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BCHT 10-K & 10-Q changes, risk factors and insider trading

Birchtech Corp. · NYSE · Measuring & Controlling Devices, Nec · CIK 728385 · All filings on SEC.gov

Everything below is quoted or computed from Birchtech Corp.'s public SEC filings. It is not a recommendation to buy or sell. Automated comparisons can contain errors; confirm with the original filing.

At a glance

30 / 7risk-factor paragraphs added / removed in latest 10-K
12new risk-factor headings
0Form 4 filings reporting open-market purchases (last 180 days)
0Form 4 filings reporting open-market sales (last 180 days)

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What changed in the latest 10-K

Comparing 10-K filed 2026-03-31 (period ending 2025-12-31) with 10-K filed 2025-03-31 (period ending 2024-12-31).

Risk Factors (10-K Item 1A)

30new paragraphs
7removed paragraphs
34reworded paragraphs
5,765 → 8,362words in section

New heading “We are currently subject to inter partes review proceedings that could adversely affect the enforceability of our patent rights.”

New heading “Trading activity for our common stock has varied, and, at times, been limited.”

New heading “Our Chief Executive Officer has the ability to significantly influence all matters submitted to our stockholders for approval.”

New heading “Delaware law, our Certificate of Incorporation and Bylaws contain certain provisions, including anti-takeover provisions, that limit the ability of stockholders to take certain actions and could delay or discourage takeover attempts that stockholders may consider favorable.”

New heading “If we fail to comply with the standards for continued listing on the NYSE American, this could negatively impact the price of our common stock and your ability to sell your shares of common stock.”

New heading “Even though we effected the 1-for-5 reverse stock split of our common stock, we cannot assure you that the market price of our common stock will remain high enough for such reverse stock split to have the intended effect of complying with the NYSE American’s minimum price requirement.”

New heading “If securities or industry analysts do not publish research or publish inaccurate or unfavorable research about our business, our stock price and trading volume could decline.”

New heading “Techniques employed by short sellers may drive down the market price of our common stock.”

New heading “We may be subject to securities litigation, which is expensive and could divert our management’s attention.”

New heading “There is no assurance that an investment in our common stock will earn any positive return.”

New heading “An investment in our common stock, and certain subsequent transactions with respect to our common stock, may result in uncertain or adverse U.S. federal income tax consequences for an investor.”

New heading “The reverse stock split could cause our stock price to decline relative to its value before the split and decrease the liquidity of shares of our common stock.”

Removed heading “Possible inability to continue as a going concern.”

Removed heading “The results of the 2024 United States presidential election has created regulatory uncertainty.”

Removed heading “There is a limited trading market for our common stock.”

Largest changes (selected automatically by length and topic keywords; quoted verbatim, no commentary)

Removed text topics: going concern
“Possible inability to continue as a going concern.”
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New text topics: liquidity
“The reverse stock split could cause our stock price to decline relative to its value before the split and decrease the liquidity of shares of our common stock.”
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New text topics: litigation
“We may be subject to securities litigation, which is expensive and could divert our management’s attention.”
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New text topics: litigation, class action
“The market price of our common stock may be volatile, and in the past companies that have experienced volatility in the market price of their securities have been subject to securities class action litigation. We may be the target of this type of litigation in the future. Securities litigation against us could result in substantial costs and divert our management’s attention from other business concerns, which could seriously harm our business.”
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Removed text topics: litigation, labor
“In addition to maintaining the revenue stream from our legacy mercury emissions control business, our plans and expectations over the next twelve months to mitigate such financial condition include receiving additional cash inflows from the judgment expected in connection with the $57.1 million jury verdict awarded to us in March 2024, additional licensing revenues and product sales from the other patent litigation recently commenced, and revenues from our entry into the water treatment business. …”
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Removed text topics: going concern
“Based on our current cash levels and burn rate, amongst other things, we believe our cash and financial resources may be insufficient to meet our anticipated needs for the next twelve months, which raises substantial doubt about our ability to continue as a going concern within one year from the issuance date of the financial statements included elsewhere in this Annual Report. …”
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Full comparison: every changed paragraph (71)

Green = added, red = removed. Unchanged paragraphs and tables are not shown. Read the complete text in the original filing.

Reworded

North American coal-fired electricity generating units comprise the basis of the market for our services and products. Regulations mandating or incentivizing the purchase of power from renewable energy sources (e.g., wind, solar, hydroelectric,hydroelectric and geothermal) and/or the phasing out of coal-fired power plants could lessen the demand for electricity from such plants and overall reduce the number of coal-fired electricity generating units and the amount of coal burned, thereby decreasing the demand for our services and products which could adversely affect our business. The phasing out of coal-fired plants has already had a negative effect on our results of operations. Continued promulgation of these regulations in North America is affected by, among other things, politics, perceived environmental impact, and public favor.

Reworded

We operate in highly competitive industries that are characterized by a diverse range of participants, including companies that operate in both the mercury capture and water treatment industries. Our major competitors in the mercury capture and water treatment markets includesinclude companies such as Arq, Inc. (formerly Advanced Emissions Solutions, Inc.), Norit Activated Carbon, Calgon Carbon Corporation, and Nalco Company LLC (also known as Nalco Water, an Ecolab company). Many of our competitors employ larger sales staff and are well established in the market with greater financial and operational resources. Our ability to compete successfully depends in part upon our ability to offer superior technology, including a superior team of technical personnel. If we are unable to maintain our competitive position, we could lose market share to our competitorscompetitors, which is likely to adversely impact our financial results.

Reworded

WeAs haveof aDecember 31, 2025, our patent portfolio relating to mercury removal ofincluded 3518 granted patents worldwide, consisting of 2713 U.S. patents and 85 foreign patents (Canada, GermanyEurope and China), with stated expiration dates ranging from AugustJanuary 20252026 to September 2034. Between August and October 2025, 13 U.S. Patents and 2 foreign patents relating to mercury removal expired. The patent data and expiration timelines cited above and elsewhere in this report are based on internal assessments and information currently available through third-party databases, including Google Patent Database. While we believe these sources to be generally reliable, they are subject to inherent data lags, indexing errors or incomplete coverage of foreign jurisdictions. Consequently, the actual status, enforceability or precise expiration dates of certain patents may differ from those stated. While we actively pursue new patents and technological advancements to replace expiring patents, there is no guarantee that future patents will be granted, or that they will be able to provide and/or allow us to maintain the same level of market protection. As a result, we may not be able to successfully protect proprietary aspects of our technology.

Reworded

With regard to our water treatment technologies, we have to date filed two provisional patent applications in the U.S. relating to water treatment. We have also filed two Patent Cooperation Treaty (“PCT”) applications and one U.S. patent application. However, provisionalthese applications do not provide enforceable patent rights unless they are converted into non-provisional applications and successfully granted by the PCT and U.S. Patent and Trademark Office. There is no assurance that our pending provisional applications will result in issued patents, or that any patents granted will provide meaningful protection against competitors.

Reworded

Patent litigation, like most types of commercial litigation, can be expensive, time-consuming, and unpredictable. Any such litigation may require us to spend a substantial amount of time and money and could distract management from our day-to-day operations. There is no assurance that we will be successful in any such litigation. Moreover, in an infringement proceeding, a court may decide that one or more of our patents are not valid or enforceable, or a court may refuse to stop the other party from using the technology at issue on the grounds that our patents do not cover the technology in question. An adverse result in any litigation could put one or more of our patents at risk of being invalidated, held unenforceable, or interpreted narrowly and could put our patent applications at risk of not issuing.being approved.

Added

On March 1, 2024, following a five-day jury trial, a federal jury in the U.S. District Court for the District of Delaware (the “Court”) awarded a $57.1 million patent infringement verdict in our favor against a group of defendants (the “CERT defendants”). Nevertheless, the ultimate success in this litigation against this group of defendants still remains uncertain due to other possible factors, including, but not limited to, the results of any post-trial motions and applications, appeals and any collectability issues. Following the trial, the Court entered non-final judgments on the verdict against the defendants and the parties submitted post-trial motions relating to the jury trial. The defendants also asserted that the Company’s claims were barred due to their defense that they had an implied license to the asserted patents. A bench trial was held on such issue. On June 10, 2025, the Court ruled that the CERT defendants failed to prove that they had such an implied license and denied their motion to alter or amend the non-final judgment. On September 25, 2025, the Court issued a Memorandum Opinion and Order denying the CERT defendants’ post-trial motion that they should not be held liable as a matter of law for induced infringement, contributory infringement or willful infringement, and on November 20, 2025, the Court issued a Memorandum Opinion and Order denying the CERT defendants’ post-trial motion for a new trial on the issues of induced infringement, contributory infringement, willful infringement and damages. Thereafter, on December 17, 2025, the Court issued a memorandum order granting the Company’s request for pre- and post-judgment interest, and denying the Company’s request for enhanced damages. Following resolution of all post-trial motions, the Court issued the final judgment in favor of the Company on December 29, 2025 in the total amount of $78,397,157, which amount includes pre-judgment interest.

Added

On January 28, 2026, the CERT defendants filed a notice of appeal of the judgment. Under applicable rules, the CERT defendants may seek a stay of execution of the judgment pending appeal by posting a bond or other security in an amount and form approved by the Court. As of the date of this report, the CERT defendants have not obtained a bonded stay. Although the automatic stay of execution applicable following entry of judgment has expired, the appeal remains pending. As a result, there can be no assurance regarding the timing or amount of any recovery, if any, from the judgment, or that the judgment will ultimately be upheld on appeal. Interest continues to accrue on the judgment amount during the pendency of the appeal.

Added

We are currently subject to inter partes review proceedings that could adversely affect the enforceability of our patent rights.

Added

Certain of our patents which pertain to mercury removal from coal-fired power plants are currently the subject of inter partes review (“IPR”) proceedings before the United States Patent and Trademark Office. IPR proceedings are a mechanism by which third parties can challenge the validity of issued patents, and they have become a frequent tool used by parties seeking to invalidate patents in our industry. Even though a jury has upheld the validity of certain of our patents in the Delaware proceeding and judgment has been entered as described in the immediately preceding risk factor and in further detail under Part I, Item 3. “Legal Proceedings”, the IPR process is independent and could result in the narrowing or invalidation of some or all of the asserted claims, which could impair or eliminate our ability to enforce the judgment, collect damages or obtain other relief. While IPRs are a common feature of the U.S. patent system, we believe that our patents are valid and enforceable. We intend to actively defend our intellectual property rights, but the outcome of any administrative proceeding cannot be predicted with certainty.

Removed

On March 1, 2024, following a five-day jury trial, a federal jury in the U.S. District Court for the District of Delaware awarded a $57.1 million patent infringement verdict in our favor against a group of defendants. Nevertheless, the ultimate success in this litigation against this group of defendants still remains uncertain due to other possible factors including, but not limited to, the results of any post-trial motions and applications, appeals and any collectability issues.

Reworded

We buy all the raw materials needed to implement our technologies and provide uniquely formulated products from third-party suppliers. Suppliers of our raw materials include large companies that have provided materials for decades and have an international presence. We believe that we have excellent relationships with our current suppliers. If any of our suppliers should become unavailable to us for any reason, there are a number of other suppliers that we believe can be contracted with to supply the raw materials that we need. However, the availability and price of those raw materials can be impacted by factors beyond our controlcontrol, including any price increases due to inflation. If such suppliers cannot meet our demand for such raw materials on a timely basis or at acceptable prices or if we are unable to offset any such increases that might occur with price adjustments to our customers, such could have a negative effect on our operations.

Reworded

We are dependent on key customers.customers and suppliers. A significant adverse change in such relationships could adversely impact our results of operations and financial condition.

Reworded

For the year ended December 31, 2025, three customers represented 29%, 11%, and 9% of the Company’s revenues, and for the year ended December 31, 2024, three customers represented 32%, 13%, and 10% of the Company’s revenues. At December 31, 2025, two customers represented 51%, and14% of the Company’s accounts receivable, and at December 31, 2024, three customers represented 32%, 26% and 9% of the Company’s accounts receivable. Our customers are concentrated, so the loss of one or more key customers or a material reduction in business performed for them could cause us to experience a decline in net sales, which could adversely affect our financial results. In addition, there can be no assurance that such customers will not experience financial difficulties or other problems which could delay such customers in paying for product and services on a timely basis or at all. Any problems with such customers can be expected to have an adverse impact on our results of operations and financial condition.

Added

For the year ended December 31, 2025, two suppliers represented 55% and 36% of the Company’s purchases. For the year ended December 31, 2024, two suppliers represented 51% and 35% of the Company’s purchases. At December 31, 2025 and 2024, 63% and 68% of the Company’s accounts payable and accrued expenses related to two vendors, respectively. The Company believes there are numerous other suppliers that could be substituted should a supplier become unavailable or non-competitive.

Reworded

Our mercury-emissions control technologies are used by coal-fired power plants primarily in the United States. At such times that gas prices remain low for sustained periods of time or such prices drop substantially, power suppliers will likely rely more upon gas-fired units rather than coal plants in meeting their power needs. Historically, gas prices have been volatile and are likely to remain volatile in the future due to numerous factors beyond our control. Although market prices for natural gas have recently remained relatively high, we cannot predict when such prices may decline and remain low for an extended period of time which, in such event, will likely cause a weaker demand for our products. In addition, mild winter months in the U.S. will also result in less of a power demanddemand, which will also be expected to negatively impact our operations.

Reworded

From time to time, we may be faced with disputes with our customers over the provisions of supply contracts relating to, among other things, pricing, quality, quantity, and the existence of specified conditions beyond our or our customers’ control that impact performance obligations under the particular contract. In the event such disputes occur, we may not be able to resolve those disputes in a satisfactory mannermanner, which could have a material adverse effect on our business, financial condition, and results of operations.

Reworded

We are subject to the requirements of the Exchange Act, including the requirements of the Sarbanes-Oxley Act of 2002. The requirements of these rules and regulations have increased in recent years, causing an increase in legal and financial compliance costs, and make some activities more difficult, time-consuming, or costly and may also place undue strain on our personnel, systems, and resources. Such rules and regulations require, among other things, that we maintain effective disclosure controls and procedures and internal control over financial reporting. This can be difficult to do. In this regard, our management concluded our internal control over financial reporting wasand disclosure controls were not effective as of December 31, 2024.2025. While we have completed certain remedial actions have been completed,actions, we continue to actively plan for and implement additional control procedures to improve our overall control environmentenvironment, and we expect these efforts to continue throughout the rest of 20252026 and beyond. As a result of this and similar activities, management’s attention may be diverted from other business concerns, which could have a material adverse effect on our business, financial condition, and results of operations. Further, investors could lose confidence in our financial reports, and our stock price may be adversely affected, if our internal controls over financial reporting continue to be found not to be effective by management or if we make disclosure of existing or potential significant deficiencies or material weaknesses in those controls in the future. Relatedly, if we fail to remediate any such material weakness in the future, we may not be able to accurately report our financial condition or results of operations.

Reworded

DiscretionOur management has discretion in the use of our available fundsfunds.

Reworded

Management has discretion concerning the use of our available funds, as well as the timing of their expenditure. As a result, investors will be relying on the judgment of management for the application of our available funds. The results and the effectiveness of the application of the available funds are uncertain. If the available funds are not applied effectively, the results of our operations may suffer. Stockholders may not agree with the manner in which management chooses to allocate and spend our available funds.

Removed

Possible inability to continue as a going concern.

Removed

Based on our current cash levels and burn rate, amongst other things, we believe our cash and financial resources may be insufficient to meet our anticipated needs for the next twelve months, which raises substantial doubt about our ability to continue as a going concern within one year from the issuance date of the financial statements included elsewhere in this Annual Report. The financial statements included elsewhere in this Annual Report have been prepared on a going concern basis, which contemplates the realization of assets and the satisfaction of liabilities in the normal course of business. The financial statements do not include any adjustments relating to the recoverability and classification of asset amounts or the classification of liabilities that might be necessary should we be unable to continue as a going concern within one year after the date the financial statements are issued.

Removed

In addition to maintaining the revenue stream from our legacy mercury emissions control business, our plans and expectations over the next twelve months to mitigate such financial condition include receiving additional cash inflows from the judgment expected in connection with the $57.1 million jury verdict awarded to us in March 2024, additional licensing revenues and product sales from the other patent litigation recently commenced, and revenues from our entry into the water treatment business. During 2024, we opened two new state of the art laboratories and have added personnel to support our entry into the water business which we believe will lead to a vibrant new revenue stream. In addition, management is exploring additional financing opportunities. While management believes these plans will alleviate substantial doubt, there is no assurance that they will be successfully realized or implemented.

Reworded

On March 28, 2025, our boardBoard of directors,Directors, along with our auditAudit committeeCommittee and with management and, following dialogue with our auditors, concluded that our previously issued financial statements for the periods ended December 31, 2023 and 2022 included in the Company’s Annual Reports ofon Form 10-K,10‑K, and the periods ended March 31, 2024, June 30, 2024, and September 30, 2024, March 31, 2023, June 30, 2023, and September 30, 2023, included in the Company’s Quarterly Reports ofon Form 10-Q,10‑Q, should no longer be relied upon as a result of the change in accounting for a certain license agreement. We concluded that the Company should have recognized the entire proceeds receivable pursuant to the agreement as revenue during the year ended December 31, 2022. The Company should also have recognized the financing component of the licensing agreement during the fiscal years ended December 31, 2023 and 2024. Such restatementrestatement, and any future restatements of our financial position, could cause uncertain sentiment in the investment community.

Reworded

Our business relies heavily on environmental regulations governing emissions from coal-fired power plants and regulations related to water treatment. In the United States, the Mercury and Air Toxics Standards (MATS) rule, issued by the U.S. Environmental Protection Agency (EPA) in 2011, is intended to reduce air emissions of heavy metals, including mercury (“Hg”),Hg, from all major U.S. power plants burning coal or oil, which are the leading source of non-natural mercury emissions in the U.S. Potable water treatment is regulated primarily by the EPA under the Safe Drinking Water Act (“SDWA”),SDWA, which establishes standards to ensure that water is safe for human consumption. In April 2024, the EPA issued the first-ever national, enforceable drinking water standard to protect communities from exposure to harmful per-and polyfluoroalkyl substances (“PFAS”),PFAS, also known as “forever chemicals”.chemicals. The Rule sets limits for five individual PFAS: PFOA, PFOS, PFNA, PFHxS, and HFPO-DA (known as /GenX Chemicals). Any changes, rollbacks or delays in these regulations could significantly impact the Company’s financial performance and growth prospects. In this regard, on May 14, 2025, the EPA under the new Trump Administration announced the agency will keep the regulations for PFOA and PFOS, but also announced its intent to extend the PFOA and PFOS MCL compliance deadlines to 2031 and establish a federal exemption framework. Additionally, the EPA announced its intent to rescind the regulations and reconsider the regulatory determinations for PFHxS, PFNA, HFPO-DA, and the Hazard Index mixture of these three PFAS plus PFBS to ensure the determinations and any resulting drinking water regulation follow the SDWA process.

Reworded

Since being enacted, the MATS Rule has been subject to legal challenges and modifications which may continue.

Reworded

Since being enacted in 2011, the MATS regulation has been subject to legal challenge.challenge and modifications. In June 2015, the U.S. Supreme Court, in Michigan v. EPA, held that the EPA unreasonably failed to consider costs in determining whether it is "“appropriate and necessary"” to regulate hazardous air pollutants, including mercury, from power plants, but left the rule in place. In April 2016, the EPA issued a supplemental finding in response to the Michigan decision and found that, after a consideration of costs, it remained appropriate and necessary to regulate such emissions from coal- and oil-fired power plants. In May 2020, the EPA, then under the first Trump Administration, reversed the determination, finding that, after weighing the costs of compliance against certain benefits of the regulation, the 2016 supplemental finding was erroneouserroneous, but left the MATS rule in place. Upon taking office, the Biden Administration in January 2021 directed the EPA to review the previous Administration’s actions on various environmental mattersmatters, including the withdrawal of the May 2020 “appropriate and necessary” determination, for conformity with the Biden AdministrationAdministration’s environmental policy. On February 9, 2022, the EPA proposed to revoke the May 2020 finding and reaffirm the EPA’s 2016 finding. On February 15, 2023, the EPA reaffirmed that it remains appropriate and necessary to regulate hazardous air pollutants, including mercury, from power plants after considering cost, and revoked the May 2020 finding. OnIn April 3, 2023, the EPA issued a proposal to strengthen and update MATS. TheSuch newlyproposal inauguratedwas secondfinalized Trumpand Administration has indicated potential shiftspublished in environmentalMay policies,2024, whichwith mayan includeeffective revisitingdate of July 8, 2024, which, among other things, strengthens and updates MATS for coal-fired power plants and tightens the emission standard for mercury for existing regulationslignite-fired suchpower asplants to a level that is aligned with the mercury standard that other coal-fired power plants have been achieving under MATS. In this regard, onOn March 12, 2025, the newly appointed EPA administrator under the Trump Administration announced plans to roll back dozens of environmental regulationsregulations, including the reconsideration of the MATS regulation. On April 8, 2025, President Trump signed a Proclamation exempting certain stationary sources, identified in Annex 1 of the Proclamation, from compliance with the 2024 updated MATS Rule. As set out in the Proclamation, the President’s exemption lasts for a period of two years beyond the updated Rule’s compliance date (i.e., for the period beginning July 8, 2027 and concluding July 8, 2029). During the two-year period, these stationary sources identified in Annex 1 are subject to the compliance obligations that they are currently subject to under MATS as the MATS Rule existed prior to the 2024 update. Annex 1 identifies 47 plant owners and over 60 power plants provided such exemption. In June 2025, the EPA proposed to repeal certain amendments finalized in 2024 to the MATS Rule and return compliance obligations to the MATS standards which existed prior to the 2024 update. On December 23, 2025, the EPA submitted a draft of the final action to the OMB for interagency review under Executive Order 12866. On February 19, 2026, following completion of the OMB interagency review process, the EPA finalized the repeal of the 2024 amendments to the MATS Rule which returned compliance to the 2012 MATS Rule requirements.

Removed

The results of the 2024 United States presidential election has created regulatory uncertainty.

Removed

The outcome of the 2024 U.S. presidential election has introduced significant uncertainty regarding future environmental regulations, particularly those affecting mercury emissions from power plants. The newly inaugurated administration has signaled potential shifts in environmental policy, including possible rollbacks of existing regulations and changes in enforcement priorities. For instance, if the administration weakens or repeals the MATS Rule, such regulatory changes could materially impact our operations. In addition, any weakening, rollback, or delayed implementation of PFAS-related regulations could reduce demand for our water treatment technologies, testing services, or remediation solutions, negatively impacting our growth prospects.

Reworded

Risks AssociatedRelated withto our Common Stock

Added

Trading activity for our common stock has varied, and, at times, been limited.

Removed

There is a limited trading market for our common stock.

Reworded

Our common stock is currently traded in Canada on the Toronto Stock Exchange (“TSX”) under the symbol “BCHT” and isprior to February 26, 2026 was quoted in the United States on the OTCQB operated by OTC Markets Group Inc. under the symbol “BCHT”. Effective February 26, 2026, our common stock became listed and began trading on the NYSE American under the symbol “BCHT”, at which point our common stock ceased being traded on the OTCQB. Historically, the trading volume for our common stock has varied and, at times, been limited. Accordingly, if we are not able to maintain the listing of our shares of common stock on the NYSE American or the TSX and our common stock becomes quoted on the OTCQB again, investors may find it more difficult to buy and sell our shares. These factors may have an adverse impact on the trading and price of our common stock.

Reworded

Any of these factors, as well as broader market and industry factors, may result in large and sudden changes in the trading volume of our common stock and could seriously harm the market price of our common stock, regardless of our operating performance. This may prevent you from being able to sell your shares of common stock at or above the price you paid for yoursuch shares of our common stock,shares, if at all. In addition, following periods of volatility in the market price of a company’s securities, stockholders often institute securities class action litigation against that company. Our involvement in any class action suit or other legal proceeding could divert our senior management’s attention and could adversely affect our business, financial condition, results of operations, and prospects.

Reworded

Shares of common stock eligible for future sale may have adverse effects on our share price.

Reworded

Sales of substantial amounts of shares of common stock or the perception that such sales could occur may adversely affect the prevailing market price for our shares. We may issue additional shares of common stock in subsequent public offerings or private placements to make new investments or for other purposes. We are not required to offer any such shares of common stock to existing shareholdersstockholders on a preemptive basis. Therefore, it may not be possible for existing shareholdersstockholders to participate in such future share issuances, which may dilute the existing shareholders’stockholders’ interests in us.

Reworded

WeIn February 2026, we completed a financing transaction that strengthened our liquidity. However, we may need additional capital in the future, which may not be available on acceptable terms or at all, to among other things, continue investing in our business, pursue acquisitions and other strategic transactions. Future financings may involve the issuance of debt, equity, and/or securities convertible into or exercisable or exchangeable for our equity securities. These financings may not be available to us on commercially reasonable terms or at all if and when we require funding. If we are able to consummate such financings, the trading price of our common stock could be adversely affected and/or the terms of such financings may adversely affect the interests of our existing stockholders. Any failure to obtain additional working capital, if and when required, could have a material adverse effect on our business and financial condition and may result in a decline in our stock price.

Reworded

Our officersindemnification obligations to directors and directors are entitled to indemnification from us for liabilities under our articles of incorporation, whichofficers could be costly to us and may discourage thelawsuits exerciseagainst ofthem, potentially limiting stockholder rights.rights and remedies.

Reworded

Our articlesCertificate of incorporationIncorporation provideprovides that we possess and may exercise all powers of indemnification of our officers, directors, employees, agents, and other persons and our bylawssecond amended and restated by-laws (“Bylaws”) also require us to indemnify our officers and directors as permitted under the provisions of the Delaware General Corporate Law.Law of the State of Delaware (the “DGCL”). In addition, we have entered into agreements to indemnify our directors and executive officers. These agreements, among other things, require us to indemnify these individuals for certain expenses (including attorneys’ fees), judgments, fines, and settlement amounts reasonably incurred by such person in any action or proceeding, including any action by or in our right, on account of any services undertaken by such person on behalf of our Company or that person’s status as a member of our Board of Directors to the maximum extent allowed under Delaware law. The foregoing indemnification obligations could result in our incurring substantial expenditures to cover the cost of settlement or damage awards against directors and officers. These provisions and resultant costs may also discourage us from bringing a lawsuit against directors, officers, and employees for breaches of their fiduciary duties, and may similarly discourage the filing of derivative litigation by our stockholders against our directors, officers, and employees even though such actions, if successful, might otherwise benefit the Company and stockholders.

Reworded

OurIf our common stock is currentlybecomes characterized as a “penny stock” again under SEC rules.rules, Itit may be more difficult to resell securitiesour classified as “pennycommon stock.”

Reworded

OurPrior to the recent listing of our common stock ison currentlythe characterizedNYSE asAmerican, our common stock was considered a “penny stock” under applicable SEC rules (generally defined as non-exchange traded stock with a per-share price below $5.00). TheseWhile we do not expect our common stock to be considered a “penny stock” following our listing, if we are later deemed a “penny stock”, certain rules impose additional sales practice requirements on broker-dealers that recommend the purchase or sale of penny stocks to persons other than those who qualify as “established customers” or “accredited investors.” For example, broker-dealers must determine the appropriateness for non-qualifying persons of investments in penny stocks. Broker-dealers must also provide, prior to a transaction in a penny stock not otherwise exempt from the rules, a standardized risk disclosure document that provides information about penny stocks and the risks in the penny stock market. The broker-dealer also must provide the customer with current bid and offer quotations for the penny stock, disclose the compensation of the broker-dealer and its salesperson in the transaction, furnish monthly account statements showing the market value of each penny stock held in the customer’s account, provide a special written determination that the penny stock is a suitable investment for the purchaser, and receive the purchaser’s written agreement to the transaction.

Reworded

For these reasons, penny stocks may have a limited market and, consequently, limited liquidity. We can give no assurance at what time, if ever, our common stock will notmay be classified as a "“penny stock"” in the future.

Reworded

If we cannot continue to satisfy the continued listing requirements,requirements of the NYSE American and/or the TSX, our securitiescommon stock may be delisted from the NYSE American and/or the TSX, which could negatively impact the price of our securitiescommon stock and your ability to sell them.

Reworded

On JulyFebruary 20,26, 2023,2026, our shares of common stock began to trade on the TSXNYSE VentureAmerican Exchangeunder (the symbol “TSXVBCHT”). On October 9, 2024, we received conditional approval to list our shares on the TSX and graduate from the TSXV to the TSX, and on November 12, 2024, our sharescommon stock commenced trading on the TSX. We cannot assure you that our securities will continue to be listed on the TSX. In order to maintain our listing on the NYSE American and TSX, we will be required to comply with certain rules of the NYSE American and TSX, respectively, including those regarding a minimum public float, and various additional requirements. We may not be able to continue to satisfy these requirements and applicable rules. If we are unable to satisfy the NYSE American and/or TSX criteria for maintaining our listing, our securitiescommon stock could be subject to delisting from the NYSE American and/or TSX.

Reworded

If the NYSE American and/or TSX subsequently delists our securitiescommon stock from trading, we could face significant consequences, including:

Reworded

Potential future sales pursuant to Rule 144.144 may depress the price of our common stock.

Reworded

Many of the shares of our common stock presently held by management and others are “restricted securities” as that term is defined in Rule 144, promulgated under the United States Securities Act of 1933, as amended.amended (the “Securities Act”). Under Rule 144,144 of the Securities Act, a person (or persons whose shares are aggregated) who has satisfied a certain holding period, may, under certain circumstances, sell such shares or a portion of such shares. Such holding periods have already been satisfied in many instances. Therefore, actual sales or the prospect of sales of such shares under Rule 144 in the future may depress the price of our common stock.

Reworded

Except as required by the Federalfederal Securitiessecurities Law,laws, we do not undertake any obligation to release publicly any revisions to any forward-looking statements to reflect events or circumstances after the date of this report or for any other reason.

Added

Our Chief Executive Officer has the ability to significantly influence all matters submitted to our stockholders for approval.

Added

As of March 31, 2026, our Chief Executive Officer, Richard MacPherson, beneficially owned approximately 11.94% of our outstanding shares of common stock. As a result, while we do not expect to be a “controlled company” within the meaning of the corporate governance rules of the NYSE American, Mr. MacPherson is able to significantly influence all matters submitted to our stockholders for approval, as well as our management and affairs. For example, Mr. MacPherson would significantly influence the election of directors and the approval of any merger, consolidation or sale of all or substantially all of our assets. This concentration of voting power could delay or prevent an acquisition of the Company on terms that other stockholders may desire.

Added

Delaware law, our Certificate of Incorporation and Bylaws contain certain provisions, including anti-takeover provisions, that limit the ability of stockholders to take certain actions and could delay or discourage takeover attempts that stockholders may consider favorable.

Added

Our Certificate of Incorporation, Bylaws and the DGCL contain provisions that could have the effect of rendering more difficult, delaying, or preventing an acquisition deemed undesirable by our Board of Directors and therefore depressing the trading price of our common stock. These provisions also could make it difficult for stockholders to take certain actions, including electing directors who are not nominated by the current members of our Board of Directors or taking other corporate actions, including effecting changes in our management. Among other things, our Certificate of Incorporation and Bylaws include provisions regarding:

Added

If we fail to comply with the standards for continued listing on the NYSE American, this could negatively impact the price of our common stock and your ability to sell your shares of common stock.

Added

In order to maintain our listing on the NYSE American, we will be required to comply with certain rules of the NYSE American, including those regarding minimum stockholders’ equity, minimum share price, minimum market value of publicly held shares, and various additional requirements. Even though we initially met the listing requirements and other applicable rules of the NYSE American, we may not be able to continue to satisfy these requirements and applicable rules. If we are unable to satisfy the NYSE American criteria for maintaining our listing, our securities could be subject to delisting.

Added

If the NYSE American subsequently delists our common stock from trading, we could face significant consequences, including:

Added

Even though we effected the 1-for-5 reverse stock split of our common stock, we cannot assure you that the market price of our common stock will remain high enough for such reverse stock split to have the intended effect of complying with the NYSE American’s minimum price requirement.

Added

In connection with the uplist of our common stock to the NYSE American, we effected a 1-for-5 reverse stock split on December 26, 2025 with the primary purpose to allow us to meet the NYSE American’s minimum price requirement. There can be no assurance that the market price of our common stock following such reverse stock split will remain at the level required for compliance with that requirement. In any event, other factors unrelated to the number of shares of our common stock outstanding, such as negative financial or operational results, could adversely affect the market price of our common stock and thus jeopardize our ability to meet or maintain the NYSE American’s minimum price requirement.

Added

If securities or industry analysts do not publish research or publish inaccurate or unfavorable research about our business, our stock price and trading volume could decline.

Added

The trading market for our common stock will depend in part on the research and reports that securities or industry analysts publish about us or our business. Securities and industry analysts do not currently, and may never, publish research on our Company. If no securities or industry analysts commence coverage of our Company, the trading price for our common stock would likely be negatively impacted. In the event securities or industry analysts initiate coverage, if one or more of the analysts who covers us downgrades our common stock or publishes inaccurate or unfavorable research about our business, our stock price may decline. If one or more of these analysts ceases coverage of our Company or fails to publish reports on us regularly, demand for our common stock could decrease, which might cause our stock price and trading volume to decline.

Added

Techniques employed by short sellers may drive down the market price of our common stock.

Added

Short selling is the practice of selling securities that the seller does not own but rather has borrowed from a third party with the intention of buying identical securities back at a later date to return to the lender. The short seller hopes to profit from a decline in the value of the securities between the sale of the borrowed securities and the purchase of the replacement shares, as the short seller expects to pay less in that purchase than it received in the sale.

Showing the first 60 of 71 changed paragraphs. The complete comparison will be part of Pro (coming soon). Meanwhile you can read the full text in the original filing.

Management's Discussion & Analysis (MD&A) (10-K Item 7)

38new paragraphs
24removed paragraphs
33reworded paragraphs
6,619 → 7,919words in section

New heading “Additional Information”

Removed heading “Restatements of Previously Issued Consolidated Financial Statements”

Largest changes (selected automatically by length and topic keywords; quoted verbatim, no commentary)

Removed text topics: restatement
“Restatements of Previously Issued Consolidated Financial Statements”
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New text topics: lawsuit, fine
“Following a five-day trial, on March 1, 2024, we were awarded a $57.1 million patent infringement verdict by a federal jury in the U.S. District Court for the District of Delaware against a remaining group of defendants in the lawsuit commenced by us in 2019. Such group of affiliated defendants included multiple limited liability companies with refined coal industry operations, including CERT Operations II LLC, CERT Operations IV LLC, CERT Operations V LLC, and CERT Operations RCB LLC. …”
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Removed text topics: litigation, restructuring
“On February 27, 2024, and pursuant to a Debt Restructuring Agreement entered into on such date with AC Midwest Energy LLC (“AC Midwest”), we made an approximate $9.0 million principal payment against an approximate $13.2 million unsecured note held by AC Midwest Energy LLC (“AC Midwest”) and repaid in full the remaining principal balance of approximately $272,000 due on a secured note held by AC Midwest. …”
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Removed text topics: litigation, impairment
“Operating expenses consisted of selling, general and administrative expenses (“SG&A”) and an impairment loss of $43,000 in 2024 and SG&A and an impairment loss of approximately $220,000 in 2023. SG&A expenses were approximately $14,216,000 and $14,207,000 for the years ended December 31, 2024 and 2023, respectively. Although total SG&A expenses were largely unchanged in 2024 compared to the prior year, there were significant variances in individual categories. …”
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Removed text topics: lawsuit, fine
“Following a five-day trial, on March 1, 2024, we were awarded a $57.1 million patent infringement verdict by a federal jury in the U.S. District Court for the District of Delaware against a remaining group of defendants in the lawsuit commenced by us in 2019. Such group of affiliated defendants included multiple limited liability companies with refined coal industry operations, including CERT Operations II LLC, CERT Operations IV LLC, CERT Operations V LLC, and CERT Operations RCB LLC. …”
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Removed text topics: litigation, lawsuit
“In July 2024, we commenced three patent infringement lawsuits against 14 defendants, including coal-fired power utilities, in three separate U.S. District Courts in Arizona, Iowa and Missouri. In January 2025, we commenced another patent infringement lawsuit against four defendants in the U.S. District Court for the Western District of Missouri. Such lawsuit claims infringement of the Company’s patent rights related to the Company’s mercury emissions reduction technologies. …”
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Full comparison: every changed paragraph (95)

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Reworded

Unless indicated otherwise, references in this discussion and analysis to the “Company,” “we,” “us,” or “our” refer collectively to Birchtech Corp. (formerly Midwest Energy Emissions Corp.) and its consolidated subsidiaries.

Removed

Restatements of Previously Issued Consolidated Financial Statements

Removed

As described in Note 2—Restatement of Previously Issued Financial Statements, for the period ended December 31, 2024, management identified an error in the previously reported financial statements related to the under recognition of revenue during the year ended December 31, 2022. The Company entered into a license agreement for which it should have recognized the entire proceeds receivable pursuant to the agreement as revenue during the year ended December 31, 2022. The Company should also have recognized the financing component of the licensing agreement during the fiscal years ended December 31, 2023 and 2024. As a result, the consolidated financial statements appearing elsewhere in this report reflect this restatement.

Reworded

We provide mercury capture solutions for coal-fired power plants driven by our patented two-part Sorbent Enhancement Additive (SEA®) process using a powerful combination of science and engineering. Our leading-edge services have been shown to achieve mercury emissions removal at a significantly lower cost and with less operational impact to coal-fired power plants than other used methods, while maintaining and/or increasing power plant output and preserving the marketability of byproducts for beneficial use. We design systems and materials tailored and formulated specifically to each customer’s coal-fired units. North America is currently the largest market for our emissions technologies. The market for mercury removal from power plant emissions in the United States has largely been driven by federal regulations. The MATS rule, proposed by the EPA in May 2011 and which became effective in April 2012, is intended to reduce air emissions of heavy metals, including Hg, from all major U.S. power plants burning coal or oil, which are the leading source of non-natural mercury emissions in the U.S. Our mercury removal technologies and systems will achieve mercury removal levels which meet or exceed the 2012 Coal- and Oil-Fired Electric Utility Steam Generating Units National Emission Standards for Hazardous Air Pollutants, as revised, known as the MATS,MATS requirements with lower cost and plant systems impacts than typical PAC or BAC sorbent injection systems. Our products have been shown to be successful across a myriad of fuel and system types, tunable to any configuration, and environmentally friendly, allowing for the recycling of fly ash for beneficial use. North America is currently the largest market for our emissions technologies.

Added

In April 2023, the EPA issued a proposal to strengthen and update MATS. Such proposal was finalized and published in May 2024 with an effective date of July 8, 2024 which, among other things, strengthens and updates MATS for coal-fired power plants and tightens the emission standard for mercury for existing lignite-fired power plants to a level that is aligned with the mercury standard that other coal-fired power plants have been achieving under MATS.

Added

On March 12, 2025, the newly appointed EPA administrator under the Trump Administration announced plans to roll back dozens of environmental regulations including the reconsideration of the MATS regulation. On April 8, 2025, President Trump signed a Proclamation exempting certain stationary sources, identified in Annex 1 of the Proclamation, from compliance with the 2024 updated MATS Rule. As set out in the Proclamation, the President’s exemption lasts for a period of two years beyond the updated Rule’s compliance date (i.e., for the period beginning July 8, 2027, and concluding July 8, 2029). During the two-year period these stationary sources identified in Annex 1 are subject to the compliance obligations that they are currently subject to under MATS as the MATS Rule existed prior to the 2024 update. Annex 1 identifies 47 plant owners and over 60 power plants provided such exemption, which list includes a number of our customers.

Added

In June 2025, the EPA proposed to repeal certain amendments finalized in 2024 to the MATS Rule and return compliance obligations to the MATS standards which existed prior to the 2024 update. On December 23, 2025, the EPA submitted a draft of the final action to the OMB for interagency review under Executive Order 12866. On February 19, 2026, following completion of the OMB interagency review process, the EPA finalized the repeal of the 2024 amendments to the MATS Rule which returned compliance to the 2012 MATS Rule requirements.

Added

In April 2024, the EPA under the Biden Administration issued the first-ever national, enforceable drinking water standard to protect communities from exposure to harmful PFAS, also known as “forever chemicals”. The rule established legally enforceable MCLs for six PFAS in drinking water: PFOA, PFOS, PFHxS, PFNA, and HFPO-DA as contaminants with individual MCLs, and PFAS mixtures containing at least two or more of PFHxS, PFNA, HFPO-DA, and PFBS using a Hazard Index MCL to account for the combined and co-occurring levels of these PFAS in drinking water. Under the Rule, public water systems must monitor these PFAS and must complete initial monitoring by 2027, followed by ongoing compliance monitoring. Water systems must also provide the public with information on the levels of these PFAS in their drinking water beginning in 2027.

Reworded

In April 2024, we announced the introduction of our new divisionwater treatment business to address the growing potable (drinking) water market with newnext-generation sorbent technologies under development.technologies. These new technologiessolutions involveare being designed to use significantly less use of activated carboncarbon, and areoffering a much more environmentally friendlysustainable approach to water treatment.treatment while maintaining or improving contaminant removal performance. Our products target not only compliance with emerging PFAS regulations, but also broader opportunities in water quality improvement positioning us to serve a large and expanding market.

Added

As part of this strategic pivot, we have invested in the commissioning of two state-of-the-art laboratory facilities—one in Pennsylvania and one in North Dakota—referred to as our “Design Centers.” The Design Centers are dedicated sites for water treatment innovation and development. Together, we believe these facilities represent the only known facilities that have integrated capability in North America to thermally reactivate spent GAC under controlled conditions and subsequently conduct RSSCTs to directly compare reactivated GAC performance against virgin carbon counterparts. This combination allows us to evaluate reactivated GAC as a sustainable and cost-effective alternative to virgin carbon and address key water utility questions including how to optimize media changeout schedules, strategies to reduce operational costs, and provide lab-based validation of treatment performance for PFAS and other contaminants.

Added

These Design Centers will also function as a direct resource for the water treatment industry, offering thermal reactivation, contaminant analysis, and carbon performance evaluations. By enabling municipal and industrial utilities to lower compliance costs and improve operational efficiency, we expect to build strong technical credibility and customer engagement ahead of large-scale market adoption. Importantly, we believe our technology platform is not solely dependent on PFAS regulations as market demand for improved water treatment solutions is broad.

Added

Our investment in our Design Centers also serves as the basis for our planned commercial thermal reactivation plants which we intend to open and operate in the future. Data generated from the Design Centers is being used to define permitting requirements, capital expenditure parameters, and projected operating costs accelerating the commercialization timeline while avoiding costly future reliance on third-party providers.

Added

On May 14, 2025, the EPA under the new Trump Administration announced the agency will keep the regulations for PFOA and PFOS. As part of this action, the EPA also announced its intent to extend the PFOA and PFOS MCL compliance deadlines to 2031 and establish a federal exemption framework. Additionally, the EPA announced its intent to rescind the regulations and reconsider the regulatory determinations for PFHxS, PFNA, HFPO-DA/GenX), and the Hazard Index mixture of these three PFAS plus PFBS to ensure the determinations and any resulting drinking water regulation follow the SDWA process.

Added

In light of evolving water regulations and funding dynamics, we believe the Company is well positioned to capture a meaningful share in the rapidly growing water treatment sector.

Added

Additional Information

Added

In May 2024, we announced the appointment of David Mazyck to head our new business line to address the potable (drinking) water market with new sorbent technologies under development. In June 2025, he was appointed our Executive Director of Innovation and Commercialization. In addition, in May 2024, we announced the appointment of Dennis Baranik as Director of National Sales. Mr. Baranik oversees product sales and IP licensing in the Company’s core business for mercury emissions capture as well as support both product and business development for the water market.

Added

Effective on October 17, 2024, as part of our rebranding, we changed our corporate name from Midwest Energy Emissions Corp. to Birchtech Corp. pursuant to a certificate of amendment to our Certificate of Incorporation filed with the State of Delaware, and on October 17, 2024 our common stock commenced trading under the ticker symbol “BCHT”.

Added

On October 9, 2024, we received conditional approval to list our shares of common stock on the TSX and graduate from the TSXV to the TSX. On November 12, 2024, our shares of common stock commenced trading on the TSX under the ticker symbol “BCHT”.

Added

On February 26, 2026, our shares of common stock commenced trading on the NYSE American under the symbol “BCHT” and ceased being traded on the OTCQB on that date.

Removed

AC is a form of carbon that has been processed to have a large surface area and a high degree of porosity. This gives it the ability to adsorb a wide range of substances, making it highly effective at removing particles, toxins and impurities. GAC and similar agglomerated activated carbons (or shaped activated carbons) are a form of activated carbon that is specifically produced in a granular, coarse form, as opposed to powdered or pelletized forms. This granularity allows for better flow through filtration systems, which makes it ideal for use in applications that require a continuous flow of air, water or liquids. GAC is commonly used in water filtration systems, including municipal water treatment plants. It is particularly effective at removing chlorine, organic compounds, pesticides, heavy metals, and other contaminants. Reactivated GAC is spent GAC that has been restored for reuse, making it more sustainable and cost-effective.

Removed

Utilizing renewal raw materials allows us to develop and provide shaped activated carbon that can compete with other commercially available GAC options, and provide a superior activated carbon technology to remove contaminants (including PFAS) from potable water. While pending PFAS regulations are projected to significantly increase overall GAC demand, our products are expected to be successfully applied regardless of PFAS regulations reflecting significant competitive advantages (i.e., renewable raw material sources, low arsenic content, and overall performance) to presently available GAC products for the water market. In addition, our product(s) may provide inherent performance advantages such as lower pressure drop relative to existing carbon products in the marketplace today.

Removed

While the initial focus for our water treatment technologies will be on the potable water market, we expect that our technologies will also be valuable for industrial wastewater remediation. Industrial wastewater is the liquid waste generated by industrial activities, including manufacturing, processing, and production facilities. It often contains pollutants such as organic matter, heavy metals, chemicals, oils, and other contaminants that must be treated before being discharged into the environment or reused. We believe our water treatment technologies will be well suited to treat such industrial wastewater in an optimal and cost-effective manner.

Added

On December 23, 2025, we filed with the Secretary of State of the State of Delaware a certificate of amendment to our Certificate of Incorporation to effect a reverse stock split of our issued and outstanding shares of common stock at a ratio of 1-for-5, effective December 26, 2025. Following the reverse stock split, every five (5) shares of our issued and outstanding common stock were automatically converted into one (1) issued and outstanding share of common stock, without any change in par value per share. No fractional shares were issued in connection with the reverse stock split, and any shareholders who would have received fractional shares of common stock instead were rounded up to the nearest whole number of shares of common stock. The reverse stock split did not affect the number of shares of authorized common stock. The common stock began trading on a reverse stock split-adjusted basis on December 31, 2025.

Added

Following a five-day trial, on March 1, 2024, we were awarded a $57.1 million patent infringement verdict by a federal jury in the U.S. District Court for the District of Delaware against a remaining group of defendants in the lawsuit commenced by us in 2019. Such group of affiliated defendants included multiple limited liability companies with refined coal industry operations, including CERT Operations II LLC, CERT Operations IV LLC, CERT Operations V LLC, and CERT Operations RCB LLC. The jury determined that these defendants infringed our patented technologies for mercury emissions and were liable for willful infringement, along with inducing and contributory infringement. Following the trial, the Court entered non-final judgments on the verdict against the CERT defendants and the parties submitted post-trial motions relating to the jury trial. The CERT defendants also asserted that the Company’s claims were barred due to their defense that they had an implied license to the asserted patents. A bench trial was held on such issue. On June 10, 2025, the Court ruled that the CERT defendants failed to prove that they had such an implied license and denied their motion to alter or amend the non-final judgment. On September 25, 2025, the Court issued a Memorandum Opinion and Order denying the CERT defendants’ post-trial motion that they should not be held liable as a matter of law for induced infringement, contributory infringement or willful infringement, and on November 20, 2025, the Court issued a Memorandum Opinion and Order denying the CERT defendants’ post-trial motion for a new trial on the issues of induced infringement, contributory infringement, willful infringement and damages. Thereafter, on December 17, 2025, the Court issued a memorandum order granting the Company’s request for pre- and post-judgment interest, and denying the Company’s request for enhanced damages. Following resolution of all post-trial motions, the Court issued the final judgment in favor of the Company on December 29, 2025 in the total amount of $78,397,157, which amount includes pre-judgment interest. On January 28, 2026, the CERT defendants filed a notice of appeal of the judgment. Under applicable rules, the CERT defendants may seek a stay of execution of the judgment pending appeal by posting a bond or other security in an amount and form approved by the Court. As of the date of this report, the CERT defendants have not obtained a bonded stay. Although the automatic stay of execution applicable following entry of judgment has expired, the appeal remains pending. Interest continues to accrue on the judgment amount during the pendency of the appeal.

Removed

On February 27, 2024, and pursuant to a Debt Restructuring Agreement entered into on such date with AC Midwest Energy LLC (“AC Midwest”), we made an approximate $9.0 million principal payment against an approximate $13.2 million unsecured note held by AC Midwest Energy LLC (“AC Midwest”) and repaid in full the remaining principal balance of approximately $272,000 due on a secured note held by AC Midwest. As part of the restructuring, we negotiated a reduction in the profit participation preference held by AC Midwest from approximately $17.7 million to $7.9 million (the “Restructured Profit Share”). Such Restructured Profit Share is “non-recourse” and shall only be paid from net litigation proceeds from claims relating to our intellectual property. In addition, pursuant to the Debt Restructuring Agreement, in March 2024, we were able to facilitate the private sale of certain shares of common stock held by AC Midwest and received a $960,000 credit toward the remaining balance due on the unsecured note. In August 2024, we repaid in full the remaining principal balance of approximately $3.2 million due on the unsecured note held by AC Midwest. As a result, the only remaining debt obligation to AC Midwest is the “non-recourse” Restructured Profit Share.

Removed

Following a five-day trial, on March 1, 2024, we were awarded a $57.1 million patent infringement verdict by a federal jury in the U.S. District Court for the District of Delaware against a remaining group of defendants in the lawsuit commenced by us in 2019. Such group of affiliated defendants included multiple limited liability companies with refined coal industry operations, including CERT Operations II LLC, CERT Operations IV LLC, CERT Operations V LLC, and CERT Operations RCB LLC. The jury determined that these defendants infringed our patented technologies for mercury emissions and were liable for willful infringement, along with inducing and contributory infringement. Following the trial, various post-trial motions and applications were made by the parties. We are awaiting rulings from the Court.

Removed

In April 2024, the EPA issued the first-ever national, enforceable drinking water standard to protect communities from exposure to harmful per-and polyfluoroalkyl substances (“PFAS”), also known as “forever chemicals”. The Rule sets limits for five individual PFAS: PFOA, PFOS, PFNA, PFHxS, and HFPO-DA (known as GenX Chemicals). The Rule also sets a hazard index level for two or more of four PFAS as a mixture: PFNA, PFHxS, HFPO-DA, and PFBS. Under the Rule, public water systems must monitor these PFAS and will have three years to complete initial monitoring (by 2027), followed by ongoing compliance monitoring. Water systems must also provide the public with information on the levels of these PFAS in their drinking water beginning in 2027.

Removed

In May 2024, we announced the appointment of David Mazyck to head our new division to address the potable (drinking) water market with new sorbent technologies under development.

Removed

In addition, in May 2024, we announced the appointment of Dennis Baranik as Director of National Sales. Mr. Baranik will oversee product sales and IP licensing in the Company’s core business for mercury emissions capture as well as support both product and business development for the water market.

Removed

In July 2024, we commenced three patent infringement lawsuits against 14 defendants, including coal-fired power utilities, in three separate U.S. District Courts in Arizona, Iowa and Missouri. In January 2025, we commenced another patent infringement lawsuit against four defendants in the U.S. District Court for the Western District of Missouri. Such lawsuit claims infringement of the Company’s patent rights related to the Company’s mercury emissions reduction technologies. The United States Judicial Panel on Multidistrict Litigation has ordered that such patent infringement lawsuits be consolidated and centralized in the Southern District of Iowa.

Removed

Effective as of October 8, 2024, we entered into agreement with one of the utilities and an affiliated entity named as defendants in the patent infringement lawsuit commenced by the Company in July 2024 in Arizona. Such agreement provides such parties and their affiliates with a non-exclusive license to certain Company patents for use in connection with a certain designated coal-fired power plant operated by such utility. The agreement includes a one-time license fee and provides the Company with a right of first refusal for certain of such utility’s product supply for mercury emissions capture at such designated power plant.

Reworded

Effective as of JanuarySeptember 7,30, 2025, we entered into an agreement with another oneutility of the utilitiesnot named as a defendant in our patent litigations, but a party to the ArizonaIPR action.petitions filed with the U.S. Patent and Trademark Office (“PTO”). Such agreement provides such partyutility and its affiliates with a with a non-exclusive license to certain Company patents related to the Company’s two-part SEA® process for use in connection with a certain designated coal-fired power plant operated by suchthem. utility. TheSuch agreement includes a one-time license fee and provides the Company with the right to be included in such party’s bidding process for certain product supply for mercury emissions capture at such party’s designated power plant. Such party has agreed to withdraw from IPR petitions.

Added

Effective as of October 15, 2025, the Company entered into an agreement with another utility named as a defendant in the Southern District of Iowa action. While the terms of the agreement are confidential, it includes a resolution of the disputes between the Company and that utility and its affiliates and provides for their withdrawal from related proceedings. As a result of this and the other agreements described above, the Company and several defendants have resolved their respective claims, and those defendants have been dismissed from the applicable actions. There remain two utilities in the consolidated Iowa actions.

Added

As a result of the agreements described above, the Company and several defendants have resolved their respective claims, and those defendants have been dismissed from the applicable actions. There remain two utilities in the consolidated Iowa actions.

Added

As described above, between January and April 2025, certain defendants in the consolidated Iowa actions filed IPR petitions seeking to invalidate various asserted claims of the Company’s patents. In September and October 2025, the U.S. Patent Trial and Appeal Board (“PTAB”) granted the institution of review of certain of the Company’s asserted patents. The Company sought review of those institutional decisions by the PTO Director. The Director has since issued decisions granting reconsideration in part and denying it in part, and certain matters remain subject to further motions and proceedings before the PTAB. In connection with these proceedings, the Court in the consolidated Iowa actions has stayed the litigation pending completion of the IPR process.

Added

Between June and July 2025, certain other defendants in the consolidated Iowa actions filed IPR petitions seeking to invalidate various asserted claims of the Company’s patents. These petitions were denied institution by the PTO Director, and requests for reconsideration of those denials have also been denied.

Added

The Company cannot predict the ultimate outcome of the pending IPR proceedings or related matters.

Removed

In January 2025, we commenced another patent infringement lawsuit against four defendants in the U.S. District Court for the Western District of Missouri. Such lawsuit claims infringement of the Company’s patent rights related to the Company’s mercury emissions reduction technologies. Named as defendants in the action are Evergy, Inc., Evergy Metro Inc., Evergy Missouri West, Inc. and Evergy Kansas Central, Inc. In the lawsuit, we request a trial by jury against the defendants and seek damages, costs, and legal expenses, along with a finding of willful infringement by the defendants, and an injunction prohibiting the defendants from further acts of infringement. In February 2025, such lawsuit was consolidated with and transferred to the Southern District of Iowa.

Removed

Effective on October 17, 2024, as part of our rebranding, we changed our corporate name from Midwest Energy Emissions Corp. to Birchtech, Inc. pursuant to a certificate of amendment to our certificate of incorporation filed with the State of Delaware, and on October 17, 2024 our common stock commenced trading under the ticker symbol “BCHT”.

Removed

On October 9, 2024, we received conditional approval to list our shares of common stock on the Toronto Stock Exchange (“TSX”) and graduate from the TSX Venture Exchange (“TSXV”) to the TSX. On November 12, 2024, our shares commenced trading on the TSX under the ticker symbol “BCHT”.

Added

Revenues

Reworded

We generated revenues of approximately $17,406,000$17,626,000 and $17,625,000 (as restated)$17,406,000 for the years ended December 31, 20242025 and 2023,2024, respectively. Such revenues were primarily derived from sorbent product sales which were approximately $14,482,000$14,233,000 and $17,093,000$14,482,000 for the years ended December 31, 20242025 and 2023,2024, respectively. Revenues can be dependent on natural gas prices, extreme weather, and the maintenance and downtime requirements of customer plants. The decrease in revenues for product sales from the prior year was primarily due to the mix of plants runningrunning, unexpected customer forced outages and products sold in 20242025 resulting in decreased product revenues for 20242025 compared to the prior year, offset by an increase in licensing revenues for 2024 compared to 2023.year.

Reworded

Licensing revenues were approximately $2,808,000$3,159,000 and $388,000 (as restated)$2,808,000 for the years ended 20242025 and 2023,2024, respectively. Such increase was primarily due to a new licensing agreementagreements which was entered into in 20242025 with aprimarily utility.utility defendants.

Added

Other revenues, consisting of demonstrations, consulting and equipment sales, were approximately $234,000 and $116,000 for the years ended December 31, 2025 and 2024, respectively. Other revenues have not been material in relation to total revenues.

Removed

Equipment sales and other revenues for the years ended December 31, 2024 and 2023 were approximately $116,000 and $145,000, respectively. This decrease was primarily due to a decrease in demonstrations and consulting revenues offset by an increase in equipment sales revenues in 2024 compared to 2023.

Reworded

Cost of sales were approximately $10,305,000$10,225,000 and $12,172,000$10,305,000 for the years ended December 31, 20242025 and 2023,2024, respectively. The slight decrease in cost of sales of approximately $1,867,000$80,000 was primarily attributable to decreased product sales in 20242025 compared to the prior year, together with a decreasechange in the Company’s costmix of carbonproducts sold in 20242025 compared to 2023.2024.

Reworded

Gross profit was approximately $7,101,000$7,402,000 and $5,453,000 (as restated)$7,101,000 for the years ended December 31, 20242025 and 2023,2024, respectively. ThisThe increase in gross profit of approximately $1,648,000$301,000 was primarily due to higher licensing revenues in 20242025 compared to 2023,2024, which typically carry higher margins than product sales, thus contributing to the overall improvement in gross profit.

Added

Operating expenses consisted of SG&A and research and development expenses (“R&D”) in 2025 and SG&A and in 2024. Operating expenses decreased significantly in 2025 compared to 2024, despite incurring costs related to the development of the Company’s water treatment business. SG&A expenses were approximately $8,577,000 and $14,216,000 for the years ended December 31, 2025 and 2024, respectively. Total SG&A expenses decreased in 2025 compared to the prior year, as a result of variances in individual categories. This includes decreases in salaries and wages, professional fees and consulting fees. The decrease in salaries and wages was primarily due to the payment of bonus compensation in 2024 for which there were no comparable expenses in 2025, along with greater stock-based compensation in 2024 compared to 2025. The decrease in professional fees was primarily due to lower legal fees in 2025 in connection with the Company’s patent litigation compared to the prior year which had greater legal fees due to trial preparation and the jury trial in the U.S. District Court for the District of Delaware. In addition, services provided by an independent contractor, which were previously included in SG&A for 2024, were classified as R&D expenses in 2025 to better align with the nature of the services performed.

Added

Total R&D expenses were approximately $1,805,000 and $0 for the years ended December 31, 2025 and 2024, respectively. R&D expenses relate to research conducted to develop water treatment products utilizing new sorbent technologies, and increased in 2025 compared to the prior year as the Company had not incurred any research related costs during 2024. The Company began incurring research and development costs when the lab equipment at the Company’s labs was placed into service.

Removed

Operating expenses consisted of selling, general and administrative expenses (“SG&A”) and an impairment loss of $43,000 in 2024 and SG&A and an impairment loss of approximately $220,000 in 2023. SG&A expenses were approximately $14,216,000 and $14,207,000 for the years ended December 31, 2024 and 2023, respectively. Although total SG&A expenses were largely unchanged in 2024 compared to the prior year, there were significant variances in individual categories. Increases in salaries and wages, including bonus compensation and engagement of new senior personnel, increases in Board fees and increased stock-based compensation, were largely offset by reduced professional fees in 2024 compared to 2023. The decrease in professional fees was mainly due to two settlement agreements reached in the fourth quarter of 2023 with various defendants in our patent litigation. These agreements led to significant legal fees paid in 2023 to the patent litigation firm handling the cases, with no comparable expenses incurred in 2024.

Reworded

Our operating loss was approximately $7,158,000$3,030,000 and $8,973,000 (as restated)$7,158,000 for the years ended December 31, 20242025 and 2023,2024, respectively. Such decrease in operating loss was primarily due to our increased grosslicense profitfee revenue in 20242025 compared to 20232024 coupled with a decrease in total operating expenses remainingduring relatively2025 unchangedas fromdiscussed year to year.above.

Added

During the years ended December 31, 2025 and 2024, we had total other income of $74,000 in 2025 compared to total other expense of $3,933,000 in 2024.

Removed

During the years ended December 31, 2024 and 2023, we had income from legal claims of $0 and approximately $27,608,000, respectively. The income from legal claims in 2023 consisted of two settlement agreements reached in the fourth quarter of 2023 with various defendants in our patent litigation.

Reworded

Interest expense related to the financing of capital was approximately $267,000$14,000 and $1,362,000$267,000 for the years ended December 31, 20242025 and 2023,2024, respectively. The approximate breakdown of interest expense for the years ended December 31, 20242025 and 20232024 is as follows:

Reworded

LossGain or loss on change in fair value of profit share liability werewas a gain of approximately $6,000 and loss of approximately $3,959,000 and $11,210,000 for the years ended December 31, 20242025 and 2023,2024, respectively. The change is primarily attributed to the modification of the terms of the profit share liability (see Note 87 to the consolidated financial statements for the year ended December 31, 2025).

Reworded

Net Income (Loss)

Reworded

For the year ended December 31, 2024,2025, we had a net loss of approximately $10,802,000$3,026,000, comparedan toimprovement from a net incomeloss of approximately $5,668,000 (as restated)$10,802,000 for the year ended December 31, 2023.2024. SuchThis changeimprovement was primarily due to noany income from legal claimsincrease in 2024license fee revenue in 2025 compared to $27,608,000 in 2023, offset by an increase in gross profit in 2024 compared to 2023,2024, and a decrease in the loss on change in fair value of profit share recognized in 2024 compared to 2023.SG&A.

Reworded

Liquidity and Capital ResourceResources

Reworded

We had approximately $3,456,000$2,245,000 in cash on our balance sheet at December 31, 20242025 compared to approximately $20,940,000$3,456,000 at December 31, 2023.2024. Total current assets were approximately $5,004,000 and total current liabilities were approximately $10,740,000 at December 31, 2025, resulting in a working capital deficiency of approximately $5,737,000. This compares to total current assets of approximately $6,099,000 and total current liabilities wereof approximately $8,806,000 at December 31, 2024, resulting in a working capital deficiency of approximately $2,707,000. This compares to total current assets of approximately $24,995,000 (as restated) and total current liabilities of approximately $2,183,000 at December 31, 2023, resulting in working capital of approximately $21,812,000 (as restated). Our accumulated deficit was approximately $72.8 million at December 31, 2024 compared to $62.0 million (as restated) at December 31, 2023. Additionally, we had a net loss in the amount of approximately $10,802,000 and cash used in operating activities of approximately $4,105,000 for the year ended December 31, 2024.

Added

Our accumulated deficit was approximately $75,779,000 at December 31, 2025 compared to $72,753,000 at December 31, 2024. Additionally, we had a net loss in the amount of approximately $3,026,000 and cash used in operating activities of approximately $700,000 for the year ended December 31, 2025.

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What changed in the latest 10-Q

Comparing 10-Q filed 2026-08-13 (period ending 2026-06-30) with 10-Q filed 2026-05-13 (period ending 2026-03-31).

Risk Factors (10-Q Part II, Item 1A)

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The section in the latest 10-Q reads in full:

We are a smaller reporting company as defined by Rule 12b-2 of the Securities Exchange Act of 1934 and are not required to provide the information under this item.

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Management's Discussion & Analysis (MD&A) (10-Q Part I, Item 2)

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4,234 → 4,718words in section

Largest changes (selected automatically by length and topic keywords; quoted verbatim, no commentary)

New text topics: litigation
“Separately, in connection with the consolidated Iowa actions, the Company has entered into agreements with certain utilities and affiliated parties, the most recent of which became effective on May 28, 2026. These agreements resolved disputes with the applicable parties, granted licenses to certain of the Company’s patents and, where applicable, provided for the withdrawal of related IPR proceedings. As a result, those parties have been dismissed from the applicable actions, and all parties participating in the IPR proceedings have withdrawn from those proceedings which have concluded. …”
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New text topics: litigation
“Other income (expense) was approximately $(1,391,000) and $(356,000) for the three months ended June 30, 2026 and 2025, respectively, and $(1,587,000) and $(678,000) for the six months ended June 30, 2026 and 2025, respectively. The increase in net other expenses during the 2026 periods was primarily attributable to the recognition of $(1,250,000) of license and settlement fees during the second quarter of 2026, $750,000 of which is only due under certain circumstances if we receive net proceeds of at least $20.0 million from the Delaware litigation. …”
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New text topics: litigation
“With regard to the 2019 litigation, on December 29, 2025 and following resolution of post-trial motions, the U.S. District Court for the District of Delaware entered final judgment in favor of the Company in the amount of $78,397,157, inclusive of pre-judgment interest. On January 28, 2026, the defendants filed a notice of appeal of the judgment. No stay of execution of the judgment has been obtained, and interest continues to accrue during the pendency of the appeal.”
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Removed text topics: regulation
“On March 12, 2025, the newly appointed EPA administrator under the Trump Administration announced plans to roll back dozens of environmental regulations including the reconsideration of the MATS regulation. On April 8, 2025, President Trump signed a Proclamation exempting certain stationary sources, identified in Annex 1 of the Proclamation, from compliance with the 2024 updated MATS Rule. As set out in the Proclamation, the President’s exemption lasts for a period of two years beyond the updated Rule’s compliance date (i.e., for the period beginning July 8, 2027, and concluding July 8, 2029). …”
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Reworded topics: regulation

Paragraph as it now reads, with added and removed wording marked:

In April 2024, the EPA under the Biden Administration issued the first-ever national, enforceable drinking water standard to protect communities from exposure to harmful PFAS, also known as “forever chemicals”., under the Safe Water Drinking Act. The rule as enacted established legally enforceable MCLs (maximum contaminant levels (“MCLs”) for six PFAS in drinking water: PFOA, PFOS, PFHxS, PFNA, and HFPO-DA as contaminants with individual MCLs, and PFAS mixtures containing at least two or more of PFHxS, PFNA, HFPO-DA, and PFBS using a Hazard Index MCL to account for the combined and co-occurring levels of these PFAS in drinking water. UnderAs originally adopted, the Rulerule as enacted,required public water systems must monitor these PFAS and mustto complete initial monitoring for these PFAS by 2027, followed by ongoing compliance monitoring. Water systems must also provide the public with information onregarding thePFAS levels of these PFAS in their drinking water beginning in 2027.2027, Onand Mayachieve 14,compliance 2025,with the EPAapplicable underMCLs theby new Trump Administration announced the agency will keep the regulations for PFOA and PFOS. As part of this action, the EPA also announced its intent to extend the PFOA and PFOS MCL compliance deadlines to 2031 and establish a federal exemption framework. Additionally, the EPA announced its intent to rescind the regulations and reconsider the regulatory determinations for PFHxS, PFNA, HFPO-DA/GenX), and the Hazard Index mixture of these three PFAS plus PFBS to ensure the determinations and any resulting drinking water regulation follow the SDWA process.2029.
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New text topics: regulation
“On May 14, 2025, the EPA announced that it would retain the national drinking water standards for PFOA and PFOS but intends to extend the compliance deadline for those contaminants from 2029 to 2031 and establish a federal exemption framework. The EPA also announced its intent to rescind the existing regulations for PFHxS, PFNA, HFPO-DA, and the Hazard Index applicable to mixtures of PFHxS, PFNA, HFPO-DA, and PFBS, and to reconsider the underlying regulatory determinations for those substances through a new rulemaking process under the Safe Drinking Water Act. …”
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Reworded

We provide mercury capture solutions for coal-fired power plants driven by our patented two-part Sorbent Enhancement Additive (SEA®) process using a powerful combination of science and engineering. Our leading-edge services have been shown to achieve mercury emissions removal at a significantly lower cost and with less operational impact to coal-fired power plants than other used methods, while maintaining and/or increasing power plant output and preserving the marketability of byproducts for beneficial use. We design systems and materials tailored and formulated specifically to each customer’s coal-fired units. North America is currently the largest market for our emissions technologies. The market for mercury removal from power plant emissions in the United States has largely been driven by federal regulations. The MATS rule, proposed by the U.S. Environmental Protection Agency (“EPA”) in May 2011 and which became effective in April 2012, is intended to reduce air emissions of heavy metals, including Hg, from all major U.S. power plants burning coal or oil, which are the leading source of non-natural mercury emissions in the U.S. Our mercury removal technologies and systems achieve mercury removal levels which meet or exceed the MATS requirements with lower cost and plant systems impacts than typical PAC or BAC sorbent injection systems. Our products have been shown to be successful across a myriad of fuel and system types, tunable to any configuration, and environmentally friendly, allowing for the recycling of fly ash for beneficial use.

Reworded

In April 2023, the EPA issued a proposal to strengthen and update MATS. Such proposal was finalized and published in May 2024 with an effective date of July 8, 2024 which, among other things, strengthensstrengthened and updatesupdated MATS for coal-fired power plants and tightenstightened the emission standard for mercury for existing lignite-fired power plants to a level that is aligned with the mercury standard that other coal-fired power plants have been achieving under MATS.

Removed

On March 12, 2025, the newly appointed EPA administrator under the Trump Administration announced plans to roll back dozens of environmental regulations including the reconsideration of the MATS regulation. On April 8, 2025, President Trump signed a Proclamation exempting certain stationary sources, identified in Annex 1 of the Proclamation, from compliance with the 2024 updated MATS Rule. As set out in the Proclamation, the President’s exemption lasts for a period of two years beyond the updated Rule’s compliance date (i.e., for the period beginning July 8, 2027, and concluding July 8, 2029). During the two-year period these stationary sources identified in Annex 1 are subject to the compliance obligations that they are currently subject to under MATS as the MATS Rule existed prior to the 2024 update. Annex 1 identifies 47 plant owners and over 60 power plants provided such exemption, which list includes a number of our customers.

Reworded

In April 2024, the EPA under the Biden Administration issued the first-ever national, enforceable drinking water standard to protect communities from exposure to harmful PFAS, also known as “forever chemicals”., under the Safe Water Drinking Act. The rule as enacted established legally enforceable MCLs (maximum contaminant levels (“MCLs”) for six PFAS in drinking water: PFOA, PFOS, PFHxS, PFNA, and HFPO-DA as contaminants with individual MCLs, and PFAS mixtures containing at least two or more of PFHxS, PFNA, HFPO-DA, and PFBS using a Hazard Index MCL to account for the combined and co-occurring levels of these PFAS in drinking water. UnderAs originally adopted, the Rulerule as enacted,required public water systems must monitor these PFAS and mustto complete initial monitoring for these PFAS by 2027, followed by ongoing compliance monitoring. Water systems must also provide the public with information onregarding thePFAS levels of these PFAS in their drinking water beginning in 2027.2027, Onand Mayachieve 14,compliance 2025,with the EPAapplicable underMCLs theby new Trump Administration announced the agency will keep the regulations for PFOA and PFOS. As part of this action, the EPA also announced its intent to extend the PFOA and PFOS MCL compliance deadlines to 2031 and establish a federal exemption framework. Additionally, the EPA announced its intent to rescind the regulations and reconsider the regulatory determinations for PFHxS, PFNA, HFPO-DA/GenX), and the Hazard Index mixture of these three PFAS plus PFBS to ensure the determinations and any resulting drinking water regulation follow the SDWA process.2029.

Added

On May 14, 2025, the EPA announced that it would retain the national drinking water standards for PFOA and PFOS but intends to extend the compliance deadline for those contaminants from 2029 to 2031 and establish a federal exemption framework. The EPA also announced its intent to rescind the existing regulations for PFHxS, PFNA, HFPO-DA, and the Hazard Index applicable to mixtures of PFHxS, PFNA, HFPO-DA, and PFBS, and to reconsider the underlying regulatory determinations for those substances through a new rulemaking process under the Safe Drinking Water Act. Until any such rulemaking is finalized, the April 2024 rule remains subject to ongoing administrative and legal developments.

Reworded

As part of this strategic pivot, we have invested in the commissioning of two state-of-the-art laboratory facilities—facilities, one in Pennsylvania and one in North Dakota—Dakota, referred to as our “Design Centers.” The Design Centers are dedicated sites for water treatment innovation and development.development, including but not limited to the development of a carbon reactivation process, referrred to as Carbon RejuvenationTM, focused on the thermal reactivation of spent granular activated carbon (GAC). Together, we believe these facilities represent the only known facilities that have integrated capability in North America to thermally reactivate spent GAC under controlled conditions and subsequently conduct RSSCTs to directly compare reactivated GAC performance against virgin carbon counterparts. This combination allows us to evaluate reactivated GAC as a sustainable and cost-effective alternative to virgin carbon and address key water utility questions including how to optimize media changeout schedules, strategies to reduce operational costs, and provide lab-based validation of treatment performance for PFAS and other contaminants.

Reworded

We previouslyhave commenced multiple patent infringement lawsuits to enforce our proprietary two-part SEA® process for mercury removal from coal-fired power plants. TheseOne actions,action was filed in 2019, and additional actions were filed between 20192024 andto 2025,2025 targetedagainst various operators of coal-fired power plants and refined coal producers whom we allege have willfully infringed our patent rights. The actions filed between 2024 and 2025 have been consolidated in the U.S. District Court for the Southern District of Iowa.

Removed

On December 29, 2025, following resolution of post-trial motions, the U.S. District Court for the District of Delaware entered final judgment in favor of the Company in the amount of $78,397,157, inclusive of pre-judgment interest, in connection with the patent infringement action commenced in 2019. On January 28, 2026, the defendants filed a notice of appeal of the judgment. No stay of execution of the judgment has been obtained, and interest continues to accrue during the pendency of the appeal.

Removed

Separately, the Company has entered into agreements with certain utilities resolving disputes and providing for licenses to certain of the Company’s patents and withdrawal of related proceedings. As a result, those parties have been dismissed from the applicable actions. Two utilities remain in the consolidated Iowa actions.

Reworded

InBetween addition,January and July 2025, certain defendants havein the consolidated Iowa actions filed inter partes review (“IPR”) petitions challenging asserted claims of the Company’sour patents. The U.S. Patent Trial and Appeal Board (“PTAB”) instituted review of certain petitions, and proceedingsin areOctober ongoing.2025 Thethe U.S. District Court for the Southern District of Iowa has stayed the consolidated litigation pending resolution of the IPR proceedings. Other IPR petitions have been denied institution and requests for reconsideration have also been denied.

Added

With regard to the 2019 litigation, on December 29, 2025 and following resolution of post-trial motions, the U.S. District Court for the District of Delaware entered final judgment in favor of the Company in the amount of $78,397,157, inclusive of pre-judgment interest. On January 28, 2026, the defendants filed a notice of appeal of the judgment. No stay of execution of the judgment has been obtained, and interest continues to accrue during the pendency of the appeal.

Added

Separately, in connection with the consolidated Iowa actions, the Company has entered into agreements with certain utilities and affiliated parties, the most recent of which became effective on May 28, 2026. These agreements resolved disputes with the applicable parties, granted licenses to certain of the Company’s patents and, where applicable, provided for the withdrawal of related IPR proceedings. As a result, those parties have been dismissed from the applicable actions, and all parties participating in the IPR proceedings have withdrawn from those proceedings which have concluded. One active case remains with one utility in the consolidated Iowa litigation. On July 23, 2026, the Court in Iowa issued its suggestion of remand that the remaining case be returned in its original court in Missouri for all further proceedings. The Company expects the stay previously issued to be lifted but cannot predict the ultimate outcome of the remaining litigation or the pending appeal of the Delaware judgment.

Removed

The Company cannot predict the ultimate outcome of the pending appeal or IPR proceedings.

Reworded

We generated revenues of approximately $4,240,000$3,791,000 and $3,221,000$3,254,000 for the three months ended MarchJune 31,30, 2026 and 2025, respectively, and approximately $8,031,000 and $6,475,000 for the six months ended June 30, 2026 and 2025, respectively. Such revenues were primarily derived from sorbent product sales which were approximately $4,188,000$3,466,000 and $2,677,000$3,244,000 for the three months ended MarchJune 31,30, 2026 and 2025, respectively and approximately $7,654,000 and $5,921,000 for the six months ended June 30, 2026 and 2025, respectively. Revenues in the mercury emissions market can be dependent on natural gas prices, extreme weather, and the maintenance and downtime requirements of customer plants. The increase in revenues for product sales from the prior year was primarily due to the mix of plants running and an increased demand for coal in connection with our mercury emissions business driven by more extreme weather conditions and higher natural gas prices in the current year compared to the prior year period. Additionally, sales were recognized for the water treatment market in 2026 compared to none in the comparable period of 2025.

Reworded

Licensing revenues were $0 and $0 for the three months ended June 30, 2026 and 2025, respectively and $0 and $525,000 for the threesix months ended MarchJune 31,30, 2026 and 2025, respectively. Such decrease was primarily due to a new licensing agreement entered into in the first quarter of 2025 with a utility that provided for a one time up front license fee, for which there were no comparable transactions in the first quartersix months of 2026.

Reworded

Other revenues, consisting of demonstrations, consulting and services revenue, and equipment sales, were approximately $52,000$324,000 and $19,000$9,000, respectively for the three months ended MarchJune 31,30, 2026 and 2025 and $376,000 and $28,000 for the six months ended June 30, 2026 and 2025, respectively. Other revenues have not been material in relation to total revenues.

Reworded

Cost of sales were approximately $2,857,000$2,758,000 and $1,987,000$2,286,000 for the three months ended MarchJune 31,30, 2026 and 2025, respectively, and approximately $5,615,000 and $4,272,000 for the six months ended June 30, 2026 and 2025, respectively. The increase in cost of sales of approximately $870,000$1,343,000 was primarily attributable to increased product sales in the first threesix months of 2026 compared to the prior year period, together with a change in the mix of products sold in the first threesix months of 2026 compared to the prior year period.

Reworded

Gross profit was approximately $1,383,000$1,033,000 and $1,234,000$968,000 for the three months ended MarchJune 31,30, 2026 and 2025, respectively.respectively, and approximately $2,415,000 and $2,202,000 for the six months ended June 30, 2026 and 2025. The increase in gross profit of approximately $149,000$213,000 was primarily driven by greater product sales in the first threesix months of 2026. This increase was partially offset by a shift in revenue mix as licensing revenues, which typically carry higher margins, were higher in the threesix months ended MarchJune 31,30, 2025.2025 compared to none in the six months ended June 30, 2026.

Reworded

We continue to incur significant expenses as we invest in the expansion of the water division. Operating expenses consisted of selling, general and administrative expenses (“SG&A”) and research and development expenses (“R&D”) in 2026 and 2025. Operating expenses decreasedincreased in the threesix months ended MarchJune 31,202630,2026 compared to the prior year period. SG&A expenses were approximately $1,981,000$2,068,000 and $2,171,000$1,698,000 for the three months ended MarchJune 31,30, 2026 and 2025, respectively, and approximately $4,049,000 and $3,869,000 for the six months ended June 30, 2026 and 2025, respectively. Total SG&A expenses decreasedincreased in the threesix months ended MarchJune 31,30, 2026 compared to the prior year period, as a result of variances in individual categories. This includes decreasesincreases in professional fees, along with greater stock-basedinvestor compensationrelations costs in the threesix months ended MarchJune 31,30, 20252026 compared to the comparable period of the currentprevious year. The decreaseincrease in professional fees was primarily due to lowerincreases legal fees in 2026 and the increase in investor relations fees was primarily due to increased costs associated with the Company’s NYSE American uplisting completed in the first quarter of 2026.

Reworded

Total R&D expenses were approximately $551,000$587,000 and $407,000$455,000 for the three months ended MarchJune 31,30, 2026 and 2025, respectively, and $1,138,000 and $862,000 for the six months ended June 30, 2026 and 2025, respectively. R&D expenses relate to research conducted to develop water treatment products utilizing new sorbent technologies, and increased in in the threesix months ended MarchJune 31,30, 2026 compared to the prior period as the Company did not have all of its R&D strategy implemented at the beginning of 2025. The Company began incurring research and development costs when the lab equipment at the Company’s labs was placed into service.

Reworded

Our operating loss was approximately $1,149,000$1,623,000 and $1,343,000$1,185,000 for the three months ended MarchJune 31,30, 2026 and 2025, respectively, and approximately $2,772,000 and $2,528,000 for the six months ended June 30, 2026 and 2025, respectively. SuchThis decreaseincrease in operating loss was primarily dueattributable to ourhigher SG&A expenses and increased revenues in the first three months of 2026 compared to prior year period coupled with a decrease in total operatingR&D expenses during the first three months of 2026 asperiods, discussedwhich above.more than offset the increased revenues and higher gross profit compared to the prior year periods.

Added

Other income (expense) was approximately $(1,391,000) and $(356,000) for the three months ended June 30, 2026 and 2025, respectively, and $(1,587,000) and $(678,000) for the six months ended June 30, 2026 and 2025, respectively. The increase in net other expenses during the 2026 periods was primarily attributable to the recognition of $(1,250,000) of license and settlement fees during the second quarter of 2026, $750,000 of which is only due under certain circumstances if we receive net proceeds of at least $20.0 million from the Delaware litigation. Net other expense also reflected a loss on the change in fair value of the profit share liability, partially offset by increased interest income resulting from higher average cash balances following our February 2026 registered offering.

Removed

During the three months ended March 31, 2026 and 2025, we had total other expenses of $196,000 in 2026 compared to total other expenses of $322,000 in 2025.

Reworded

Interest income was approximately $50,000$116,000 and $31,000$20,000 for the three months ended MarchJune 31,30, 2026 and 2025.2025, respectively, and $166,000 and $51,000 for the six months ended June 30, 2026 and 2025, respectively.

Reworded

Loss on change in fair value of profit share liability was approximately $246,000$257,000 and loss of approximately $353,000$376,000 for the three months ended MarchJune 31,30, 2026 and 2025, respectively, and $503,000 and $729,000 for the six months ended June 30, 2026 and 2025, respectively.

Added

License and settlement fees were approximately $(1,250,000) and $0 for the three months ended June 30, 2026 and 2025, respectively, and $(1,250,000) and $0 for the six months ended June 30, 2026 and 2025, respectively.

Added

For the three months ended June 30, 2026, we had a net loss of approximately $3,017,000 compared to approximately $1,542,000 for the three months ended June 30, 2025. For the six months ended June 30, 2026, we had a net loss of approximately $4,363,000 compared to approximately $3,221,000 for the six months ended June 30, 2025. The increase in net loss was primarily attributable to higher selling, general and administrative expenses, increased research and development expenses and higher net other expense, which more than offset the increases in revenues and gross profit during the 2026 periods.

Removed

For the three months ended March 31, 2026, we had a net loss of approximately $1,346,000, an improvement from a net loss of $1,679,000 for the three months ended March 31, 2025. This improvement was primarily due to any increase in revenues in 2026 compared to 2025, and a decrease in expenses.

Reworded

We had approximately $14,748,000$11,836,000 in cash at MarchJune 31,30, 2026, compared to approximately $2,245,000 at December 31, 2025. Total current assets were approximately $17,749,000$15,755,000 and total current liabilities were approximately $10,029,000$11,080,000 at MarchJune 31,30, 2026, resulting in working capital of approximately $7,720,000.$4,675,000. This compares to total current assets of approximately $5,004,000 and total current liabilities of approximately $10,740,000 at December 31, 2025, resulting in a working capital deficiency of approximately $5,737,000. The increases in cash and working capital were primarily attributable to proceeds from the Company’s public offering completed in the first quarter of 2026, as described below. Our accumulated deficit was approximately $77,125,000$80,142,000 at MarchJune 31,30, 2026 compared to $75,779,000 at December 31, 2025.

Reworded

Total assets were approximately $21,395,000$19,415,000 at MarchJune 31,30, 2026 versus approximately $9,238,000 at December 31, 2025. The change in total assets is primarily attributable to an approximate $12,503,000$10,177,000 increase in cash primarily due to the proceeds from the Company’s public offering completed in the first quarter of 2026, offset by deferred offering costs recognized in 2025 of $481,000 compared to no deferred offering costs in the first quarter of 2026, together with other changes in asset categories consisting of smaller increases and decreases that were not individually significant.

Reworded

Total liabilities were approximately $10,227,000$11,264,000 at MarchJune 31,30, 2026 versus approximately $10,953,000 at December 31, 2025. The change in total liabilities is primarily attributable to an approximate $984,000$503,000 increase in the profit share liability offset by an approximate $179,000 decrease in accounts payable and accrued expenses.

Reworded

Net cash used in operating activities was approximately $2,207,000$4,997,000 for the threesix months ended MarchJune 31,30, 2026 compared to approximately $254,000$1,986,000 for the threesix months ended MarchJune 31,30, 2025. The increase in net cash used in operating activities was primarily attributable to the following: (i) changes in accounts receivable, which used approximately $133,000$523,000 of cash in 2026 compared to providingusing approximately $558,000$318,000 in 2025; (iii) changes in accounts payable and accrued expenses, which used approximately $984,000$179,000 in cash in 2026 compared to providing approximately $304,000$743,000 of cash in 2025; (iv) changes in prepaid expenses which used approximately $618,000 in cash in 2026 compared to providing approximately $72,000 of cash in 2025 and (ivv) certain other changes in operating assets and liabilities, including accrued salaries, inventory, and prepaid expenses and other assets.

Reworded

We had net cash used in investing activities of $0$122,000 for the threesix months ended MarchJune 31,30, 2026 compared to cash used in investing activities of approximately $14,000$16,000 for the threesix months ended MarchJune 31,30, 2025 for the purchase of lab equipment.

Reworded

Net cash provided by financing activities was $14,710,000 for the threesix months ended MarchJune 31,30, 2026 compared to no cash provided or used in financing activities for the threesix months ended MarchJune 31,30, 2025. During the threesix months ended MarchJune 31,30, 2026, we completed a public offering of 6,850,000 shares of our common stock, generating net proceeds of approximately $14,229,000.

Reworded

Our critical accounting policies and estimated are discussed in our Annual Report on Form 10-K for the year ended December 31, 2025, and there have been no material changes to such policies or estimates during the threesix months ended MarchJune 31,30, 2026.

Reworded

The following table shows our reconciliation of net loss to adjusted EBITDA for the threesix months ended MarchJune 31,30, 2026 and 2025, respectively:

BCHT insider buying and selling (Form 4)

Since 2026-04-11, insiders reported open-market purchases in 0 Form 4 filings and open-market sales in 0 filings. Totals add up every open-market (code P and S) line in those filings, using the prices reported in the filings. Awards, option exercises, tax withholding and gifts are listed below but not counted.

No Form 4 stock transactions in this period.

Well-known investors holding BCHT (13F)

InvestorQuarterSharesReported value% of their 13FChange vs prior quarter
Citadel Advisors (Ken Griffin) COM SHS2026-06-3041,385$84.8K0.0%Reduced 19%

13F reports are filed up to 45 days after quarter end and show long U.S. equity positions only; options positions are omitted here.

Coming soon: email alerts when BCHT files, watchlists and downloadable comparisons.