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Form SCHEDULE 13G Birchtech Corp. Filed by: LYTTON LAURENCE W

Mon, 05 Oct 2026 19:49:00 -0400

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Birchtech Appoints Charlie Cooper as Business Development Manager, Strengthening Its Commitment to Rural and Small Water Systems

Thu, 01 Oct 2026 08:31:00 -0400

CORSICANA, Texas, Oct. 01, 2026 (GLOBE NEWSWIRE) -- Birchtech Corp. (NYSE American: BCHT) (TSX: BCHT) (“Birchtech” or the “Company”), a leader in specialty activated carbon technologies for sustainable air and water treatment, today announced the appointment of Charlie Cooper as Business Development Manager, effective October 1, 2026. In this role, Mr. Cooper will lead efforts to develop and expand Birchtech’s relationships with municipalities, public service districts, and utility operators, with a focus on rural and small water systems.

Mr. Cooper brings 21 years of hands-on water treatment experience, spanning industrial mine water discharge to municipal

Birchtech Appoints Charlie Cooper as Business Development Manager, Strengthening Its Commitment to Rural and Small Water Systems

Thu, 01 Oct 2026 08:31:00 -0400

Mr. Cooper brings 21 years of hands-on water treatment experience, spanning industrial mine water discharge to municipal

Birchtech Appoints Charlie Cooper as Business Development Manager, Strengthening Its Commitment to Rural and Small Water Systems

Thu, 01 Oct 2026 08:31:00 -0400

Mr. Cooper brings 21 years of hands-on water treatment experience, spanning industrial mine water discharge to municipal

Birchtech Appoints Charlie Cooper as Business Development Manager, Strengthening Its Commitment to Rural and Small Water Systems

Thu, 01 Oct 2026 08:31:00 -0400

Mr. Cooper brings 21 years of hands-on water treatment experience, spanning industrial mine water discharge to municipal

Birchtech to Participate in Upcoming Investor Conferences

Tue, 22 Sep 2026 08:31:00 -0400

CORSICANA, Texas, Sept. 22, 2026 (GLOBE NEWSWIRE) -- Birchtech Corp. (NYSE American: BCHT) (TSX: BCHT) (“Birchtech” or the “Company”), a leader in specialty activated carbon technologies for sustainable air and water treatment, today announced that management will participate in two upcoming investor conferences: Gabelli Funds’ 4th Annual PFAS Symposium and Noble Capital Markets’ October 2026 Emerging Growth Virtual Equity Conference.

Richard MacPherson, President and CEO of Birchtech, is scheduled to deliver a corporate presentation at each event and will host one-on-one meetings with institutional investors at the Noble Capital Markets conference, as follows:

Gabelli

Birchtech to Participate in Upcoming Investor Conferences

Tue, 22 Sep 2026 08:31:00 -0400

CORSICANA, Texas, Sept. 22, 2026 (GLOBE NEWSWIRE) -- Birchtech Corp. (NYSE American: BCHT) (TSX: BCHT) (“Birchtech” or the “Company”), a leader in specialty activated carbon technologies for sustainable air and water treatment, today announced that management will participate in two upcoming investor conferences: Gabelli Funds’ 4th Annual PFAS Symposium and Noble Capital Markets’ October 2026 Emerging Growth Virtual Equity Conference.

Richard MacPherson, President and CEO of Birchtech, is scheduled to deliver a corporate presentation at each event and will host one-on-one meetings with institutional investors at the Noble Capital Markets conference, as follows:

Gabelli

Birchtech to Participate in Upcoming Investor Conferences

Tue, 22 Sep 2026 08:31:00 -0400

CORSICANA, Texas, Sept. 22, 2026 (GLOBE NEWSWIRE) -- Birchtech Corp. (NYSE American: BCHT) (TSX: BCHT) (“Birchtech” or the “Company”), a leader in specialty activated carbon technologies for sustainable air and water treatment, today announced that management will participate in two upcoming investor conferences: Gabelli Funds’ 4th Annual PFAS Symposium and Noble Capital Markets’ October 2026 Emerging Growth Virtual Equity Conference.

Richard MacPherson, President and CEO of Birchtech, is scheduled to deliver a corporate presentation at each event and will host one-on-one meetings with institutional investors at the Noble Capital Markets conference, as follows:

Gabelli

Birchtech to Participate in Upcoming Investor Conferences

Tue, 22 Sep 2026 08:31:00 -0400

CORSICANA, Texas, Sept. 22, 2026 (GLOBE NEWSWIRE) -- Birchtech Corp. (NYSE American: BCHT) (TSX: BCHT) (“Birchtech” or the “Company”), a leader in specialty activated carbon technologies for sustainable air and water treatment, today announced that management will participate in two upcoming investor conferences: Gabelli Funds’ 4th Annual PFAS Symposium and Noble Capital Markets’ October 2026 Emerging Growth Virtual Equity Conference.

Richard MacPherson, President and CEO of Birchtech, is scheduled to deliver a corporate presentation at each event and will host one-on-one meetings with institutional investors at the Noble Capital Markets conference, as follows:

Gabelli

Birchtech to Participate in Upcoming Investor Conferences

Thu, 10 Sep 2026 08:31:00 -0400

Management to Participate in Lake Street Capital Markets' 10th Annual Best Ideas Growth Conference and the H.C. Wainwright 28th Annual Global Investment Conference in September 2026

CORSICANA, Texas, Sept. 10, 2026 (GLOBE NEWSWIRE) -- Birchtech Corp. (NYSE American: BCHT) (TSX: BCHT) (“Birchtech” or the “Company”), a leader in specialty activated carbon technologies for sustainable air and water treatment, today announced that management will participate in two upcoming investor conferences: Lake Street Capital Markets’ 10th Annual Best Ideas Growth Conference and the H.C. Wainwright 28th Annual Global Investment Conference.

Richard MacPherson, President and CEO

Birchtech to Participate in Upcoming Investor Conferences

Thu, 10 Sep 2026 08:31:00 -0400

Management to Participate in Lake Street Capital Markets' 10th Annual Best Ideas Growth Conference and the H.C. Wainwright 28th Annual Global Investment Conference in September 2026

CORSICANA, Texas, Sept. 10, 2026 (GLOBE NEWSWIRE) -- Birchtech Corp. (NYSE American: BCHT) (TSX: BCHT) (“Birchtech” or the “Company”), a leader in specialty activated carbon technologies for sustainable air and water treatment, today announced that management will participate in two upcoming investor conferences: Lake Street Capital Markets’ 10th Annual Best Ideas Growth Conference and the H.C. Wainwright 28th Annual Global Investment Conference.

Richard MacPherson, President and CEO

Birchtech to Participate in Upcoming Investor Conferences

Thu, 10 Sep 2026 08:31:00 -0400

Management to Participate in Lake Street Capital Markets' 10th Annual Best Ideas Growth Conference and the H.C. Wainwright 28th Annual Global Investment Conference in September 2026

CORSICANA, Texas, Sept. 10, 2026 (GLOBE NEWSWIRE) -- Birchtech Corp. (NYSE American: BCHT) (TSX: BCHT) (“Birchtech” or the “Company”), a leader in specialty activated carbon technologies for sustainable air and water treatment, today announced that management will participate in two upcoming investor conferences: Lake Street Capital Markets’ 10th Annual Best Ideas Growth Conference and the H.C. Wainwright 28th Annual Global Investment Conference.

Richard MacPherson, President and CEO

Birchtech to Participate in Upcoming Investor Conferences

Thu, 10 Sep 2026 08:31:00 -0400

Management to Participate in Lake Street Capital Markets' 10th Annual Best Ideas Growth Conference and the H.C. Wainwright 28th Annual Global Investment Conference in September 2026

CORSICANA, Texas, Sept. 10, 2026 (GLOBE NEWSWIRE) -- Birchtech Corp. (NYSE American: BCHT) (TSX: BCHT) (“Birchtech” or the “Company”), a leader in specialty activated carbon technologies for sustainable air and water treatment, today announced that management will participate in two upcoming investor conferences: Lake Street Capital Markets’ 10th Annual Best Ideas Growth Conference and the H.C. Wainwright 28th Annual Global Investment Conference.

Richard MacPherson, President and CEO

Birchtech starts $5M share buyback program on NYSE American

Wed, 09 Sep 2026 08:31:12 -0400

Birchtech Corp. (NYSE American: BCHT, TSX: BCHT) announced it will begin repurchasing shares of its common stock under a $5.0 million buyback program that its board of directors authorized and announced on March 19, 2025.

According to a press release, purchases are expected to commence on or after September 14, 2026, and may continue through December 31, 2026, unless completed, suspended, or discontinued earlier. Repurchases will be conducted through open market transactions on the NYSE American at prevailing market prices, subject to market conditions, regulatory requirements, and other factors.

The company said it intends to fund any purchases from available cash. As

Birchtech Announces Commencement of Share Repurchase Program

Wed, 09 Sep 2026 08:31:00 -0400

Company to Begin Repurchasing Common Stock Under Previously Authorized $5.0 Million Program

CORSICANA, Texas, Sept. 09, 2026 (GLOBE NEWSWIRE) -- Birchtech Corp. (NYSE American: BCHT) (TSX: BCHT) (“Birchtech” or the “Company”), a leader in specialty activated carbon technologies for sustainable air and water treatment, today announced that it intends to commence purchases of its common stock under the $5.0 million share repurchase program authorized by its Board of Directors and announced on March 19, 2025.

Repurchases under the program may be made from time to time in open market transactions through the facilities

Birchtech Announces Commencement of Share Repurchase Program

Wed, 09 Sep 2026 08:31:00 -0400

Company to Begin Repurchasing Common Stock Under Previously Authorized $5.0 Million Program

CORSICANA, Texas, Sept. 09, 2026 (GLOBE NEWSWIRE) -- Birchtech Corp. (NYSE American: BCHT) (TSX: BCHT) (“Birchtech” or the “Company”), a leader in specialty activated carbon technologies for sustainable air and water treatment, today announced that it intends to commence purchases of its common stock under the $5.0 million share repurchase program authorized by its Board of Directors and announced on March 19, 2025.

Repurchases under the program may be made from time to time in open market transactions through the facilities

Birchtech Announces Commencement of Share Repurchase Program

Wed, 09 Sep 2026 08:31:00 -0400

Company to Begin Repurchasing Common Stock Under Previously Authorized $5.0 Million Program

CORSICANA, Texas, Sept. 09, 2026 (GLOBE NEWSWIRE) -- Birchtech Corp. (NYSE American: BCHT) (TSX: BCHT) (“Birchtech” or the “Company”), a leader in specialty activated carbon technologies for sustainable air and water treatment, today announced that it intends to commence purchases of its common stock under the $5.0 million share repurchase program authorized by its Board of Directors and announced on March 19, 2025.

Repurchases under the program may be made from time to time in open market transactions through the facilities

Birchtech Announces Commencement of Share Repurchase Program

Wed, 09 Sep 2026 08:31:00 -0400

Company to Begin Repurchasing Common Stock Under Previously Authorized $5.0 Million Program

CORSICANA, Texas, Sept. 09, 2026 (GLOBE NEWSWIRE) -- Birchtech Corp. (NYSE American: BCHT) (TSX: BCHT) (“Birchtech” or the “Company”), a leader in specialty activated carbon technologies for sustainable air and water treatment, today announced that it intends to commence purchases of its common stock under the $5.0 million share repurchase program authorized by its Board of Directors and announced on March 19, 2025.

Repurchases under the program may be made from time to time in open market transactions through the facilities

Birchtech reaches non-binding deal to acquire activated carbon firm

Tue, 08 Sep 2026 08:31:32 -0400

Birchtech Corp. (NYSE American: BCHT) (TSX: BCHT) announced it has reached a non-binding agreement in principle to acquire substantially all of the assets of an unnamed privately held specialty activated carbon company, according to a press release.

The proposed transaction is intended to provide Birchtech with commercial-scale processing and manufacturing capabilities to support its "Carbon Rejuvenation" technology, a lower-temperature thermal treatment process for reusing spent activated carbon in water treatment applications.

The target company's operations would add facilities in North Dakota and Pennsylvania to Birchtech's existing Design Center footprint, based in Corsicana, Texas.

The term sheet signed by both parties is non-binding, except

Birchtech Reaches Agreement in Principle for Strategic Acquisition of Specialty Activated Carbon Company

Tue, 08 Sep 2026 08:31:00 -0400

Acquisition Expected to Establish Birchtech’s Initial Commercial-Scale Carbon Rejuvenation™ Capabilities

CORSICANA, Texas, Sept. 08, 2026 (GLOBE NEWSWIRE) -- Birchtech Corp. (NYSE American: BCHT) (TSX:BCHT) (“Birchtech” or the “Company”), a leader in specialty activated carbon technologies for sustainable air and water treatment, today announced that it has reached an agreement in principle to acquire substantially all of the assets of a privately- held specialty activated carbon company.

The proposed acquisition is intended to provide Birchtech with its initial commercial-scale processing and manufacturing capabilities, accelerating the Company’s move into thermal reactivation with its “Carbon Rejuvenation”

Birchtech Reaches Agreement in Principle for Strategic Acquisition of Specialty Activated Carbon Company

Tue, 08 Sep 2026 08:31:00 -0400

Acquisition Expected to Establish Birchtech’s Initial Commercial-Scale Carbon Rejuvenation™ Capabilities

CORSICANA, Texas, Sept. 08, 2026 (GLOBE NEWSWIRE) -- Birchtech Corp. (NYSE American: BCHT) (TSX:BCHT) (“Birchtech” or the “Company”), a leader in specialty activated carbon technologies for sustainable air and water treatment, today announced that it has reached an agreement in principle to acquire substantially all of the assets of a privately- held specialty activated carbon company.

The proposed acquisition is intended to provide Birchtech with its initial commercial-scale processing and manufacturing capabilities, accelerating the Company’s move into thermal reactivation with its “Carbon Rejuvenation”

Birchtech Reaches Agreement in Principle for Strategic Acquisition of Specialty Activated Carbon Company

Tue, 08 Sep 2026 08:31:00 -0400

Acquisition Expected to Establish Birchtech’s Initial Commercial-Scale Carbon Rejuvenation™ Capabilities

CORSICANA, Texas, Sept. 08, 2026 (GLOBE NEWSWIRE) -- Birchtech Corp. (NYSE American: BCHT) (TSX:BCHT) (“Birchtech” or the “Company”), a leader in specialty activated carbon technologies for sustainable air and water treatment, today announced that it has reached an agreement in principle to acquire substantially all of the assets of a privately- held specialty activated carbon company.

The proposed acquisition is intended to provide Birchtech with its initial commercial-scale processing and manufacturing capabilities, accelerating the Company’s move into thermal reactivation with its “Carbon Rejuvenation”

Birchtech Reaches Agreement in Principle for Strategic Acquisition of Specialty Activated Carbon Company

Tue, 08 Sep 2026 08:31:00 -0400

Acquisition Expected to Establish Birchtech’s Initial Commercial-Scale Carbon Rejuvenation™ Capabilities

CORSICANA, Texas, Sept. 08, 2026 (GLOBE NEWSWIRE) -- Birchtech Corp. (NYSE American: BCHT) (TSX:BCHT) (“Birchtech” or the “Company”), a leader in specialty activated carbon technologies for sustainable air and water treatment, today announced that it has reached an agreement in principle to acquire substantially all of the assets of a privately- held specialty activated carbon company.

The proposed acquisition is intended to provide Birchtech with its initial commercial-scale processing and manufacturing capabilities, accelerating the Company’s move into thermal reactivation with its “Carbon Rejuvenation”

Gabelli To Host 4th Annual PFAS Symposium

Mon, 24 Aug 2026 08:00:00 -0400

PALM BEACH, Fla., Aug. 24, 2026 (GLOBE NEWSWIRE) -- Gabelli is hosting its 4^th Annual PFAS Symposium on September 24th, 2026, in New York City. The symposium will feature discussions with leading companies and organizations across the PFAS ecosystem, with an emphasis on remediation, regulation, current trends, and business fundamentals.

For those who cannot attend in person, the symposium will also be available via webcast. Investors should contact their relationship person for more information or click on the link below to register.

For additional information and to register, please visit our website.

Gabelli To Host 4th Annual PFAS Symposium

Mon, 24 Aug 2026 08:00:00 -0400

PALM BEACH, Fla., Aug. 24, 2026 (GLOBE NEWSWIRE) -- Gabelli is hosting its 4^th Annual PFAS Symposium on September 24th, 2026, in New York City. The symposium will feature discussions with leading companies and organizations across the PFAS ecosystem, with an emphasis on remediation, regulation, current trends, and business fundamentals.

For those who cannot attend in person, the symposium will also be available via webcast. Investors should contact their relationship person for more information or click on the link below to register.

For additional information and to register, please visit our website.