X0202 SCHEDULE 13G 0001105806 XXXXXXXX LIVE Common Stock 09/29/2026 0000728385 Birchtech Corp. 59833H200 1810 JESTER DRIVE CORSICANA TX 75109 Rule 13d-1(c) Laurence W. Lytton X1 980513 400000 980513 400000 1380513 5.2 IN Percentage calculated based on 26,305,966 shares of Common Stock outstanding as of August 13, 2026, as reported in the Form 10-Q filed by the Issuer for the quarter ended June 30, 2026. Birchtech Corp. 1310 Jester Drive, Corsicana, TX 75109 Laurence W. Lytton 467 Central Park West New York, NY 10025 United States Y 1,380,513 5.2 980,513 400,000 980,513 400,000 Y Y Y Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11. Laurence W. Lytton /s/ Laurence W. Lytton 10/05/2026