Birchtech Corp. - Officer/Director Filing

This filing reports on Michael David Mioska, Chief Financial Officer of Birchtech Corp., and his ownership of company securities. The report is filed under document type 3, indicating initial beneficial ownership. Mr. Mioska, with reporting owner CIK 0002133581, resides in Delta, Canada. The ownership details were reported as of May 1, 2026, with the signature date on May 6, 2026. The filing specifies that no securities were owned by the reporting individual at the time, as indicated by the 'noSecuritiesOwned' field being set to '1'.