v3.25.4
Submission
Feb. 12, 2026
Submission [Line Items]  
Central Index Key 0000728385
Registrant Name Birchtech Corp.
Registration File Number 333-292701
Form Type S-1
Submission Type S-1/A
Fee Exhibit Type EX-FILING FEES
Offering Table N/A
Offset Table N/A N/A
Combined Prospectus Table N/A N/A