DEFA14A

Proxy Materials

Birchtech Corp. Filed 2021-05-21 Acc 0001477932-21-003443

Documents 1

DEFA14A Proxy Materials , meec_defa14a.htm

Around this filing

2022-02-07 DEFA14A Proxy Materials
2021-05-21 DEFA14A Proxy Materials
2021-05-18 8-K Executive or director change
2021-05-17 10-Q Quarterly Report

Link to a passage

External

SEC EDGAR (opens in new tab)