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Birchtech Corp.

For the period ended Dec 31, 2025. Filed Mar 31, 2026.

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About this filing

A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2025 · Filed Mar 31, 2026

BCHT$1.14-0.9%Stored close · as of Nov 9, 2026

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Item 1B. Unresolved Staff Comments

We are a smaller reporting company as defined by Rule 12b-2 of the Securities Exchange Act of 1934 and are not required to provide the information under this item.

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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.