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Companies / Health Care / Birchtech Corp.
BCHT

Birchtech Corp.

Health CareMedical Instruments
Ticker BCHTCORSICANA, TXFiscal year ends DecemberBook value per share $0.34Diluted shares 24.1M

Birchtech Corp. (NYSE: BCHT) provides specialty activated carbon technologies for air and water purification. Its mercury-emissions business supplies coal-fired power plants with tailored sorbents, systems and services based on its SEA® process, designed to capture mercury from flue gas; 16 U.S. electric generating… From the company’s description.

Over the twelve months to Jun 30, 2026, Birchtech Corp. reported revenue of $19.18M, up 13.1% from a year earlier, and a net loss of $4.17M. Its operating margin was −17.1%, and operations used $3.71M in cash. In fiscal 2025, it reported revenue of $17.63M, up 1.3% from fiscal 2024, and a net loss of $3.03M.

Fiscal year 2025 · ends 12-31Changes are against fiscal 2024The amber dot is the latest twelve months, to 2026-06-30
Sales & profitability
$17.63MFY2025
+1.3% year over year
Last 12 mo $19.18M
-17.19%FY2025
+23.9 percentage points
Last 12 mo -17.07%
$-3.03MFY2025
+72.0% year over year
Last 12 mo $-4.17M
173.61%FY2025
+1076.2 percentage points
Last 12 mo -51.13%
Cash & financing
$-0.70MFY2025
+82.9% year over year
Last 12 mo $-3.71M
$-0.73MFY2025
+85.2% year over year
Last 12 mo $-3.85M
-0.10FY2025
Was 0.14× a year earlier
Last 12 mo 0.02
19.3MFY2025
−79.7% year over year
Last 12 mo 24.1M

Margins and return on equity change in ; everything else in percent. Fewer shares and less debt are shown plainly, not as bad news — it depends what you make of buybacks. Dotted labels explain each measure. is shown separately from the annual figures.

What Birchtech Corp. does

In the company’s own words

Birchtech Corp. (NYSE: BCHT) provides specialty activated carbon technologies for air and water purification. Its mercury-emissions business supplies coal-fired power plants with tailored sorbents, systems and services based on its SEA® process, designed to capture mercury from flue gas; 16 U.S. electric generating units used the technology and purchased its product as of December 31, 2025. The company is also developing water-treatment products and services for municipal and industrial customers, including shaped activated carbon, testing and consulting, thermal reactivation of spent granular activated carbon, and SEA-IX™ ion-exchange resins for power-plant and water-treatment systems. Birchtech operates across these mercury-emissions and water-treatment activities, with the water business introduced in 2024. Its mercury-emissions business is also known as ME2C®. The company had 20 employees, including full-time and part-time staff, as of December 31, 2025. Its website is www.birchtech.com.

Company details
Sector
Health Care
Industry (SIC)
Medical Instruments
Headquarters
CORSICANA, TX
Fiscal year end
December
CIK
728385
SIC
3829

Financial performance, year by year

Fiscal 2011–2025 · USD
$-21.81M$-7.04M$7.73M$22.50M$37.27M201120122013201420152016201720182019202020212022202320242025Last 12 moLast 12 monthsLast 12 months

The full income statement, balance sheet and cash flow for each of these years — every figure traceable to its filing — is on the Financials tab with a free account.

Ownership

Who owns Birchtech Corp. — and what changed

Funds as of 2026Q2 · superinvestors as of 2026-06-30

5
funds hold it
0 of 35
superinvestors hold it
$3.51M
held by funds, at market
6.5%
of shares held by funds

Largest fund holders · Birchtech Corp.’s weight in each

Heartland Value Fund
HRTVX · HEARTLAND GROUP INC.
—of fund net assets
VANGUARD TOTAL STOCK MARKET INDEX FUND
VTI · VANGUARD INDEX FUNDS
0.00%of fund net assets
VANGUARD EXTENDED MARKET INDEX FUND
VXF · VANGUARD INDEX FUNDS
0.00%of fund net assets
iShares Micro-Cap ETF
IWC · iShares Trust
0.01%of fund net assets
0.00%of fund net assets

Fund ownership is a floor, not a census — pensions, insurers and people holding shares directly are not visible here.

Fund ownership counts N-PORT filers only, so it is a floor rather than a census — pensions, insurers and direct holders are not visible here, and the remainder is not “held by individuals”.

Every fund and institutional holder, quarter by quarter, is on the Ownership tab with a free account.

Connected research

Put this business in context.

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  • “How do Birchtech Corp. and its peers compare on margins and cash generation over ten years?”
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