
Birchtech Corp. — Investor Relations & Filings
Birchtech Corp. is an environmental technology firm specializing in advanced air and water purification solutions, leveraging proprietary and patented specialty activated carbon and sorbent technologies. The company's core business involves providing patented SEA® sorbents for mercury emissions capture, primarily serving the coal-fired utility sector. Expanding its expertise, Birchtech is also developing disruptive water purification technologies focused on contaminant removal, particularly "forever chemicals" such as PFAS and PFOS. Birchtech emphasizes delivering highly efficient, affordable, and sustainable solutions, backed by a strong intellectual property portfolio and deep industry experience in activated carbon technologies.
Recent filings
| Filing | Released | Lang | Actions |
|---|---|---|---|
| News release - English.pdf | 2026-04-22 | English | |
| News release - English.pdf | 2026-04-22 | English | |
| News release - English.pdf | 2026-04-22 | English | |
| Material change report - English.pdf | 2026-04-14 | English | |
| Material change report - English.pdf | 2026-04-14 | English | |
| Annual information form - English.pdf | 2026-04-07 | English |
Market data
Market data not available
Price history
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Birchtech Corp. via the API
Pull this company's filings, identifiers, and metadata as JSON or Markdown. Authenticate with your API key, then query by company ID, ISIN, or LEI. Full schema documented in the OpenAPI spec.
Endpoints
| GET | /api/companies/47058/ | Company identity, sector, listing, identifiers |
| GET | /api/filings/?company=47058 | Paginated list of all filings (filterable by type, date, language) |
| GET | /api/filings/{id}/ | Single filing — metadata, document URL, processing status |
| GET | /api/filings/{id}/markdown/ | Filing content as Markdown (PDF → text/tables/figures) |
| GET | /api/isins/?company=47058 | All ISINs registered to this company |
| GET | /api/filing-types/ | Reference: every filing-type code + category |
cURL
$ curl https://api.financialreports.eu/api/filings/?company=47058 \ -H "x-api-key: $FR_API_KEY" \ -H "Accept: application/json"
Python
import requests r = requests.get( "https://api.financialreports.eu/api/filings/", params={"company": 47058}, headers={"x-api-key": API_KEY}, ) filings = r.json()["results"]
MCP server
// MCP server URL https://mcp.financialfilings.com/mcp // Once connected, the LLM can query this company directly: "Pull the latest 5 filings for Birchtech Corp. (id: 47058)"
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