UNITED MICROELECTRONICS CORPORATION — Investor Relations & Filings
UNITED MICROELECTRONICS CORPORATION (UMC) is a leading global semiconductor foundry, providing high-quality integrated circuit (IC) fabrication services. UMC specializes in logic and various specialty technologies, offering comprehensive solutions that encompass circuit design, mask tooling, wafer fabrication, assembly, and testing. The company serves major sectors of the electronics industry, enabling critical applications in areas such as AI, automotive, connectivity, consumer electronics, and IoT. UMC is recognized as an industry technology and manufacturing leader, operating advanced 300mm fabrication facilities.
Recent filings
| Filing | Released | Lang | Actions |
|---|---|---|---|
| General Announcement::NOTICE TO BONDHOLDERS FOR CLOSED PERIOD FOR BOND EXCHANGE | 2026-03-11 | English | |
| General Announcement::NOTICE TO BONDHOLDERS FOR EXCHANGE PRICE ADJUSTMENT | 2025-07-09 | English | |
| General Announcement::NOTICE TO BONDHOLDERS FOR CLOSED PERIOD FOR BOND EXCHANGE | 2025-06-20 | English |
Browse filings by year
2 years| ID | Filing | Released | Lang | Actions | |
|---|---|---|---|---|---|
|
2026
1 filing
| |||||
| 44893607 | General Announcement::NOTICE TO BONDHOLDERS FOR CLOSED PERIOD FOR BOND EXCHANGE | 2026-03-11 | English | ||
|
2025
2 filings
| |||||
| 44911027 | General Announcement::NOTICE TO BONDHOLDERS FOR EXCHANGE PRICE ADJUSTMENT | 2025-07-09 | English | ||
| 44912035 | General Announcement::NOTICE TO BONDHOLDERS FOR CLOSED PERIOD FOR BOND EXCHANGE | 2025-06-20 | English | ||
Market data
Market data not available
Price history
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UNITED MICROELECTRONICS CORPORATION 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/67854/ | Company identity, sector, listing, identifiers |
| GET | /api/filings/?company=67854 | 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=67854 | 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=67854 \ -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": 67854}, 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 UNITED MICROELECTRONICS CORPORATION (id: 67854)"
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