
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
Peer group · Manufacture of other electronic components and boards
| Company | Ticker | Country | Sector |
|---|---|---|---|
|
CHENGDU JIACHI ELECTRONIC TECHNOLOGY CO., LTD.
Develops electromagnetic functional materials for aerospace…
|
688708 | CN | Manufacturing |
|
Chengdu M&S Electronics Technology Co.,Ltd.
Develops microwave and millimeter-wave components for telec…
|
688311 | CN | Manufacturing |
|
Chengdu RML Technology Co., Ltd.
Develops millimeter-wave micro-systems and components for a…
|
301050 | CN | Manufacturing |
|
CHENGDU SINO-MICROELECTRONICS TECH. CO., LTD.
Manufactures power semiconductor devices and ICs for energy…
|
688709 | CN | Manufacturing |
|
CHENGDU SPACEON ELECTRONICS CO., LTD.
Develops and manufactures high-precision frequency control …
|
002935 | CN | Manufacturing |
|
CHENGDU TIANJIAN TECHNOLOGY CO., LTD.
Develops microwave components and subsystems for aerospace …
|
002977 | CN | Manufacturing |
|
Chengdu Xuguang Electronics Co.,Ltd.
Develops vacuum electronic devices, components, and ceramic…
|
600353 | CN | Manufacturing |
|
Chicony Power
Global leader in high-efficiency power conversion solutions…
|
6412 | TW | Manufacturing |
|
China Aerospace International Holdings Limited
Investment holding company focused on hi-tech manufacturing…
|
31 | HK | Manufacturing |
|
China Chippacking Technology Co.,Ltd.
Provides IC packaging and testing services for diverse elec…
|
688216 | CN | Manufacturing |
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)"
Report missing filing
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