UNITED MICROELECTRONICS CORP
United Microelectronics Corporation (UMC; Chinese: 聯華電子; pinyin: Liánhuá Diànzǐ) is a Taiwanese company based in Hsinchu, Taiwan. It was founded as Taiwan's first semiconductor company in 1980 as a spin-off of the government-sponsored Industrial Technology Research Institute (ITRI).
Basic company information
Each field links to its source. Financial figures retain their reporting periods; background references are identified in the source list.
- Ticker / security symbols
- UMC [1]
- Listing exchanges
- NYSE [1]
- SEC industry
- Semiconductors & Related Devices [1]
- Business sectors
- semiconductor industry [2]
- Company / filing name
- UNITED MICROELECTRONICS CORP [1]
- Headquarters location
- Hsinchu City; Hsinchu Science Park [2]
- Business address
- 8F, NO.68, SEC. 1, NEIHU RD.,, TAIPEI, F5, 11493 [1]
- Founded
- 1980-05-22; 1980 [2]
- Legal form
- Company Limited by Shares (Taiwan) [2]
- Incorporation jurisdiction
- Taiwan [1]
- Official website
- www.umc.com ↗ [2]
- Fiscal year end
- December 31 (SEC record) [1]
- ISIN (reported securities)
- US9108734057 [2]
- CIK
- 0001033767 [1]
- SIC code
- 3674 [1]
- Country in background record
- Taiwan [2]
Company positioning and business
United Microelectronics Corporation (UMC; Chinese: 聯華電子; pinyin: Liánhuá Diànzǐ) is a Taiwanese company based in Hsinchu, Taiwan. It was founded as Taiwan's first semiconductor company in 1980 as a spin-off of the government-sponsored Industrial Technology Research Institute (ITRI). [3]
Background text: Wikipedia contributors, United Microelectronics Corporation. Selected introductory paragraphs, licensed under CC BY-SA 4.0. Official filing data is cited separately.
Financial year, securities and disclosures
The SEC submissions record gives UNITED MICROELECTRONICS CORP a fiscal year end of 1231 (MMDD). Individual filings below identify their own reporting period; the filing date is the publication event, not the financial year end. [1]
Listed securities: UMC (NYSE). Multiple symbols may represent different share classes or securities of the same registrant. [4]
History and key events
Form 20-F filed; reporting period ends 2025-12-31. [5]
Financial results and regulatory disclosures
Annual, quarterly and current reports from the collected SEC record. Insider Forms 4 and 144 are excluded. This is a selected list, not a live filing feed.
Source-verified relationships
Companies in the same industry
Comparison candidates share the SEC SIC classification 3674. This does not imply ownership, partnership or trading relationships.
Related entities and concepts
Frequently asked questions
When was UNITED MICROELECTRONICS CORP founded?
Founded: 1980-05-22; 1980. The linked source provides the background record. [2]
Where is the headquarters of UNITED MICROELECTRONICS CORP?
Headquarters location: Hsinchu City; Hsinchu Science Park. The linked source provides the background record. [2]
Which business sectors are recorded for UNITED MICROELECTRONICS CORP?
Business sectors: semiconductor industry. The linked source provides the background record. [2]
UNITED MICROELECTRONICS CORP relationship map
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2 verified direct relationships. Industry peers are not relationship edges.
Sources and review dates
- SEC — UNITED MICROELECTRONICS CORP filing identity and securities ↗
- Wikidata — company background record (CC0) ↗
- Wikipedia contributors — United Microelectronics Corporation (CC BY-SA 4.0) ↗
- SEC securities directory ↗
- Company chronology / filing ↗
Reviewed 23 October 2026. Financial periods and historical event dates are shown separately. Figures reflect their stated source dates; this page is not a live quote or investment recommendation.