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United Microelectronics Corporation (UMC) Form 6-K: Report of foreign private issuer, 2026

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United Microelectronics Corporation Form 6-K: Report of foreign private issuer

Filings on SEC EDGAR, newest first; amendments sit with their base form. Values are as filed.

  • 2026-09-04: Form 6-K; Period of report 2026-09-04; Description 6-K; Document 6k_on_09042026.htm.
  • 2026-09-02: Form 6-K; Period of report 2026-09-02; Description 6-K; Document 6k_on_09022026.htm.
  • 2026-08-26: Form 6-K; Period of report 2026-08-26; Description 6-K; Document 6k_on_08262026.htm.
  • 2026-08-14: Form 6-K; Period of report 2026-08-14; Description 6-K; Document 6k_on_08142026.htm.
FiledFormPeriod of reportDescriptionDocument
2026-09-046-K2026-09-046-K6k_on_09042026.htm
2026-09-026-K2026-09-026-K6k_on_09022026.htm
2026-08-266-K2026-08-266-K6k_on_08262026.htm
2026-08-146-K2026-08-146-K6k_on_08142026.htm
2026-08-066-K2026-08-066-K6k_on_08062026.htm
2026-08-056-K2026-08-056-K6k_on_08052026.htm
2026-07-306-K2026-07-306-K6k_on_07302026.htm
2026-07-296-K2026-07-296-K2026q2_quarterly_reports.htm
2026-07-296-K2026-07-296-K6k_on_07292026.htm
2026-07-216-K2026-07-216-K6k_on_07212026.htm
2026-07-156-K2026-07-156-K6k_on_07152026.htm
2026-07-146-K2026-07-146-K6k_on_07142026.htm
2026-07-066-K2026-07-066-K6k_on_07062026.htm
2026-06-296-K2026-06-296-K6k_on_06292026.htm
2026-06-236-K2026-06-236-K6k_on_06232026.htm
2026-06-226-K2026-06-226-K6k_on_06222026.htm
2026-06-186-K2026-06-186-K6k_on_06182026.htm
2026-06-166-K2026-06-166-K6k_on_06162026.htm
2026-06-056-K2026-06-056-K6k_on_06052026.htm
2026-06-036-K2026-06-036-K6k_on_06032026.htm
2026-05-276-K2026-05-276-K6k_on_05272026.htm
2026-05-226-K2026-05-226-K6k_on_05222026.htm
2026-05-206-K2026-05-206-K6k_on_05202026.htm
2026-05-156-K2026-05-156-K6k_on_05152026.htm
2026-05-136-K2026-05-136-K6k_on_05132026.htm
2026-05-126-K2026-05-126-K6k_on_05122026.htm
2026-05-116-K2026-05-116-K6k_on_05112026.htm
2026-05-086-K2026-05-086-K6k_on_05082026.htm
2026-05-076-K2026-05-076-K6k_on_05072026.htm
2026-04-306-K2026-04-306-K6k_on_04302026.htm
2026-04-296-K2026-04-296-K2026q1_quarterly_reports.htm
2026-04-296-K2026-04-296-K6k_on_04292026.htm
2026-04-216-K2026-04-216-K6k_on_04212026.htm
2026-04-156-K2026-04-156-K6k_on_04152026.htm
2026-04-086-K2026-04-086-K6k_on_04082026.htm
2026-03-266-K2026-03-266-K6k_on_03262026.htm
2026-03-126-K2026-03-126-K6k_on_03122026.htm
2026-03-056-K2026-03-056-K6k_on_03052026.htm
2026-02-256-K2026-02-256-K2025_annual_reports.htm
2026-02-256-K2026-02-256-K6k_on_02252026.htm
2026-02-246-K2026-02-246-K6k_on_02242026.htm
2026-02-136-K2026-02-136-K6k_on_02132026.htm
2026-02-056-K2026-02-056-K6k_on_02052026.htm
2026-01-286-K2026-01-286-K6k_on_01282026.htm
2026-01-146-K2026-01-146-K6k_on_01142026.htm
2026-01-076-K2026-01-076-K6k_on_01072026.htm
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