NYSE·Semiconductors & Related Devices

UMCUNITED MICROELECTRONICS CORP

UNITED MICROELECTRONICS CORP (UMC) has a auditor change flag.

Last filing: filing·Apr 30, 2026EDGAR ↗

UMC Risk Flags

Consolidated view of every risk_flag row UMChas surfaced across DredgeCap's extractor pipeline (auditor changes, late filings, delistings, going-concern, dilution, etc.). Each row carries a verbatim source_excerpt and links to the source SEC filing on EDGAR.

Category	Severity	Source	Excerpt	EDGAR
Auditor Change	low	20-F · Apr 27, 2023	PCAOB-tagged auditor in 20-F filed 2023-04-27 (accession 0001193125-23-119772) was 'Ernst & Young' (PCAOB Firm ID: 1443). Prior 20-F filed 2022-04-28 (accession 0001193125-22-125284) was 'Ernst & Young' (PCAOB Firm ID: 42).	view ↗

Related on UMC

Auditor & opinion →

Source for auditor_change + going-concern flags.

Share-count dilution →

Source for dilution + convertible-debt flags.

Risk-flag rows are produced by DredgeCap's extractor pipeline (lib/extract-auditor-changes, extract-late-filings, etc.). Each row carries a verbatim source_excerpt from the underlying SEC filing — no AI-generated language. Refresh runs daily. Not financial advice.