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Zacks Company Profile for United Microelectronics Corporation (UMC : NYSE)

• Company Description    UMC specializes in providing foundry services for high performancesemiconductor applications. Its core competency lies in its abilityto produce high yield Integrated Circuit wafers, manufactured on a per-customer basis. The company draws its distinction from industryleading technology. In addition to wafer manufacturing, its customers benefit from services such as extensive IP resources, free-of-charge design libraries, and full front-end and backend support. Number of Employees: 19,016

• Price / Volume Information    Yesterday's Closing Price: $10.42 Daily Weekly Monthly 20 Day Moving Average: 13,765,478 shares Shares Outstanding: 2,512.14 (millions) Market Capitalization: $26,176.53 (millions) Beta: 1.10 52 Week High: $12.68 52 Week Low: $5.71 Short Interest Ratio:   % Price Change % Price Change Relative to S&P 500 4 Week 12.04% 13.74% 12 Week 43.92% 39.01% Year To Date 32.57% 32.75%

• Address & Contact Information Street Address Phone / Fax Email Address Web URL No.3 Li-HsinRoad II Hsinchu Science Park - Hsinchu,F5 300094 TWN ph: 886-2-2658-9168 fax: 886-3577-9392 ir@umc.com http://www.umc.com

• General Corporate Information    Officers Stan Hung - Chairman SC Chien - Co-president Chitung Liu - Senior Vice President and Chief Financial Officer Lih J. Chen - Director Kuang Si Shiu - Director Peer Information United Microelectronics Corporation (CPCL.) United Microelectronics Corporation (HIFN) United Microelectronics Corporation (SEM.1) United Microelectronics Corporation (DION) United Microelectronics Corporation (AMKR) United Microelectronics Corporation (CNXT.) Industry / Sector / Ticker Info Analyst Coverage: No Industry Group: ELEC COMP-SEMIC Sector: Computer and Technology CUSIP: 910873405 SIC: 3674 Fiscal Year Fiscal Year End: December Last Reported Quarter: 12/01/25 Next Expected EPS Date: 04/22/26 Share - Related Items Shares Outstanding: 2,512.14 Most Recent Split Date: 8.00 (1.05:1) Beta: 1.10 Market Capitalization: $26,176.53 (millions)

• EPS Information     • Dividend Information Analyst Coverage: No Dividend Yield: 3.57% Current Fiscal Quarter EPS Consensus Estimate: $0.12 Indicated Annual Dividend: $0.37 Current Fiscal Year EPS Consensus Estimate: $0.52 Payout Ratio: 0.69 Number of Estimates in the Fiscal Year Consensus: 2.00 Change In Payout Ratio: 0.28 Estmated Long-Term EPS Growth Rate: 3.62% Last Dividend Paid: NA - $0.00 Next EPS Report Date: 04/22/26

• Fundamental Ratios P/E Current FY Estimate: 20.04 Trailing 12 Months: 19.30 PEG Ratio: 5.54 Price Ratios Price/Book: 2.17 Price/Cash Flow: 9.08 Price / Sales: 3.42 EPS Growth vs. Year Ago Period: 30.00% vs. Previous Quarter: -35.00% Sales Growth vs. Year Ago Period: 6.84% vs. Previous Quarter: 1.44% ROE 12/31/25 - 11.59 09/30/25 - 11.18 06/30/25 - 11.05 ROA 12/31/25 - 7.52 09/30/25 - 7.26 06/30/25 - 7.15 Current Ratio 12/31/25 - - 09/30/25 - 2.34 06/30/25 - 1.77 Quick Ratio 12/31/25 - - 09/30/25 - 1.92 06/30/25 - 1.46 Operating Margin 12/31/25 - 17.60 09/30/25 - 17.08 06/30/25 - 16.71 Net Margin 12/31/25 - 17.60 09/30/25 - 17.08 06/30/25 - 16.71 Pre-Tax Margin 12/31/25 - - 09/30/25 - 18.82 06/30/25 - 19.22 Book Value 12/31/25 - - 09/30/25 - 4.80 06/30/25 - 4.36 Inventory Turnover 12/31/25 - - 09/30/25 - 4.71 06/30/25 - 4.57 Debt-to-Equity 12/31/25 - - 09/30/25 - 0.15 06/30/25 - 0.12 Debt-to-Capital 12/31/25 - - 09/30/25 - 12.95 06/30/25 - 10.99

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