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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: $7.18 Daily Weekly Monthly 20 Day Moving Average: 7,638,999 shares Shares Outstanding: 2,512.14 (millions) Market Capitalization: $18,037.19 (millions) Beta: 1.24 52 Week High: $8.33 52 Week Low: $5.61 Short Interest Ratio:   % Price Change % Price Change Relative to S&P 500 4 Week 6.21% 6.73% 12 Week -4.01% -7.76% Year To Date 10.63% -0.70%

• 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: 06/01/25 Next Expected EPS Date: 10/29/25 Share - Related Items Shares Outstanding: 2,512.14 Most Recent Split Date: 8.00 (1.05:1) Beta: 1.24 Market Capitalization: $18,037.19 (millions)

• EPS Information     • Dividend Information Analyst Coverage: No Dividend Yield: 5.18% Current Fiscal Quarter EPS Consensus Estimate: $0.10 Indicated Annual Dividend: $0.37 Current Fiscal Year EPS Consensus Estimate: $0.46 Payout Ratio: 0.76 Number of Estimates in the Fiscal Year Consensus: 2.00 Change In Payout Ratio: 0.40 Estmated Long-Term EPS Growth Rate: 3.62% Last Dividend Paid: NA - $0.00 Next EPS Report Date: 10/29/25

• Fundamental Ratios P/E Current FY Estimate: 15.61 Trailing 12 Months: 14.65 PEG Ratio: 4.31 Price Ratios Price/Book: 1.65 Price/Cash Flow: 6.26 Price / Sales: 2.40 EPS Growth vs. Year Ago Period: -29.41% vs. Previous Quarter: 33.33% Sales Growth vs. Year Ago Period: 14.62% vs. Previous Quarter: 15.08% ROE 09/30/25 - - 06/30/25 - 11.05 03/31/25 - 12.10 ROA 09/30/25 - - 06/30/25 - 7.15 03/31/25 - 7.81 Current Ratio 09/30/25 - - 06/30/25 - 1.77 03/31/25 - 2.64 Quick Ratio 09/30/25 - - 06/30/25 - 1.46 03/31/25 - 2.15 Operating Margin 09/30/25 - - 06/30/25 - 16.71 03/31/25 - 18.97 Net Margin 09/30/25 - - 06/30/25 - 16.71 03/31/25 - 18.97 Pre-Tax Margin 09/30/25 - - 06/30/25 - 19.22 03/31/25 - 22.34 Book Value 09/30/25 - - 06/30/25 - 4.36 03/31/25 - 4.73 Inventory Turnover 09/30/25 - - 06/30/25 - 4.57 03/31/25 - 4.35 Debt-to-Equity 09/30/25 - - 06/30/25 - 0.12 03/31/25 - 0.11 Debt-to-Capital 09/30/25 - - 06/30/25 - 10.99 03/31/25 - 10.25

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