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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: 19,097

• Price / Volume Information    Yesterday's Closing Price: $18.89 Daily Weekly Monthly 20 Day Moving Average: 11,090,651 shares Shares Outstanding: 2,517.63 (millions) Market Capitalization: $47,558.05 (millions) Beta: 1.60 52 Week High: $28.96 52 Week Low: $6.97 Short Interest Ratio:   % Price Change % Price Change Relative to S&P 500 4 Week -22.30% -21.08% 12 Week -0.74% -2.48% Year To Date 140.33% 115.80%

• 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 Jason Wang - Chief Executive Officer and Director Stan Hung - Chairman;Chief Strategic Officer Ming Hsu - President; Chief Operating Officer and Director Lih J. Chen - Director Jyuo-Min Shyu - 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: 06/01/26 Next Expected EPS Date: 10/28/26 Share - Related Items Shares Outstanding: 2,517.63 Most Recent Split Date: 8.00 (1.05:1) Beta: 1.60 Market Capitalization: $47,558.05 (millions)

• EPS Information     • Dividend Information Analyst Coverage: No Dividend Yield: 1.62% Current Fiscal Quarter EPS Consensus Estimate: $0.25 Indicated Annual Dividend: $0.31 Current Fiscal Year EPS Consensus Estimate: $1.23 Payout Ratio: 0.35 Number of Estimates in the Fiscal Year Consensus: 2.00 Change In Payout Ratio: -0.09 Estmated Long-Term EPS Growth Rate: 34.65% Last Dividend Paid: NA - $0.00 Next EPS Report Date: 10/28/26

• Fundamental Ratios P/E Current FY Estimate: 15.36 Trailing 12 Months: 17.65 PEG Ratio: 0.44 Price Ratios Price/Book: 3.38 Price/Cash Flow: 15.01 Price / Sales: 5.93 EPS Growth vs. Year Ago Period: 350.00% vs. Previous Quarter: 170.00% Sales Growth vs. Year Ago Period: 8.42% vs. Previous Quarter: 12.75% ROE 09/30/26 - - 06/30/26 - 21.00 03/31/26 - 13.67 ROA 09/30/26 - - 06/30/26 - 13.87 03/31/26 - 8.85 Current Ratio 09/30/26 - - 06/30/26 - 2.17 03/31/26 - 2.72 Quick Ratio 09/30/26 - - 06/30/26 - 1.81 03/31/26 - 2.23 Operating Margin 09/30/26 - - 06/30/26 - 33.18 03/31/26 - 20.71 Net Margin 09/30/26 - - 06/30/26 - 33.18 03/31/26 - 20.71 Pre-Tax Margin 09/30/26 - - 06/30/26 - 35.90 03/31/26 - 22.62 Book Value 09/30/26 - - 06/30/26 - 5.59 03/31/26 - 5.11 Inventory Turnover 09/30/26 - - 06/30/26 - 4.65 03/31/26 - 4.65 Debt-to-Equity 09/30/26 - - 06/30/26 - 0.10 03/31/26 - 0.12 Debt-to-Capital 09/30/26 - - 06/30/26 - 9.31 03/31/26 - 10.39

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