UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES CONSOLIDATED FINANCIAL STATEMENTS WITH REPORT OF INDEPENDENT AUDITORS FOR THE NINE-MONTH PERIODS ENDED SEPTEMBER 30, 2023 AND 2022 Address: No. 3 Li-Hsin 2nd Road, Hsinchu Science Park, Hsinchu, Taiwan, R.O.C. Telephone: 886-3-578-2258 The reader is advised that these consolidated financial statements have been prepared originally in Chinese. In the event of a conflict between these financial statements and the original Chinese version or difference in in ...

Financial Data and Key Metrics - Q3 2023 consolidated revenue was NT$57.1 billion, with a gross margin of 35.9% [5] - Net income attributable to shareholders was NT$16 billion, with earnings per share (EPS) of NT$1.29, slightly better than the previous quarter's NT$1.27 [5] - Shipments declined by 2% sequentially, and capacity utilization was 67% in Q3 2023 [5] - Revenue for the first nine months of 2023 was NT$167.5 billion, a 20.5% YoY decline, with gross margin dropping from 45.8% in 2022 to 35.8% in 2023 [6] - Cash on hand was NT$140 billion, with total assets exceeding NT$547 billion [7] Business Line Data and Key Metrics - Communication segment revenue increased to 46% in Q3 2023, while consumer segment revenue dropped from 26% in Q2 to 23% in Q3 [7] - Revenue from 49nm and below technologies reached 45% of total revenue in Q3, up from 41% in the previous quarter [8] - P6 facility capacity increased by more than 1% in Q3, with an expected 2% sequential growth in Q4 [8] Market Data and Key Metrics - Asia remained the largest revenue segment at 58%, growing 2 percentage points from the previous quarter [7] - Europe and North America revenue remained unchanged, while Japan declined by 2 percentage points [7] - Revenue from 22nm and 28nm technologies is expected to grow further in 2024, driven by the P6 facility [11] Company Strategy and Industry Competition - The company is focusing on product mix optimization and specialty technologies to maintain profitability [10] - UMC plans to introduce new specialty technologies to strengthen customer competitiveness and market positions [10] - The company expects demand to stabilize in Q4 2023, with cautious inventory management by customers [11] - UMC is expanding its 22nm and 28nm market share, particularly in applications like OLED drivers, Wi-Fi, and SoC processors [18] Management Commentary on Operating Environment and Future Outlook - Management noted a gradual stabilization in demand for PCs and smartphones, but automotive business conditions remain challenging [11] - For Q4 2023, wafer shipments are expected to decline by 5%, with flat ASPs and gross margins in the low 30% range [12] - The company anticipates increased revenue contributions from 22nm and 28nm technologies in 2024 [11] Other Important Information - CapEx for 2023 remains unchanged at $3 billion [8] - The company is monitoring market dynamics and adjusting pricing strategies, particularly in the 8-inch market [16][91] Q&A Session Summary Question: Factors affecting Q4 gross margin [13] - Answer: Q4 gross margin is expected to be in the low 30% range due to a decline in utilization rates and a 5% drop in shipments [14] Question: Pricing environment and competition [15] - Answer: UMC is aware of market dynamics and will adjust pricing for some segments, particularly in the 8-inch market, while maintaining pricing for 12-inch business [16] Question: 20nm competition and product opportunities [17] - Answer: UMC remains resilient in 22nm and 28nm markets, with plans to expand market share in applications like OLED drivers and Wi-Fi [18] Question: Segment-specific shipment decline in Q4 [20] - Answer: The decline is primarily attributed to the automotive market, while PC and smartphone demand remains stable [21] Question: Depreciation outlook [24] - Answer: Depreciation expenses are expected to increase in 2024 due to P6 expansion and new facility construction [25] Question: Long-term pricing strategy and LPA coverage [28] - Answer: UMC will maintain competitiveness through technology innovation, diversified capacity, and manufacturing excellence [29][30] Question: Capacity expansion plans [36] - Answer: UMC is ramping up P6 capacity and expects to reach design capacity by September 2024, with adjustments based on market dynamics [37] Question: 2024 revenue growth outlook [38] - Answer: UMC expects loading and wafer shipments to increase in 2024, but will provide quarterly guidance due to cautious customer behavior [39] Question: Gross margin outlook for 2024 [55] - Answer: Management aims to maintain profitability despite headwinds like rising depreciation and utility costs [57] Question: AI-related business opportunities [76] - Answer: UMC is preparing solutions for AI applications, including interposer technology, with capacity expected to double by Q1 2024 [77][78] Question: Wafer-to-wafer technology [81] - Answer: UMC is developing hybrid bonding technology for RF front-end modules, with expectations of future benefits [82] Question: Medium-term gross margin targets [85] - Answer: UMC aims to achieve gross margins in the high 30% to 40% range in high-loading situations [86] Question: 8-inch market evolution [89] - Answer: UMC expects 8-inch loading to improve with market recovery, but competition remains intense, particularly from 12-inch suppliers [91]

UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES CONSOLIDATED FINANCIAL STATEMENTS WITH REPORT OF INDEPENDENT AUDITORS FOR THE SIX-MONTH PERIODS ENDED JUNE 30, 2023 AND 2022 Address: No. 3 Li-Hsin 2nd Road, Hsinchu Science Park, Hsinchu, Taiwan, R.O.C. Telephone: 886-3-578-2258 The reader is advised that these consolidated financial statements have been prepared originally in Chinese. In the event of a conflict between these financial statements and the original Chinese version or difference in interpre ...

United Microelectronics Corp (NYSE:UMC) Q2 2023 Earnings Conference Call July 26, 2023 5:00 AM ET Company Participants Michael Lin - IR Chi-Tung Liu - CFO, SVP, Head, Corporate Governance & Company Secretary Jason Wang - President & Representative Director Conference Call Participants Randy Abrams - Crédit Suisse Brett Simpson - Arete Research Services Charlie Chan - Morgan Stanley Bruce Lu - Goldman Sachs Group Szeho Ng - China Renaissance Securities Gokul Hariharan - JPMorgan Chase & Co. Sunny Lin - UBS O ...

UMC 2Q23 Financial Review NOTE CONCERNING FORWARD-LOOKING STATEMENTS This presentation contains forward-looking statements within the meaning of Section 27A of the United States Securities Act of 1933, as amended, and Section 21E of the United States Securities Exchange Act of 1934, as amended, and as defined in the United States Private Securities Litigation Reform Act of 1995. These forward looking statements include, but are not limited to, statements relating toanticipatedquarterlyFabcapacity, foundryca ...

Financial Position - Total assets as of March 31, 2023, reached NT$549,631,114 thousand, an increase from NT$533,052,092 thousand as of December 31, 2022, representing a growth of 3.3%[12] - Current assets decreased to NT$241,967,215 thousand as of March 31, 2023, from NT$252,371,038 thousand as of December 31, 2022, a decline of 4.3%[12] - Total non-current assets increased to NT$307,663,899 thousand as of March 31, 2023, from NT$280,681,054 thousand as of December 31, 2022, reflecting a growth of 9.6%[12] - Total liabilities as of March 31, 2023, were $194,081,051, a slight decrease from $197,601,153 as of December 31, 2022[15] - Total equity attributable to the parent company increased to $355,205,636 from $335,107,260 as of December 31, 2022, representing a growth of 6.5%[15] Revenue and Profitability - Operating revenues for Q1 2023 were $54,209,447, a decrease of 14.4% compared to $63,422,820 in Q1 2022[18] - Gross profit for Q1 2023 was $19,224,440, down 30.1% from $27,504,330 in Q1 2022[18] - Net income for Q1 2023 was $16,384,547, a decline of 18.4% from $20,065,623 in Q1 2022[18] - Total comprehensive income for Q1 2023 was $19,709,634, compared to $21,487,507 in Q1 2022, indicating a decline of 8.3%[18] - Operating income for Q1 2023 was $14,480,698, down 35.1% from $22,334,187 in Q1 2022[18] Cash Flow and Investments - Cash generated from operations for the three-month period ended March 31, 2023, was $28,733,130, compared to $30,340,563 in 2022, indicating a decrease of about 5.3%[23] - Cash flows from investing activities showed a net outflow of $29,586,209 compared to an inflow of $14,752,138 in the same period last year[25] - The acquisition of property, plant, and equipment amounted to $29,756,200, significantly higher than $10,802,553 in the previous year[25] - The company reported an increase in guarantee deposits of $2,327,873 compared to a decrease of $2,119 in the same period last year[25] Assets and Liabilities - Accounts receivable, net, fell to NT$26,674,425 thousand as of March 31, 2023, down 26.8% from NT$36,444,510 thousand as of December 31, 2022[12] - Inventories, net, increased to NT$32,678,867 thousand as of March 31, 2023, compared to NT$31,069,960 thousand as of December 31, 2022, reflecting a rise of 5.2%[12] - Current liabilities totaled $105,885,984 as of March 31, 2023, a decrease from $108,565,165 as of December 31, 2022[15] - The company reported a net gain of financial assets and liabilities at fair value through profit or loss of $(705,829) for the three-month period ended March 31, 2023, compared to $(2,417,830) in 2022, showing an improvement[23] Shareholder Information - Earnings per share for Q1 2023 were $1.31, compared to $1.61 in Q1 2022, reflecting a decrease of 18.6%[18] - The company reported a net income attributable to non-controlling interests of $201,545 for Q1 2023, compared to $258,088 in Q1 2022, a decrease of 22%[109] - Cash dividends for 2022 were set at NT$3.60 per share, totaling $45,017,096, marking the first cash dividend distribution since 2021[106] Research and Development - Research and development expenses for Q1 2023 were $2,766,607, a decrease from $3,032,939 in Q1 2022[18] Financial Instruments and Risk Management - The company has a liquidity risk management strategy that includes maintaining a balance between funding continuity and flexibility through cash, bank loans, bonds, and leases[184] - The Company limits credit risk by trading only with approved and creditworthy third parties and monitoring accounts receivable balances[181] - A 10% strengthening of NTD against USD would decrease profit by NT$988 million for the three-month period ended March 31, 2023[173] Accounting and Compliance - The company continues to evaluate the impact of newly issued accounting standards on its financial position and performance[40] - The company utilizes valuation techniques that maximize the use of observable inputs and minimize unobservable inputs for fair value measurement[194]

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 20-F (Mark One) ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ☐ SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES ...

United Microelectronics Corp (NYSE:UMC) Q1 2023 Earnings Conference Call April 26, 2023 5:00 AM ET Company Participants Michael Lin - IR Chi-Tung Liu - CFO, SVP, Head, Corporate Governance & Company Secretary Jason Wang - President & Representative Director Conference Call Participants Randy Abrams - Crédit Suisse Brett Simpson - Arete Research Services Bruce Lu - Goldman Sachs Group Szeho Ng - China Renaissance Securities Charlie Chan - Morgan Stanley Sunny Lin - UBS Rick Hsu - Daiwa Securities Gokul Harih ...

UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES CONSOLIDATED FINANCIAL STATEMENTS WITH REPORT OF INDEPENDENT AUDITORS FOR THE YEARS ENDED DECEMBER 31, 2022 AND 2021 Address: No. 3 Li-Hsin 2nd Road, Hsinchu Science Park, Hsinchu, Taiwan, R.O.C. Telephone: 886-3-578-2258 The reader is advised that these consolidated financial statements have been prepared originally in Chinese. In the event of a conflict between these financial statements and the original Chinese version or difference in interpretation b ...

United Microelectronics Corporation (NYSE:UMC) Q4 2022 Results Conference Call January 16, 2023 4:00 AM ET Company Participants Michael Lin - Head, IR Jason Wang - President Chi-Tung Liu - CFO Conference Call Participants Randy Abrams - Credit Suisse Gokul Hariharan - JP Morgan Charlie Chan - Morgan Stanley Szeho Ng - China Renaissance Sunny Lin - UBS Laura Chen - Citigroup Bruce Lu - Goldman Sachs Operator Welcome everyone to UMC's 2022 Fourth Quarter Earnings Conference Call. All lines have been placed on ...