UNITED MICROELECTRONICS CORPORATION Unaudited Condensed Unconsolidated Balance Sheet As of March 31, 2010 Figures in Million of New Taiwan Dollars (NT$) and U.S. Dollars (US$) March 31, 2010 NT$ US$ % ASSETS Current Assets Cash and Cash Equivalents Financial assets at fair value through profit or loss, current Available-for-sale financial assets, current Notes & Accounts Receivable, net Inventories, net Other Current Assets Total Current Assets 1,529 65 177 534 299 51 2,655 48,536 2,054 5,609 16,945 9,479 1,636 84,259 19.7% 0.8% 2.3% 6.9% 3.8% 0.6% 34.1% Non-Current Assets Funds and Investments Property, Plant and Equipment, net Other Assets Total Non-Current Assets TOTAL ASSETS 2,124 2,797 199 5,120 7,775 67,404 88,791 6,318 162,513 246,772 27.3% 36.0% 2.6% 65.9% 100.0% LIABILITIES Current Liabilities Financial liabilities at fair value through profit or loss, current Payables Current Portion of Long-term Liabilities Other Current Liabilities Total Current Liabilities 55 620 406 11 1,092 1,741 19,665 12,886 368 34,660 0.7% 8.0% 5.2% 0.1% 14.0% Non-Current Liabilities Long-term Loans Other Liabilities Total Non-Current Liabilities TOTAL LIABILITIES 25 110 135 1,227 797 3,481 4,278 38,938 0.3% 1.5% 1.8% 15.8% 4,092 1,403 1,265 129,879 44,529 40,160 52.6% 18.0% 16.3% (212) 6,548 7,775 (6,734) 207,834 246,772 (2.7%) 84.2% 100.0% STOCKHOLDERS' EQUITY Capital Stock Additional Paid-in Capital Retained Earnings, Unrealized Gain or Loss on Financia Instruments and Cumulative Translation Adjustmen Treasury Stock TOTAL STOCKHOLDERS' EQUITY TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY Note ： New Taiwan Dollars have been translated into U.S. Dollars at the March 31, 2010 exchange rate of NT $31.74 per U.S. Dollar. All figures are in ROC GAAP. Financial Table 1/4 UNITED MICROELECTRONICS CORPORATION Unaudited Condensed Unconsolidated Income Statement Figures in Million of New Taiwan Dollars (NT$) and U.S. Dollars (US$) Except Per Share and Per ADS Data Year over Year Comparison Net Sales Cost of Goods Sold Net Gross Profit (Loss) Operating Expenses - Sales & Marketing - General & Administrative - Research & Development Operating Income (Loss) Net Non-Operating Income (Expenses) Income (Loss) from continuing operations before income tax Income Tax Expense Net Income (Loss) Earnings (Losses) per Share Earnings (Losses) per ADS (2) Weighted Average Number of Shares Outstanding (in millions) Quarter over Quarter Comparison Three-Month Period Ended March 31, 2010 March 31, 2009 US$ NT$ US$ NT$ 842 26,715 341 10,838 (635) (20,156) (478) (15,173) 207 6,559 (137) (4,335) 24.6% 24.6% (40.0%) (40.0%) (17) (19) (64) (100) 107 12.7% (545) (603) (2,007) (3,155) 3,404 12.7% % Chg. 146.5% 32.8% (251.3%) (20) (17) (57) (94) (231) (67.5%) (632) (529) (1,821) (2,982) (7,317) (67.5%) (13.8%) 14.0% 10.2% 5.8% (146.5%) Three-Month Period Ended March 31, 2010 December 31, 2009 US$ NT$ US$ NT$ 842 26,715 874 27,746 (635) (20,156) (648) (20,567) 207 6,559 226 7,179 24.6% 24.6% 25.9% 25.9% (17) (19) (64) (100) 107 12.7% (545) (603) (2,007) (3,155) 3,404 12.7% (21) (20) (67) (108) 118 13.5% (654) (644) (2,137) (3,435) 3,744 13.5% % Chg. (3.7%) (2.0%) (8.6%) (16.7%) (6.4%) (6.1%) (8.2%) (9.1%) 7 197 (26) (843) (123.4%) 7 197 22 700 (71.9%) 114 13.5% 3,601 13.5% (257) (75.3%) (8,160) (75.3%) (144.1%) 114 13.5% 3,601 13.5% 140 16.0% 4,444 16.0% (19.0%) (4) 110 13.0% (119) 3,482 13.0% (0) (257) (75.3%) (0) (8,160) (75.3%) 100.0% (142.7%) (4) 110 13.0% (119) 3,482 13.0% (1) 139 15.8% (48) 4,396 15.8% 147.9% (20.8%) 0.009 0.044 0.28 1.40 (0.020) (0.101) (0.64) (3.20) 0.009 0.044 0.28 1.40 0.011 0.055 0.35 1.75 12,638 12,767 Notes: (1) New Taiwan Dollars have been translated into U.S. Dollars at the March 31, 2010 exchange rate of NT$31.74 per U.S. Dollar. All figures are in ROC GAAP. (2) 1 ADS equals 5 common shares. 12,638 12,687 Financial Table 2/4 UNITED MICROELECTRONICS CORPORATION Unaudited Condensed Unconsolidated Income Statement Figures in Million of New Taiwan Dollars (NT$) and U.S. Dollars (US$) Except Per Share and Per ADS Data Net Sales Cost of Goods Sold Net Gross Profit Operating Expenses - Sales & Marketing - General & Administrative - Research & Development For the Three-Month Period Ended March 31, 2010 US$ NT$ % 842 26,715 100.0% (635) (20,156) (75.4%) 207 6,559 24.6% For the Year Ended March 31, 2010 US$ NT$ 842 26,715 (635) (20,156) 207 6,559 % 100.0% (75.4%) 24.6% (17) (19) (64) (100) 107 (545) (603) (2,007) (3,155) 3,404 (2.0%) (2.3%) (7.6%) (11.9%) 12.7% (17) (19) (64) (100) 107 (545) (603) (2,007) (3,155) 3,404 (2.0%) (2.3%) (7.6%) (11.9%) 12.7% Net Non-Operating Income (Expenses) Income from continuing operations before income tax 7 114 197 3,601 0.8% 13.5% 7 114 197 3,601 0.8% 13.5% Income Tax Expense Net Income (4) 110 (119) 3,482 (0.5%) 13.0% (4) 110 (119) 3,482 (0.5%) 13.0% Operating Income Earnings per Share Earnings per ADS (2) Weighted Average Number of Shares Outstanding (in millions) 0.009 0.044 0.28 1.40 12,638 0.009 0.044 0.28 1.40 12,638 Notes: (1) New Taiwan Dollars have been translated into U.S. Dollars at the March 31, 2010 exchange rate of NT $31.74 per U.S. Dollar. All figures are in ROC GAAP. (2) 1 ADS equals 5 common shares. Financial Table 3/4 UNITED MICROELECTRONICS CORPORATION Unaudited Condensed Unconsolidated Statement of Cash Flows For The Year Ended March 31, 2010 Figures in Million of New Taiwan Dollars (NT$) and U.S. Dollars (US$) USD Cash flows from operating activities : Net Income Depreciation & Amortization Gain on recovery in market value and obsolescence of inventories Cash dividends received under the equity method Investment loss accounted for under the equity method Gain on valuation of financial assets and liabilities Gain on disposal of investments Gain on disposal of property, plant and equipment Exchange gain on financial assets and liabilities Exchange gain on long-term liabilities Amortization of bond discounts Amortization of deferred income Compensation cost of Share-Based payment Changes in assets, liabilities and others Net cash provided by operating activities NTD 110 255 (4) 2 4 (8) (2) (0) 0 (1) 2 (2) 5 17 378 3,482 8,081 (117) 49 136 (263) (77) (5) 8 (40) 56 (50) 154 594 12,008 Cash flows from investing activities : Proceeds from disposal of available-for-sales financial assets Acquisition of long-term investments accounted for under the equity method Proceeds from liquidation of long-term investments Acquisition of property, plant and equipment Proceeds from disposal of property, plant and equipment Increase in deferred charges Increase in other assets - others Net cash used in investing activities 4 (47) 0 (315) 0 (6) (0) (364) 116 (1,500) 10 (10,000) 10 (187) (4) (11,555) Cash flows from financing activities : Proceeds from long-term Loans Exercise of employee stock options Purchase of treasury stock Disposal of treasury stock Increase in deposits-in Net cash used in financing activities 3 0 (153) 0 0 (150) 100 3 (4,844) 7 2 (4,732) Effect of exchange rate changes on cash and cash equivalents Net increase in cash and cash equivalents 2 (134) 23 (4,256) Cash and cash equivalents at beginning of period 1,663 52,792 Cash and cash equivalents at end of period 1,529 48,536 Note: New Taiwan Dollars have been translated into U.S. Dollars at the March 31, 2010 exchange rate of NT $31.74 per U.S. Dollar. All figures are in ROC GAAP. Financial Table 4/4