UNITED MICROELECTRONICS CORPORATION Condensed Unconsolidated Balance Sheet As of March 31, 2012 Figures in Millions of New Taiwan Dollars (NT$) and U.S. Dollars (US$) US$ March 31, 2012 NT$ % 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 1,071 26 189 422 343 56 2,107 31,601 749 5,586 12,445 10,113 1,659 62,153 12.0% 0.3% 2.1% 4.7% 3.9% 0.7% 23.7% Non-Current Assets Funds and Investments Property, Plant and Equipment, net Other Assets Total Non-Current Assets TOTAL ASSETS 2,072 4,497 225 6,794 8,901 61,128 132,672 6,619 200,419 262,572 23.3% 50.5% 2.5% 76.3% 100.0% LIABILITIES Current Liabilities Short-term Loans Financial Liabilities at Fair Value through Profit or Loss, current Payables Current Portion of Long-term Liabilities Other Current Liabilities Total Current Liabilities 80 28 710 215 18 1,051 2,364 829 20,933 6,339 535 31,000 0.9% 0.3% 8.0% 2.4% 0.2% 11.8% Non-Current Liabilities Bonds Payable Long-term Loans Other Liabilities Total Non-Current Liabilities TOTAL LIABILITIES 407 189 122 718 1,769 12,009 5,585 3,589 21,183 52,183 4.6% 2.1% 1.4% 8.1% 19.9% 4,385 1,589 1,326 129,370 46,870 39,112 49.3% 17.9% 14.8% (168) 7,132 8,901 (4,963) 210,389 262,572 (1.9%) 80.1% 100.0% STOCKHOLDERS' EQUITY Capital Stock Additional Paid-in Capital Retained Earnings, Unrealized Gain or Loss on Financial Instruments and Cumulative Translation Adjustment 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, 2012 exchange rate of NT $ 29.50 per U.S. Dollar. All figures are in ROC GAAP. Financial Table 1/4 UNITED MICROELECTRONICS CORPORATION Condensed Unconsolidated Income Statement Figures in Millions 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 Operating Expenses - Sales & Marketing - General & Administrative - Research & Development Operating Income Net Non-Operating Income (Expenses) Income from Continuing Operations before Income Tax Quarter over Quarter Comparison Three-Month Period Ended March 31, 2012 March 31, 2011 US$ NT$ US$ NT$ 805 23,765 953 28,118 (651) (19,215) (691) (20,376) 154 4,550 262 7,742 19.1% 19.1% 27.5% 27.5% (17) (19) (73) (109) 45 5.6% (509) (552) (2,165) (3,226) 1,324 5.6% (15) (23) (74) (112) 150 15.8% (452) (668) (2,180) (3,300) 4,442 15.8% % Chg. (15.5%) (5.7%) (41.2%) 12.6% (17.4%) (0.7%) (2.2%) (70.2%) Three-Month Period Ended March 31, 2012 December 31, 2011 US$ NT$ US$ NT$ 805 23,765 828 24,425 (651) (19,215) (674) (19,875) 154 4,550 154 4,550 19.1% 19.1% 18.6% 18.6% (17) (19) (73) (109) 45 5.6% (509) (552) (2,165) (3,226) 1,324 5.6% (28) (20) (78) (126) 28 3.4% (822) (601) (2,287) (3,710) 840 3.4% % Chg. (2.7%) (3.3%) 0.0% (38.1%) (8.2%) (5.3%) (13.0%) 57.6% 6 169 15 432 (60.9%) 6 169 5 149 13.4% 51 6.3% 1,493 6.3% 165 17.3% 4,874 17.3% (69.4%) 51 6.3% 1,493 6.3% 33 4.1% 989 4.1% 51.0% Income Tax Expense Net Income (6) 45 5.6% (158) 1,335 5.6% (13) 152 15.9% (391) 4,483 15.9% (59.6%) (70.2%) (6) 45 5.6% (158) 1,335 5.6% (0) 33 4.0% (9) 980 4.0% 100.0% 36.2% Earnings per Share Earnings per ADS (2) Weighted Average Number of Shares Outstanding (in millions) 0.004 0.019 0.11 0.55 0.012 0.061 0.36 1.80 0.004 0.019 0.11 0.55 0.003 0.014 0.08 0.40 12,613 12,514 Note: (1) New Taiwan Dollars have been translated into U.S. Dollars at the March 31, 2012 exchange rate of NT $ 29.50 per U.S. Dollar. All figures are in ROC GAAP. (2) 1 ADS equals 5 common shares. 12,613 12,609 Financial Table 2/4 UNITED MICROELECTRONICS CORPORATION Condensed Unconsolidated Income Statement Figures in Millions 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 Operating Income For the Three-Month Period Ended March 31, 2012 US$ NT$ % 805 23,765 100.0% (651) (19,215) (80.9%) 154 4,550 19.1% (17) (19) (73) (109) 45 (509) (552) (2,165) (3,226) 1,324 (2.1%) (2.3%) (9.1%) (13.5%) 5.6% For the Three-Month Period Ended March 31, 2012 US$ NT$ % 805 23,765 100.0% (651) (19,215) (80.9%) 154 4,550 19.1% (17) (19) (73) (109) 45 (509) (552) (2,165) (3,226) 1,324 (2.1%) (2.3%) (9.1%) (13.5%) 5.6% Net Non-Operating Income (Expenses) Income from Continuing Operations before Income Tax 6 169 0.7% 6 169 0.7% 51 1,493 6.3% 51 1,493 6.3% Income Tax Expense Net Income (6) 45 (158) 1,335 (0.7%) 5.6% (6) 45 (158) 1,335 (0.7%) 5.6% Earnings per Share (2) Earnings per ADS Weighted Average Number of Shares Outstanding (in millions) 0.004 0.019 0.11 0.55 0.004 0.019 12,613 0.11 0.55 12,613 Note: (1) New Taiwan Dollars have been translated into U.S. Dollars at the March 31, 2012 exchange rate of NT $ 29.50 per U.S. Dollar. All figures are in ROC GAAP. (2) 1 ADS equals 5 common shares. Financial Table 3/4 UNITED MICROELECTRONICS CORPORATION Condensed Unconsolidated Statement of Cash Flows For The Three-Month Period Ended March 31, 2012 Figures in Millions of New Taiwan Dollars (NT$) and U.S. Dollars (US$) USD Cash flows from operating activities : Net Income Depreciation & Amortization Bad debt Gain on recovery in market value and obsolescence of inventories Investment loss accounted for under the equity method Loss on valuation of financial assets and liabilities Impairment loss 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 Stock-based payment Changes in assets, liabilities and others Net cash provided by operating activities NTD 45 267 (0) (9) 7 2 1 (12) (0) (4) (5) 3 (1) 3 25 322 1,335 7,865 (0) (254) 202 71 21 (362) (11) (121) (141) 85 (21) 82 747 9,498 22 (1) (327) 0 (11) 0 (317) 663 (16) (9,659) 11 (336) (1) (9,338) Cash flows from financing activities : Decrease in short-term loans Proceeds from long-term loans Repayments of long-term loans Exercise of employee stock options Proceeds from disposal of treasury stock Increase in deposits-in Net cash provided by financing activities (71) 101 (3) 4 0 0 31 (2,098) 3,000 (96) 109 3 1 919 Effect of exchange rate changes on cash and cash equivalents Net increase in cash and cash equivalents (10) 26 (307) 772 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 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 Cash and cash equivalents at beginning of period 1,045 30,829 Cash and cash equivalents at end of period 1,071 31,601 Note: New Taiwan Dollars have been translated into U.S. Dollars at the March 31, 2012 exchange rate of NT $29.50 per U.S. Dollar. All figures are in ROC GAAP. Financial Table 4/4