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CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
Net revenues: |  |  |
-Non-related parties | $ 1,879,247,942 | $ 1,495,509,056 | $ 630,961,165
-Related parties | 19,674,164 |  |
Total net revenues | 1,898,922,106 | 1,495,509,056 | 630,961,165
Cost of Revenue |  |  |
-Non-related parties | 1,696,421,523 | 1,266,737,444 | 552,856,159
-Related parties | 20,218,969 |  |
Total cost of revenues | 1,716,640,492 | 1,266,737,444 | 552,856,159
Gross profit | 182,281,614 | 228,771,612 | 78,105,006
Operating expenses: |  |  |
Selling expenses | 69,341,229 | 47,109,261 | 22,088,657
General and administrative expenses | 86,268,786 | 54,519,646 | 46,323,959
Research and development expenses | 19,838,547 | 6,843,216 | 3,180,372
Total operating expenses | 175,448,562 | 108,472,123 | 71,592,988
Income from operations | 6,833,052 | 120,299,489 | 6,512,018
Other income (expenses): |  |  |
Interest expense | (43,843,586) | (22,164,363) | (9,458,983)
Interest income | 8,446,647 | 6,935,560 | 5,084,227
Gain (loss) on change in foreign currency derivatives | (5,750,981) | 1,656,928 | 9,870,333
Foreign exchange gain (loss) | (40,007,403) | (36,291,898) | 7,680,503
Investment income (loss) | (41,163) | (2,853,403) | 1,788,036
Income (loss) before income taxes | (74,363,434) | 67,582,313 | 21,476,134
Income tax benefit (expense) | (16,539,940) | (16,753,917) | 1,302,065
Net income (loss) | (90,903,374) | 50,828,396 | 22,778,199
Less: net income (loss) attributable to non-controlling interest | (99,174) | 259,477 | 132,315
Net income (loss) attributable to Canadian Solar Inc. | $ (90,804,200) | $ 50,568,919 | $ 22,645,884
Earnings (loss) per share-basic (in dollars per share) | $ (2.11) | $ 1.18 | $ 0.61
Shares used in computation - basic (in shares) | 43,076,489 | 42,839,356 | 37,137,004
Earnings (loss) per share-diluted (in dollars per share) | $ (2.11) | $ 1.16 | $ 0.60
Shares used in computation-diluted (in shares) | 43,076,489 | 43,678,208 | 37,727,138

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