| i. | UMC carried out treasury stock program and repurchased its shares from the centralized securities exchange market. The purpose for repurchase, and changes in treasury stock during the years ended December 31, 2016 and 2017 are as follows: |
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For the year ended December 31, 2016 (In thousands of shares) |
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Purpose |
As of January 1, 2016 |
Increase | Decrease | As of December 31, 2016 |
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For transfer to employees |
333,814 | 200,000 | 133,814 | 400,000 | ||||||||||||
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For the year ended December 31, 2017 (In thousands of shares) |
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Purpose |
As of January 1, 2017 |
Increase | Decrease | As of December 31, 2017 |
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For transfer to employees |
400,000 | — | — | 400,000 | ||||||||||||
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