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BRIEF-UMC's April Sales Down 2.7 Percent Y/Y

May 9 (Reuters) - United Microelectronics Corp :

* SAYS APR SALES DOWN 2.7 PERCENT Y/Y AT T$12.1 BILLION ($391.03 million) Source text in Chinese: https://bit.ly/2VaB7ST Further company coverage: ($1 = 30.9440 Taiwan dollars) (Reporting by Hong Kong newsroom)