BRIEF-UMC Conducts Share Buyback Worth T$339 Mln
April 12 (Reuters) - United Microelectronics Corp :
* SAYS IT BUYS BACK 22.055 MILLION SHARES AT AVERAGE PRICE OF T$15.37 A SHARE
* SAYS SHARE BUYBACK WORTH T$339.04 MILLION ($11.57 million) Source text for Eikon: Further company coverage: ($1 = 29.2970 Taiwan dollars) (Reporting by Hong Kong newsroom)