Taipei (AFP) - Taiwanese tycoon Wei Ying-chung was slapped with nearly 140 fraud charges on Thursday over his alleged role in Taiwan's latest food safety scare, prosecutors said.Wei, one of Taiwan's richest men, faces a 30-year jail term if convicted as prosecutors indicted him on 60 accounts of fraud and 79 account of aggravated fraud in addition to violating food safety laws for selling tainted cooking oil.Wei is ex-chairman of Wei Chuan Foods Corp.