Seoul: Unionized workers of Samsung Electronics Co., the world's largest memory chip maker, have voted against a tentative wage agreement with the company, industry sources said Thursday. Some 58.6 percent of the 22,000 voters from the National Samsung Electronics Union (NSEU) voted to reject this year's wage deal, according to the sources.According to Yonhap News Agency, the deal was reached last week following a monthlong strike staged by the union in July. Wage negotiations between the management and the NSEU began in January. The NSEU represents some 36,000 workers, or about 30 percent of the company's total workforce.The rejected agreement included a 5.1 percent pay hike and other bonuses. The two sides are expected to have new rounds of talks later this week, sources said.