Taipei, Jan. 21 (CNA) The Ministry of Labor (???) is investigating the alleged employment of foreign laborers at a plant of the Formosa Plastics Group (??) in Yunlin, with the results expected within a week, a labor official said Wednesday. Tsai Meng-liang (???), deputy director-general of the ministry's Workforce Development Agency, said that it began the investigation after being tipped off last December. He was responding to Legislator Hsu Chih-chieh (???) of the opposition Democratic Progressive Party (DPP,???), who called a news conference earlier that day to say that 560 of the 625 foreign laborers working at the sixth naphtha cracking plant's premises at Mailiao in Yunlin County are illegally employed. He said that while many foreign laborers come to Taiwan to work in the metalwork field, many of them are actually employed in construction. Tsai said the investigation centers on whether the actual work type matches the jobs applied for, including whether the plant management knows about the situation beforehand and whether contractors or labor brokerage firms have any responsibility in the matter. He cited one situation as an example, saying that if the contractors transfer foreign laborers to work in locations not in line with the terms of their work permits, they will be subject to fines of between NT$30,000 (US$947) and NT$150,000 and local governments will demand improvement from the contractors. If the contractors fail to make improvements, the ministry will revoke the foreign labor quota of the contractors and will also help affected foreign laborers to shift to other employers.