Japan's Fair Trade Commission (FTC) said on Friday that it would issue warnings to Daiichi Pharmaceutical and Eisai Co Ltd for their role in an international cartel that price-fixed the market for vitamin products. The FTC said the two local firms were suspected of having violated Article 3 of the Japanese Anti-Monopoly Law, which prohibits the improper exclusion of competitors, and Article 6, which bans certain types of international agreements and contracts by companies.