The Fair Trade Commission (FTC) yesterday filed suit against Carrefour Korea (QQ), arguing that the domestic arm of the French retailing giant has engaged in "inappropriate business practices." The FTC launched an investigation into the supermarket chain last November to determine if it had carried out "required duties" regarding allegations of improper business behaviour. These included imposing financial burdens on its subcontract companies; for instance, fees for advertisement, part time workers or sampling. Such "irrational transactions" brought in 97.8bn won for the chain last year, 57.1bn won in 1999 and 22.7bn won in 1998.