Maeil Dairies used to mark selling prices for its formula powder products in advance and compel their distributors to adhere to such prices. Particularly on December 23, 1997, Maeil Dairies raised prices of formula powder products by specifying retail prices and also setting recommended resale prices, thereby forcing distributors and other customers to comply with its price plan. Moreover, Maeil Dairies’ branches made their employees check the resale price through training and group meetings and also had them report whether their customers complied with its recommended prices and also urged non-complying customers to raise prices. In particular, the company notified that it would stop supplying the products unless its customers and distributors followed its price scheme.