OK便利店
By 1975, there were 1,000 Circle K stores across the U.S. In 1979, Circle K first expanded its reach into foreign markets via a licensing agreement which established the first Circle K stores in Japan by UNY; Until 2018, Circle K stores in Japan were run by the FamilyMart Company, that was named Circle K Sunkus Company until 2016 and was named Circle K Japan Company until 2004, which licensed the Circle K brand from Alimentation Couche-Tard. In 2018, all Circle K stores in Japan were converted to FamilyMart stores. In 1983, the number of stores increased to 2,180 with the purchase of the 960-store UtoteM chain in the western and southern United States.