Marukai Corporation U.S.A. is an American offshoot chain of retail markets that imports and sells Japanese goods in American cities started by the Osaka, Japan-based Marukai Corporation, Incorporated. Unlike other Japanese supermarkets, which may carry non-Japanese products based on local diversity, Marukai has Hawaiian products as a core focus in addition to Japanese, not only in Hawaii, but all its stores. Its headquarters are in Gardena, California, in Greater Los Angeles.