MRK Holdings Inc. engages in the maternity and baby related business in Japan. The company offers maternity wear, nursing clothes, maternity innerwear, baby wear, and baby gifts. It is also involved in the body makeup, beauty, and wedding and banquet related businesses. The company was formerly known as Maruko Co., Ltd. and changed its name to MRK Holdings Inc. in October 2018. MRK Holdings Inc. was incorporated in 1978 and is headquartered in Osaka, Japan. MRK Holdings Inc. operates as a subsidiary of RIZAP GROUP, Inc.