MOS House Group Limited, an investment holding company, engages in the trading of tiles and bathroom fixtures in Hong Kong and Macau. The company sells its products through retail shops and non-retail channels. It is also involved in the property leasing and investment activities. The company was formerly known as RBMS Group Limited and changed its name to MOS House Group Limited in January 2018. The company was founded in 1998 and is headquartered in Wan Chai, Hong Kong. MOS House Group Limited is a subsidiary of RB Power Limited.