Chengdu Design and Research Institute of Building Materials Industry Co., Ltd (Sinoma-CDI) established in1953, a member of CNBM Group under SASAC (State-owned Asset Supervision and Administration Commission), No.247 of Global Top 500, subsidiary of Sinoma International Engineering  Co., Ltd., No. 44 in ENR 2022. SINOMA CDI, is one of the earliest established industry design and research institutes in China, and has become one of world-leading EPC contractors and integrated service provider.

Construction of public sports, repair and maintenance of dams, construction of cement plants, construction of dams, repair and maintenance of roads and streets, repair of residential and non-residential buildings, construction of public housing, cleaning of waterways.