PT Semen Indonesia (Persero) Tbk engages in the production and distribution of cement. It operates through the following segments: Cement Production and Non-Cement Production. The Cement Production segments produces and markets cement products. The Non-Cement Production segment includes limestone and clay mining, cement bag manufacturing, industrial real estate, precast and readymix concrete, IT services, logistics, and trading. The company was founded on March 25, 1953 and is headquartered in Jakarta Selatan, Indonesia.