- PT Semen Gresik (Persero) Terbuka
- The Group's principal activity is manufacturing cement. types of cement manufactured are Type 1 Portland Cement (Ordinary - OPC ), II Cement, III V Oil Well (OWC), Super Masonry (SMC), Prima Mixed (PMC), Pozzolan (PPC) and Blended (SBC). plants located at Gresik Tuban in East Java, Indarung West ….
- Address:Jalan Veteran, Kav 7
- PT.SEMEN PADANG
- Address:jl. bukit indarung
- CV. Bangun Perkasa
- Address:JL. Tangguk Bongkar II No 28
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