INCASI RAYA, PT West Sumatera Crude Palm Oils, Lard Oils, Lard Stearin, Other Palm Kernel Oils, Ir. Zainal Arifin, Sumadi Gunawan, Husdi Gunawan. incasi@incasiraya.co.id (62-751) 32465, 32044 (62-751) 32597 Jl. Diponegoro No. 7