R. Illiana Arifiandi

PT Kaltim Industrial Estate provides electric services. It engages in management of industrial estates that provide land for various natural gas companies in Bontang and surrounding areas. The firm divided into five segments : Industrial Area, Engineering and Construction, Property, Concrete and Trading. The company was founded on August 29, 1990 and is headquartered Bontang, Indonesia.

PT Pupuk Kujang manufactures and distributes fertilizers and industrial chemicals. Its products include fertilizers, petrochemicals, and chemicals for agro industry. The firm also carries out research studies, education, engineering design development, consulting and other technical services in the chemical industry and agriculture and plantation sectors. The company was founded on June 9, 1975 and is headquartered in Karawang, Indonesia.

PT Pupuk Indonesia manufactures and distributes fertilizers, petrochemicals, and agrochemicals. The firm operates through the following segments: Fertilizer and Ammonia, Construction Service. Its products include phosphate, organic fertilizers, cement retarder, aluminum fluoride, gypsum, liquid carbon dioxide, hydrochloric acid, ammonia, sulfuric acid, and phosphoric acid. The company was founded on December 24, 1959 and is headquartered in Jakarta, Indonesia.