PT Perusahaan Gas Negara (Persero) Tbk (PGAS) was started in 1859 during the Dutch colonial era as Firma L.J.N. Eindhoven & CO Gravenhage. It became a state-owned company on 13 May 1965. The company is a gas holding company with subsidiaries, such as PT Transportasi Gas Indonesia, PT PGAS Telekomunikasi Nusantara, PT PGAS Solution, PT Saka Energi Indonesia, PT Gagas Energi Indonesia, and PT PGN LNG Indonesia. The business activities are divided into four units: residential and small business, business, transport, and procurement. The project sites are spread all over Indonesia, including in Batam, Surabaya, and Tarakan. The head office is located on Jl. KH Zainul Arifin 20, Jakarta.