 The head office of Bank Indonesia and Indonesia Stock Exchange are located in the city.Most of the SOEs include Pertamina, PLN, Angkasa Pura, and Telkomsel operate head offices in the city, as do major Indonesian conglomerates, such as Salim Group, Sinar Mas Group, Astra International, Gudang Garam, Kompas-Gramedia, and MNC Group.The headquarters of the Indonesian Chamber of Commerce and Industry and Indonesian Employers Association are also located in the city.