Tanzania is a net importer of petroleum products. Petroleum products supply in Tanzania has been conducted through a Bulk Procurement System (BPS) since 2011. Under the BPS, purchases of petroleum products are made from a pool of imports obtained from suppliers selected through a competitive bidding process. The BPS covers the following grades of petroleum products: Automotive Gas Oil (AGO), Unleaded Motor Spirit Premium (MSP), Jet A-1, and Illuminating Kerosene (IK).