Within their joint venture, BASF Petronas Chemicals Sdn. Bhd., BASF and Petronas Chemicals Group Berhad (PCG) operate a world-scale production plant for highly reactive polyisobutene (HR-PIB) with a total annual capacity of 50,000 metric tons of HR-PIB. The plant is the first of its kind in South East Asia. The manufactured HR PIB M products serve as important intermediate products for the manufacturing of high performance fuel and lubricant additives, including additives for sludge prevention.