Sarens, world leader in heavy lifting, engineered transport and crane rental, is playing a major role in these upgrades and improvements, taking responsibility for the installation of 1,300 items throughout the plant, including, among others, the residual fluid catalytic cracking (RFCC) unit, which contains a first-stage regenerator weighing 1,198.9 tons and a second-stage regenerator weighing 902.5 tons. This operation, which required the use of an SGC-90 ring crane and a CC-8800-1 crawler crane, has enabled Sarens to make heavy lifting history in Indonesia, as the regenerator is the largest unit currently in existence in the country.