Hyundai Engineering (HEC) said that it would build a sulfur recovery unit (SRU), which recovers sulfur from hydrogen sulfide (H2S) generated during refining, and a hydrogen manufacturing unit (HMU) which produces high purity hydrogen, for the refinery. HEC's share is about $230 million.
In September 2019, Hyundai Engineering, affiliated with South Korea's Hyundai auto group, won a $2.17-billion deal from PT Pertamina to upgrade the refinery in Balikpapan. If completed, the refinery will increase its oil-refining output from 260,000 barrels per day to 360,000 barrels.
The Balikpapan refinery has been upgraded as part of a national project to improve Indonesia's energy security and increase the production capacity of refineries. Companies involved in the project include SK E&C, Hyundai Engineering, PT Rekayasa Industri and PT PP (Persero).