- Petronas
- Malaysia LNG Sdn Bhd
- Asean Bintulu Fertilizer Sdn Bhd
- Jimah O&M Sdn Bhd
- Sarawak Energy Bhd
- PGEO Edible Oils Sdn. Bhd.
- Total Petrochemicals S.E.A Pte. Ltd
- Prime Evolue Singapore Pte. Ltd.
- The Polyolefin Company (Singapore) Pte Ltd
- Petroveitnam Fertilizer
- Petrovietnam Gas
- PT. Wilmar Nabati Indonesia
- Emerson Process Managemen
- PTT Exploration and Production Public Company Limited
- PTT Global Chemical
- UBE Chemicals (Asia) Plc
- Thai MMA Co. Ltd
- Bangchak Corporation Public Company Limited
- Thai Oil Public Company Limited
- Shell Malaysia
- Petron Malaysia Refining
- Fonterra Malaysia
- Top Glove Corp Bhd
- Hartalega Holdings Bhd
- Henkel Oleochemicals (M) Sdn Bhd
- Dindings Poultry Processing Sdn Bhd
- Gardenia Bakeries Sdn Bhd
- Terasaki Sdn Bhd
- Proton Holdings Berhad
- Perusahaan Otomobil Kedua Sdn Bhd (Perodua)
- Autoliv Hirotako Sdn Bhd
- Denso (M) Sdn Bhd
- Technomeiji Rubber Sdn Bhd