機械部業務内容
1.化学設備/台プラ　プロファイ　グループ
(1) Rotating machinery of advanced technology and higher efficiency by using high-tech components to effect automatic and higher precision control (i.e. compressors & pumps): for utility plants, conventional refinery plants, petrochemical plants, engineering plastics plants,petrochemical plants, engineering plastics plants.
Business category: sales, after service and coordination with manufacturers.
(2) Extruder for ABS, PC, PC+ABS compound, PC+PS compound: for ABS, PC, resin plants & downstream compounding plants and processing plants.
(3) Ring section screen pipe for water filtration, water well such as water resource development.
Business category: sales, technical advice under cooperation with manufacturers.
(4) By making use of good connection and relationship with Taiwan Plastic Group Companies, to act as advisor for all Mitsui Taiwan several business sectors.

2.インフラ　グループ
(1) Transportation: Railway business (including High Speed Rail Project and its affiliated business), Ships business (LNG Carriers, Container Vessels and Bulk Carriers)..
(2) Industrial Equipment: Various harbor facilities.
(3) Power Plants: Various equipment for power plants.

3.高雄分室
(1) Heavy Machinery for Ferrous and Nonferrous Industries.
(2) Environmental Equipment.
(3) Industrial Furnace.