Chronological order Union List (based on registered year) - 2007
- Phelps Dodge Thailand Workers Union
- Mitsamphan Auto Forging Thailand Workers Union
- CKD Thailand Worker Union
- Autosubcontract Workers Union of Thailand
- Empower Solidality Workers'Union
- Sanko Gosei Thailand Workers
- Valeo Rayong Workers Union
- Habiro Labour Union of Thailand
- Taproots Relations Labour Union
- JTEKT WORKERS UNION OF THAILAND
