- Namsang Engineering Co. Limited
- Address:Bangna-trad Road km 25.5, bangsaothong, Samut Prakarn, Thailand
- Pump Systems Flux & Speck Co., Ltd.
- Address:Soi Anamai, Srinakarin Road, Suanluang, Other, Thailand
- SNT ENTERPRISE Co., Ltd
- Address:PETKASEAM, Thailand, Bangkok, Thailand
- Somkiat Engineering Co., Ltd.
- Address:171 Moo.8, Bangpleeyai, Other, Thailand
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