- Gigachem
- Address:92A Truong Chinh Street, District 12
- ESACO LAOCAI
- Address:Tang Loong Industrial Zone, Bao Thang Dist,
- Duc giang - Lao cai chemical JSC
- Address:Tang Loong
- Phu Yen Minerals Joint Stock Company
- Address:01 Nguyen Thi Minh Khai
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