- Thevaraya Co. Limited (A.T.E.Maskati Group)
- Ferro Alloys.
- Address:98 Moo 2 Tambon Bangtoey, Amphur Samphran Bangkok Nakhon Pathom 73210 Thailand
- Npie
- Ferro Silicon.
- Address:1225/27 Chan Rd. Bangkok Bangkok 10120 Thailand
- Nettel Tronics
- Mining, Manganese, Ore, Mineral, ferro.
- Address:1723 Udomsorayuth Bangpa-In Ayuthaya 13160 Thailand
- T. C. Mining International Co., Ltd
- copper ore,Metal ore,ilmenite,ferro titanium 30%,Chrysoprase,Blue Chalcedony,Purple Chalcedony,Others.
- Address:T. C. Builind 77 Soi Anumanrajadhon Suriwong Rd. Silom Bangrak
- Huge Elephant Co., Ltd.
- MANGANESE ORE,FERRO MANGANESE ORE.
- Address:373 / 661 PETCHABURI 12 PETCHABURI RD
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