- Blue bay mineral
- Address:263, praketawella, pilimathalawa
- JAYA BIMA TRADING
- Address:
- Sri Quart
- Address:Hunupitiya Cross Road
- al-arif gem and jewellery( pvt
- Address:164 waidya road dehiwela srilanka
- MG Holding
- Address:No 45, Bandaranayaka Mw
- Tharaka Chem
- Address:1090 Amaragoda Road
- Latha Enterprise
- Address:Old Cross Street
- hinin Lanka Company (Pvt) Ltd
- Address:
- Ceylon Mineral
- Address:#37, Palmyrah Avenue
- powernet technologies
- Address:23 / 5 / C, Katuwalamulla, Welipillewa
- Sri Quarts
- Address:Hunupitiya Cross Road,
- SHIFANI GEMS
- Address:87, Dunuwila Road
- waranga mine
- Address:Gallenahena Watta
- TIME (Pvt) Ltd
- Address:167 Koswatta Road
- Blue bay minerals
- Address:263, praketawella, pilimathalawa
- Asian Investments & Mercantile Services (Pvt) Ltd.
- Address:No: 10, Gurupura, Rideepana
- Juhama marketing service.
- Address:no, 55 Messenger street
- Ceylon Minerals
- Address:#37, Palmyrah Avenue
- Chandana Thanthirige
- Address:80 / 1 Shanthi Mawatha Kahalla
- Deora
- Address:Echelon Square