Petra Asia Limited

801, New Landwide Commercial Building 73, Kimberley Road, Tsim Sha Tsui, Kowloon,
Hong Kong,

C & Brothers Gems Company Limited

220-222 mahaesak soi 2 suriyawong Bangrak,
Bangkok,

C.C. & S.S. Gems Limited

148 Soi Mahesak Mahesak Road, Bangrak,
Bangkok,

Carats & Grams Company Limited

8th Floor, Unit D, 297 Wanglee Building Suryawonse Road, Suriyawong Bangrak,
Bangkok,

Morris And Watson (Thailand) Limited

46/4, Charoenraj Road Wat-Prayakrai, Bangklo, Bangkorlaem,
Bangkok,

Chanthaburi Boonkumkrong Stone Factory Group Company Limited

Unit F, 297, Wanglee Tower 6th Floor, Surawong Road Khwaeng Suriyawong, Bangrak,
Bangkok,

Tivoli Stone Company Limited

1195/1, Charoenkrung Road Siphaya, Bang Rak,
Bangkok,

Choice Gems Company Limited

34/6 Trok Trocadero Surawong Road,
Bangkok,

Colorfully Gems Company Limited

41th Floor, 919/484 Jewelry Trade Center Building Silom Rd., Silom , Bangrak,
Bangkok,

Colour Stone Impex Company Limited

35th Floor, 1249 Gems Tower Building Suite 213C, Charoenkrung Road SOI 47/3,
Bangkok,