Biel Crystal (HK) Mfy. Ltd.

36/F, Legend Tower, 7 Shing Yip St, Kwun Tong, Kln

Ching Mei Ind. Co.

Rm. C, 10/F, Fully Ind. Bldg, 6 Tsun Yip Lane, Kwun Tong, Kln

Hefei Jingweite Electronics Co. Ltd.

No. 2569, Yungu Rd, Economic Development Zone, Hefei, Anhui

Jadezone Optical (HK) Ltd.

Rm. 2508A, 25/F, Bank of America Tower, 12 Harcourt Rd.

Orient Optical Crystal Mfg., Co.

Rm. 1213, 12/F Tsuen Wan Industrial Centre, 220 Texaco Rpad., Tsuen Wan, New Territories

Paragon Crystal & Optics Technology Ltd.

Blk. B, 9/F, Winful Ind. Bldg, 15-17 Tai Yip St, Kwun Tong, Kln.

Somal Ind. (HK) Ltd.

Flat B, 7/F, Hang Cheong Fty. Bldg, 1 Wing Ming St, Lai Chi Kok, Kln.

Sun Yin Crystal Industry Co. Ltd.

Flat A & B, 13/F, 88 Kwai Cheong Rd, Kwai Chung, NT