3, Obong-Ro 6gil, Bukgu Daegu, 41552 – South Korea Tel 0082533523022 Fax 0082533533092 hwasung@hwasung-opt.com

38, Burim-Ro 170 Beon-Gil, Dongan-Gu, Anyang-Si, 14055 – South Korea Tel 82314289068 Fax +82314778617 johnkim@huvitz.com

Rm. 1203, 12f, Shun Kwong Commercial Building, 8 Des Voeux Road West, Sheung Wan Hong Kong – Hong Kong Tel 85225619202 Fax 85225791278 info@keics.com

Chenyu, Yuhuan Yuhuan, 317604 – China Tel 8618668623939 dunno@cnhuaqiang.com.cn

Via Bernardino Zenale 27 Garbagnate Milanese , 20095 – Italy Tel 02990711 anicolini@hoya.it

Alcalde Barnils, 72 Sant Cugat Del Valles, 08174 – Spain Tel +34932982605 contact@horizonsoptical.com

205 Rue Louis Berton Aix En Provence, 13290 – France Tel 0033442905216 jonquieres@horizane.fr

no15,2gil,Song Hyun Dong, Dalseo-Gu Daegu, 42741 – South Korea Tel 0082536282300 Fax 0082536285055 hoonsung21@hotmail.com