| USA, Canada, Australia | McLaughlin mclaughlinunderground.com | 2006 Perimeter Road, Greenville, SC 29605, USA |
| China | Look Engineering Co., Ltd. ybzhan.cn/st78670 | Rm. 718-720, No. 317 Longpan Middle Rd., Nanjing 210001, P. R. China |
| Korea | Optelcom Inc. www.optelcom.net | 3rd Fl., Samyoung Bldg., 7, Hakdongro 45-gil, Gangnam-Ku, Seoul 06061, Korea |
| Singapore | USAE Pte Ltd www.usae.com.sg | 48 Toh Guan Road East #03-125 & 126 Enterprise Hub Singapore 608586 |
