Headquarter in Hong Kong : MATRIX-SYSTEMS INTERNATIONAL ENTERPRISES LIMITED
West Wing 2/F, 822 Lai Chi Kok Road, Cheung Sha Wan, Kowloon, HongKong,
Branch in China : HuiZhou KaiDa Louis Ltd.,
5th floor, ShangYi bld., YuXin Technology Park, 
7 LongShan Road, XiangShuiHe Industrial Zone, DaYaWan,
 Huizhou City, GuangDong Province, China, 516083