Head Office : Welland Industrial Co., Ltd.
　Address : 14F., No.238, Chi Hsieng Road., Rucho District, New Taipei City, Taiwan, R.O.C.
　Tel : +886-2-8285-2345
　Fax : +886-2-8282-7000
　Email : sales@welland.com.tw

　Factory : OptiMark Technology Co., Ltd.
　Address : Industrial Zone, Lincun, Tangxia, Dongguan City, Guangdong Province, China
　Tel : +86-769-3886-1818
　Fax : +86-769-8729-0605