HTD Group (Hong Kong) Limited is an ISO9001:2008, ISO14001:2004, UL: E248237 and ISO/TS16949:2009 certificated pcb fabricating company, supply pcbs with good quality, competitive price and on-time delivery as follow: Single-sided PCB Double-sided PCB Multi-layer PCB Aluminum circuit board HDI board PCBA We have two manufacturing plants, over 1, 400 staff members in total, please refer to the following simple instructions: Shenzhen Plant---focus on 1 and 2 layer pcbs&＃039; prototype / mass production Jiangxi Plant---focus on 4 or above layer pcbs&＃039; prototype / mass production Any enquiries from you will be highly appreciated. Best regards, Frank Please note that I have been reallocated to HTD Shenzhen office. Here below is my update contact information Frank wang |International Depart manager | HTD-PCB No.A4 Lin Po Keng the 1st Industrial Zone Hao San Shajing Town Bao�an District Shenzhen City, Guangdong Province