About Us 》Contact US
A4 Global Contact:
E-mail: info@a4tech.com.cn
Tel: +86 (769) 8209-7855
Dongguan, China
5-Link Technology Co.,ltd.
Xiwang Industrial District, Tiantangwei, Fenggang Town,Dongguan City, Guangdong, China
USA Contact:
E-mail: info-usa@a4tech.com
Tel: +1 (909) 628-8858
Chino, California (For North America Inquiries only)
A4 Taiwan Office:
E-mail: info@a4tech.com.cn
Tel: +886-2-2218-4952
New Taipei, Taiwan
PERFECT BEST ASSET MANAGEMENT INC.
25F-2, NO.111, Min-Chuan Rd., Hsin-Tien City,Taipei County 231, Taiwan(R..O.C.)