Allied Circuit Co., Ltd. (ACCL), established in April 1995 in the Kwei-Shan Industrial Zone, Tao-Yuan, is a leading manufacturer of high-reliability printed circuit boards (PCBs). In August 1999, ACCL expanded with a new factory in Long-Tan, Tao-Yuan. The company has a registered capital of USD 16.5 million (512 million NTD) and is listed under stock symbol 8155. In 2020, ACCL achieved sales revenue of USD 102 million.

ACCL specializes in rigid-type multi-layer PCBs with 2 to 72 layers, as well as HDI boards with 4 to 72 layers (1+N+1, 2+N+2, 3+N+3). The company is capable of producing copper thicknesses up to 5oz and has a production capacity of 700,000 ft² (66,000 m²). Its manufacturing facility spans 472,202 ft² (43,869 m²).

Certified with IATF16949, QC080000, ISO-9001, ISO-14001, ISO-45001, and UL94V-0, ACCL is committed to maintaining the highest industry standards. With a workforce of 800 employees, including 80 R&D staff, ACCL continues to deliver innovative and reliable PCB solutions to its global clients.