- Headquarter
- Research Center
- Wonju Plant
- GPAC Shanghai
| Address | T Tower 10F, 30, Sowol-ro 2-gil, Jung-gu, Seoul, Republic of Korea |
| TEL | +82-2-6952-8377 |
| Address | Wavetech B/D 7F, 15, Iljik-ro 94gil, Anyang city, Gyeonggi-do, Republic of Korea |
| TEL | +82-31-436-1300 |
| Address | 66, Bansan 1-ro, Mummak-eup, Wonju-si, Gangwon-do, Republic of Korea |
| TEL | +82-33-748-8071 |
| Address | SOHO Tianshan Plaza. No.1717 Tianshan Rd. Changning District. Shanghai, China |
| cpac-sales@gpac-kpac.com | |
| TEL | +86-21-6237-1972 |
| FAX | +86-21-6237-1803 |