| Region | Contact Person | Mobile | |
| Shanghai | Grace Yan | grace@ptrchina.com | 1891-811-2103 |
| Beijing | Huang Changming | huang@ptrchina.com | 1390-114-0184 |
| Wuhan | Liu Ling | jackie@ptrchina.com | 1343-717-5515 |
| Shenzhen | Wang Yu | wangyu@ptrchina.com | 1300-543-1715 |
PTR Essential Certification Workshop, National Marketing Distributor
Hongkong Yibang Co., Ltd
| Chen Jianwen | wen032@163.com | 363- 227-8846 |
PTR Group 60736183
Workshop Schedule
| 7th Mar-- 10th Mar | Shenzhen |
| 18th Apr-- 21th Apr | Beijing |
| 13th June-- 16th June | Wuhan |
| 20th June-- 23rd June | Shanghai |
| 30th July-- 2nd August | Quanzhou |
| 8th August- 11th August | Taizhou |
| 3rd Oct.- 6th Oct. | Beijing |
| 17th Oct.- 20th Oct. | Hunan |
| 12th Dec.- 15th Dec. | Shanghai |