Qualification certificate of the consulting unit Grade C - petrochemical, chemical, construction, municipal public works (gas heat), other (new energy) 2016.8.15-2021.04.14
Engineering Design Qualification Certificate Original (Chemical Engineering, Water Pollution, Air Pollution Grade A) 2015.4.17-2019.05.12
Sunpower Technology: Environmental Engineering (Air Pollution Prevention and Control Engineering) Special Grade A 2015.05.12 to 2011.05.12
Engineering Design Qualification Certificate Original (Chemical Engineering, Water Pollution, Air Pollution Grade A) 2015.4.17-2019.05.12
Engineering Design Qualification Certificate Original (Chemical Engineering, Water Pollution, Air Pollution Grade A)
municipal public works (gas heat), other (new energy)
Grade a consulting qualification in thermal power and building materials
Engineering Design Qualification Certificate Original--Class b for chemical, petrochemical and pharmaceutical industries