NGC is ISO 9001:2015 Quality Management System certified, ISO 14001:2015 Environmental Management System certified, GB/T28001:2011 Occupational Health and Safety Management System certified, as well as ISO/TS22163:2017 (International Railway Industry Standard) certified and API Specification Q1 (American Petroleum Institute) certified.

NGC has carried out third-party certification for its products according to market requirements. The 1.5 MW and above wind gearboxes have undergone DEWI, TUV, GL, CCS and CGC certification.

Locomotive traction gears used for rail vehicles are certified by the China Railway Test & Certification Center (CRCC), and have been supplied to the Chinese and North American markets since 2003; PSH380-01 series CRH gearboxes have obtained CRCC Railway Product Trial Certification.