Holley International has the ability to be a general contractor of 10KV – 500KV power transmission line projects, 10KV – 500 KV transformer substation projects, 10 KV -500 KV electrical power system projects and communication projects. Through practice in electrical projects at home and abroad, our company has trained a group of professional technicians and management personnel who can build large and medium transmission and transformation projects.

Transmission line and substations