Zhong Lei (left), an employee from China Railway No 4 Engineering Group, inspects construction work at the Anshun-Panzhou section of the Shanghai-Kunming Expressway. CHINA DAILY

Since joining State builder China Railway No 4 Engineering Group in 2006, Zhong Lei, a 44-year-old employee, has been working in the country's southwest for years.

His experience has made him understand that a construction job has a multitude of benefits — infrastructure connectivity, beautified environment, elevated wealth for people and bolstered industrial vitality.

Born in Dazhou, Sichuan province, Zhong joined CREC4 after graduating from Hefei University of Technology with a major in civil engineering. He later moved to Guizhou province to help build the Chongqing-Zunyi section of Lanzhou-Haikou Expressway.

With some 25,500 staff, CREC4's businesses are distributed across 31 provinces, municipalities, and autonomous regions on the Chinese mainland, as well as in 38 countries and regions, including Angola, Mongolia and Indonesia.