Deyang is an important part of Cheng (Chengdu) De (Deyang) Mian (Mianyang) Economic District of the Sichuan province, a base for heavy machinery production in China. Companies with operations in Deyang include China National Erzhong Group, Dongfang Electric, and . Deyang produces large amounts of electrical equipment, including components for nuclear power plants, hydropower plants, steam turbines, and various casts.
