Deyang (simplified Chinese: 德阳; traditional Chinese: 德陽; pinyin: Déyáng) is a prefecture-level city of Sichuan province, People's Republic of China. Deyang is a wealthy, mostly industrial city, with the Erzhong Heavy Machinery Company (中国二重), Dongfang Electrical Company (东方电机), and the high-tech industry contributing to its economy. It had a population of around 3,810,000 in 2004 and an area of 5,818 km2 (2,246 sq mi).[1]