In the late 1980s, China began to build color steel plate units. These units were built in steel plants and joint ventures. The color steel plate process equipment was basically imported from abroad. By the year 2000, domestically produced color steel plates reached 1.73 million tons, and there was an overcapacity. State-owned mega-steel enterprises have higher production capacity and equipment levels, and have successively built color steel plate units with foreign technology and annual production capacity of 120,000 to 170,000 tons.
At the same time, most of the private steel plates invested by private enterprises use domestically produced equipment, with low production capacity, but they are fast-moving and low-investment. The products are mainly for building materials and decoration industries. In addition, foreign capital and Taiwanese capital have also landed on the construction of color-painting units, but most of them are concentrated in coastal areas. Since 1999, with the prosperity of the color-coated board market, the production and consumption of color-coated sheets have entered a period of rapid growth. From 2000 to 2004, production increased at an average rate of 39.0%. By the end of 2005, the national color coated plate production capacity was more than 8 million tons per year, and a number of color coating units were under construction, with a total national production capacity of over 9 million tons per year.