On July 13, the price of a carbon black factory in Jiangxi was stable. The price of wet-process N220 was 9300 yuan/ton, wet-process N330 was 8000 yuan/ton, wet-process N550 was 8600 yuan/ton, wet-process N660 was 8000 yuan/ton, and wet-process N234 was 9500 yuan/ton. The company's equipment operated smoothly.