How many industrial factories does Changsha Petroleum have?

Major industrial factories in Changsha have basically closed down in the past, but now they are mainly concentrated in Xingsha Development Zone, such as Sany Heavy Industry, Yuanda Air Conditioning, LG Electronics, Changfeng Cheetah, Beiqi Futian, Huatian Aluminum, Liyuan New Materials and Xiangjiang Coatings. There are Changsha Cigarette Factory, Zoomlion (including Puyuan), Hunan Daily Chemical and Jiuzhitang in the city. And some are in Lugu, such as You Xiang Science and Technology.