Zibo Qixiang Tengda Chemical Co., Ltd. (hereinafter referred to as "Qixiang Tengda") was established on January 4, 2002, and was listed on the Shenzhen Stock Exchange on May 18, 2010. The stock abbreviation is "Qixiang Tengda" and the stock code is : 002408. Up to now, Qixiang Tengda has more than 2000 full-time employees. It has wholly-owned subsidiaries Qingdao Siyuan Chemical Co., Ltd., Qixiang Tengda (Hong Kong) Co., Ltd., Zibo Qixiang Tengda Supply Chain Co., Ltd. and Holding subsidiaries Zibo Tenghui Grease Chemical Co., Ltd., Shandong Qilu Keli Chemical Research Institute Co., Ltd. The company has two main factories in Zibo and Qingdao. Among them, the Zibo factory covers an area of 2,295 acres and has three main production workshops: methyl ethyl ketone factory, rubber factory, maleic anhydride factory, and chemical factory; in addition, there are storage and transportation plants, water vapor company, quality inspection and measurement center, maintenance company, and electrical instrument center. Waiting for five auxiliary units. Qingdao Siyuan Chemical Co., Ltd., a wholly-owned subsidiary of the company, occupies an area of 230 acres, including methyl ethyl ketone production workshops and auxiliary production units. Since its establishment, Qixiang Tengda is based on the expansion and extension of the carbon four industry chain, and has now formed a complete carbon four component product line. Now it has a designed annual output of 240,000 tons of methyl ethyl ketone (MEK), 150,000 tons of butadiene, 50,000 tons of butadiene rubber, 150,000 tons of maleic anhydride, 200,000 tons of isooctane, 350,000 tons of methyl tert-butyl Production capacity of MTBE, 100,000 tons of propylene, 30,000 tons of isobutylene, 62,000 tons of tert-butanol, 20,000 tons of carboxyl styrene butadiene latex, 50,000 tons of disproportionated potassium rosinate soap and other products. Among them, the leading product, methyl ethyl ketone, has a number of core production technologies, with a domestic market share of about 46%, and exports accounting for more than 70% of all domestic exports; the maleic anhydride plant adopts the n-butane production process, and the products are exported to many countries and area. Qixiang Tengda has always adhered to quality as its life and implemented total quality management. It has passed the ISO9001 quality management system certification and has a complete product quality assurance system; at the same time, it takes safety and environmental protection as the guarantee, strictly implements HSE management, and completes the company's production safety assurance system. It has successively won the honorary titles of "China Chemical Top 500", "Shandong Province Contract-abiding and Credit-abiding Enterprise", "Shandong Province Labor Employment Service Star Enterprise", "Zibo City Industrial Meritorious Enterprise" and other honorary titles.