Beijing Shenneng Guangzheng Technology And Trade Co., Ltd. is an enterprise mainly specialized in the operation, import and export trade, study and development, processing and multipurpose use of coal, processing and production of coal product, coal product and dissipation energy product such as ferro alloys. The register address of our company is Haidian District, Beijing. We rely on China Coal Research Institute, China Coal Process and Multipurpose Use Society, China Coking Plant Industry Association, China University of Mining And Technology, Shougang Group Institute, China Ferro-Alloy Guild, Kaifeng Cleanse Coal Institute, junior college and research organization, with the emphasis on development, study, application and popularization for cleanse technology for Shenmu coal. At present, our company is mainly specialized in producing and exporting ferro alloys such as calcium silicon, magnesium silicon, ferro boron, metal magnesium, metal calcium, metal silicon and coal products, such as anthracite coal, formed anthracite coal, roasting foundry coke, roasting anthracite coal, anthracite filter products, active carbon and carburetant. The products are mainly sold to South Korea, Japan, Taiwan, the USA, the European Union, Russia, Ukraine, Mexico, India, Egypt, South Africa, Mongolia, the Middle East and Southeast Asian countries and areas.

Beijing Shenneng Guangzheng Technology And Trade Co., Ltd., from the establishment to now, makes a large leap every year. Through years' continuous bring forth and open up, now our company not only has own proprietary technology, but also has developed own production base, establishing relevant process production factory. Our company cooperates with China Coking Plant Industry Association and Shougang Group Institute Shenmu coal is used for coking plant coal blending. Our company also cooperates with Shanxi Coalification Institute and Kaifeng Coal Institute to develop smokeless environmental protection ovoid coal produced from Shenmu lam coke powder and to study and develop special class ovoid coal. These technologies change waste into valuable, conserving energy and reducing discharge, and also settle substantial science and technology basis for development. Our company has carried out industrialization for patent and technology, setting up fairly scope modern production lines and formulating enterprise standards for relative products in domestic market. Our company has particular scope through several years' development, and has particular fame in the same field.

Introduction of our products:
I. 3-Chlorophthalic Anhydride
1. CAS Number: 117-21-5
2. Formula: C8H3ClO3
3. MW.: 182.56
5 Properties: white or pale yellow flake or crystalline powder, boiling point, 313, melting point, 122~125, non-toxic and no odor at normal temperature.

II. 4-Chlorophthalic Anhydride
1. CAS number: 118-45-6
2. Formula: C8H3ClO3
3. MW.: 182.56
5. Properties: colorless or yellowish flake or cryst