Hunan Astar Bio-chemical Technology Co., Ltd. is a comprehensive Fine chemicals and Pharmaceuticals Intermediates manufacturer in China , Established in 2005 and located in Jinshi High Technology Industrial Zone of Hunan province registered capital: RMB 20 million, covering an area of 50,000 square meters. There are around 200 employees, of whom 40 people got the college education, we have passed the certificate of ISO9001:2008 Certificates . Our strong main products as follows : 1) 1,5,2,4-Dioxadithiane 2,2,4,4-tetraoxide (MMDS) 2) Methanedisulfonic acid, Methanedisulfonic acid disodium salt , Methanedisulfonic acid dipotassium Salt 3) 4-Hydroxybenzaldehyde and Salicylaldehyde We are the first industrial factory which produce 1 ,5,2,4-Dioxadithiane 2,2,4,4-tetraoxide (MMDS) on MT or Bulk quantity in China, our yearly production capacity will arrive 200MT in the following two years in our plan, our factory start to produce 1,5,2,4-Dioxadithiane 2,2,4,4-tetraoxide (MMDS) in 2016 , we have owned MMDS core production technology with our own Patent ,MMDS is a new type of electrolyte additives for lithium ion batteries, in the production of lithium-ion battery electrolytes, 1,5,2,4-Dioxadithiane 2,2,4,4-tetraoxide (MMDS) can completely replace 1,3-Propanesulfonate (1,3-PS, CAS number: 1120-71-4) ,the battery that add MMDS can greatly improve high temperature cycling performance of lithium-ion batteries, it can also greatly extend the life of lithium batteries ,Applies to batteries, in particular lithium manganese oxide as cathode materials for batteries, MMDS can melt under high temperature of Mn adsorbed on the electrode surface, inhibited the impedance increases, improved cycle characteristics . ASTARCHEM, a High-Tech enterprise of fine chemicals, converges on R&D, producing and sales. our plants as production base are located in Hunan province, we are constantly being upgraded with the necessary equipment and people to consistently produce high quality products and reduce costs. Our Sales Center locates in Shanghai responsible for both Home & Aboard, All of them organized strategically make sure best to respond to customer's requests. Built on the lasting development strategy, ASTARCHEM focuses on the policy of "Environment-friendly, High-Tech and creative", we have exploited and developed multiple advanced techniques in Chemical Synthesis and established a production system of security and environmental conservation. Also ASTARCHEM can offer a wide range of services from laboratory bench to large-scale manufacturing by providing samples, high yielding and reliable production solutions, like grades from grams to kilograms to tons. Based on philosophy of "Fact, Innovation, Honesty" and "Honest and Mutual Benefits", we will provide high quality products, most competitive prices and good service to customers all over the world. We sincerely hope to establish stable and strategic business relationship with good enterprises at home and abroad.