We,HunanAstarBio-chemicalTechnologyCo.,Ltd.foundedin1999,wehavebeentheleadingproducerofEthylVanillin,Vanillian,P-Hydroxybenzaldehyde(4-Hydroxybenzaldehyde),Methanedisulfonicacid,Methanedisulfonicaciddisodiumsalt,MethanedisulfonicaciddipotassiumSaltandPharmaceuticals&AgrochemicalsIntermediatesinthewholeChina.ASTAR,ahightechnicalenterpriseoffinechemicals,convergesonR&D,producingandsales.ourheadquarterlocatesinHometownofJiangNvMeng,aChastewomaninChineseHistory—JinShi,Changde,Hu...