Beijing ChemSun PharmTech Co.,Ltd, located in Beijing Fengtai Science Park, is a competitive player in the global specialty and fine chemical market. Focusing on developing the innovative technologies for organic synthesis, CHEMSUN has both the expertise and flexibility to produce a wide range of chemicals, such as fluorine organic chemicals, chiral intermediates, and heterocyclic chemicals. CHEMSUN also performs custom synthesis, contract manufacturing and toll manufacturing providing the ...