Amitychem Corporation manufacture and supply high quality cis-1,2,3,6-Tetrahydrophthalic anhydride with low price and bulk supply. We have been focusing on the research and production of concrete chemicals for 14+ years. Our product quality has ISO, SGS, CQC,FAMI-QS, etc. Cetificated. So far, we have been exported to over 100 countries including USA, Germany, Vietnam, Korea, India, Pakistan, Singapore, Malaysia, Indonesia, Iraq, Russia, Uzbekistan, Brazil,etc. Hope we also have a chance to cooperate with you in near future.