We are HA NAM NINH TRADPRO CO., LTD, VIETNAM, specialize in calcium carbonate powder for plastic/rubber/paper/PVC pipe/animal feed/marine aquaculture, Granular limestone, Dolomite & Calcium Oxide.We hope to get a chance to cooperate with you in long term. If you have any request, do not hesitate to contact us for more information and get the best quotation.