We are HS CO., LTD company -the only one company produce PCA in VIET NAM with 100% Korea capital .we produce and trading PCA (Polycarboxylic acid )- our factory is in VIETNAMWe are Manufacturer and supply two kinds of products for concrete admixtures production with HS?S advanced synthetic process Our products:D-40 with high dispersion ability (low W/C),improved concrete setting time ,low concrete viscosity ,economical concrete design.R-40 with slump retention ,low concrete viscosity good combination with dispersion(D-40) Expecially our products can also be applied in civil engneerings and industrial construction. we always try to provide high quality products with strictly quality control at reasonable price .