Yuhui CH-NM is a premium grade macroporous n-methylglucamine chelating resin based on styrene-divinylbenzene (DVB) copolymers with standard Gaussian particle size distribution. Due to its special n-methylglucamine functional group, CH-NM has high selectivity to capture boric acid and borate. CH-NM is developed to be used for boron removal from ground water or irrigation water.