ShanghaiLingdeChemicalTechnologyCo.,Ltd.ahi-techcompanyspecializinginthedevelopment,productionandmarketingof:UltrapureElectronicChemicals(mainlyUltrapureQuaternaryAmmoniumHydroxides),QuaternaryAmmoniumHydroxides,QuaternaryAmmoniumSalts,PhasetransferCatalysts(PTC),Otherfinechemicals.