BrazilNitro QuimicaBrazilNitriflex S/A Industria E Comercio
BulgariaNeochim PLC
CanadaNexen Inc.CanadaNova Chemicals CorporationCanadaNacan Products LimitedCanadaNitrochem Corp.
Nissan Chemical Industries Ltd.Nichia Chemical Industries Ltd.NOF CorporationNew Zealand Pharmaceuticals LimitedNorsk Hydro ASANational Pharmaceutical Industries Co. SAOGNational Detergent Company S.A.O.G.Nafta-Lendava
South AfricaNalco-Chemserve
SwedenNolato Medevo AB
SwitzerlandNitrochemie AGNovartis International AGSwitzerlandNestle Research Center
United Arab EmiratesNational Industries Group
United KingdomNepera Ltd.United KingdomNicholas Laboratories LtdUnited KingdomNorit (UK) LtdUnited KingdomNewport Industries Limited
United StatesNan-Ya Plastics CorporationUnited StatesNalco Chemical Co.United StatesNational Starch and Chemical CompanyUnited StatesNational Casein Co.United StatesNepera Inc.