Sustainable development Sustainable development Certificates MMC NORILSK NICKEL Certificate: ISO 9001 ISO 14001 Audit frequency: Surveillance audit — annually, recertification audit — every three years Date of last audit: December 2020: recertification audit (Desk Audit phase, remote) October—November 2020 Auditor: Bureau Veritas Certification KOLA MMC Certificate: ISO 9001 ISO 14001 OHSAS 18001 Audit frequency: Surveillance audit — annually, recertification audit — every three years Date of last audit: August—September 2020 Auditor: Bureau Veritas Certification GIPRONICKEL INSTITUTE Certificate: ISO 9001 Audit frequency: Surveillance audit — annually, recertification audit — every three years Date of last audit: October 2020 Auditor: Societe Generale de Surveillance (SGS) NORILSK NICKEL HARJAVALTA Certificate: ISO 9001 ISO 14001 ISO 45001 Audit frequency: Surveillance audit — annually, recertification audit — every three years Date of last audit: September 2020 Auditor: British Standards Institution NKOMATI Certificate: ISO 9001 ISO 14001 OHSAS 18001 Audit frequency: recertification audit — every three years Date of last audit: September 2018 Auditor: DQS MMС NORILSK NICKEL (Murmansk Transport Division, Nadezhda Metallurgical Plant, Copper Plant) Certificate: ISO/IEC 27001:2013 Audit frequency: Surveillance audit — twice a year, recertification audit — every three years Date of last audit: February—September 2020 Auditor: British Standards Institution