Mr. Ian South Substantive roles Assistant SecretaryCentre for Population - Population Branchian.south@treasury.gov.auCanberra Phone 02 6263 4341 Assistant SecretaryInternational Engagement Branch02 6263 2082ian.south@treasury.gov.au G20 Sous SherpaMultilateral Economic Engagement(02) 6271 5349ian.south@pmc.gov.auhttps://www.pmc.gov.au/ Last updated: 19 November 2021