Integrated Management Systems surveillance  audit  of Nardis was conducted on 1, 6 and 7 december, 2022 based on ISO 9001:2015, ISO 14001:2015, ISO 45001:2018, ISO/TS 29001:2010 & E&P Forum HSEMS:1994 standards by SGS certification body and construction site in Normal Hexane Industrial Unit project as well as head office was audited and previous certification were extended without any non conformity.