![Oyu Tolgoi on Twitter: "OT holds certificates for Environmental management systems ISO 14001 and Health and Safety Management systems OHSAS 18001. OT has just received the updated certificates sent by the international Oyu Tolgoi on Twitter: "OT holds certificates for Environmental management systems ISO 14001 and Health and Safety Management systems OHSAS 18001. OT has just received the updated certificates sent by the international](https://pbs.twimg.com/media/DqWI8LCU0AAa1L4.jpg)
Oyu Tolgoi on Twitter: "OT holds certificates for Environmental management systems ISO 14001 and Health and Safety Management systems OHSAS 18001. OT has just received the updated certificates sent by the international
Bureau Veritas Certification on LinkedIn: How certification to ISO standards adds value to your Organization
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