Independent Audit
DATE | Crude Refiner (CDM) | Fine Refiner(Huayou) | |
2017 | RCS Global | Liz Muller | DNV GL |
2018 | DNV GL | Liz Muller | RCS Global |



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Responsible Supply Chain
Independent Audit
DATE | Crude Refiner (CDM) | Fine Refiner(Huayou) | |
2017 | RCS Global | Liz Muller | DNV GL |
2018 | DNV GL | Liz Muller | RCS Global |