18Sep MARIYAM IGISSENOVA admin2019-09-19T08:36:40+00:00 Speakers SPEAKERS MARIYAM IGISSENOVA Head of Integrated planning system sector, “refining and marketing” division, KazMunayGas JSC MARIYAM IGISSENOVA Head of Integrated planning system sector, “refining and marketing” division, KazMunayGas JSC