AVACF - Avance Gas Holding Ltd 2021 Q4 - Results - Earnings Call Presentation February, 22 2022 08:03 AM Avance Gas Holding Ltd The following slide deck was published by Avance Gas Holding Ltd in conjunction with their 2021 Q4 earnings call. For further details see: Avance Gas Holding Ltd 2021 Q4 - Results - Earnings Call Presentation