AVACF - Avance Gas Holding Ltd 2020 Q4 - Results - Earnings Call Presentation February, 19 2021 12:11 PM Avance Gas Holding Ltd The following slide deck was published by Avance Gas Holding Ltd in conjunction with their 2020 Q4 earnings call. For further details see: Avance Gas Holding Ltd 2020 Q4 - Results - Earnings Call Presentation