ATGFF - AltaGas Ltd. 2021 Q3 - Results - Earnings Call Presentation October, 29 2021 07:06 PM AltaGas Ltd The following slide deck was published by AltaGas Ltd. in conjunction with their 2021 Q3 earnings call. For further details see: AltaGas Ltd. 2021 Q3 - Results - Earnings Call Presentation