Investor Presentaiton

Ridley Island Propane Export Terminal First mover competitive advantage Expected to be Canada's first West Coast propane export terminal " ■ Construction is underway and is expected to be in service by Q1 2019 Facility designed for 40,000 bbls/d of export capacity Brownfield site includes existing world class marine jetty with deep water access, excellent railway access which enables the efficient loading of Very Large Gas Carriers that can access key global markets ~10 day to Asia vs. ~25 days from the U.S. Gulf Coast Astomos Energy Corporation to purchase 50% of the propane shipped from the facility ■ Currently have close to 75% of supply secured Expect at least 40% of the facility's throughput to be underpinned by tolling arrangements ■ Entered into a strategic joint venture with Royal Vopak who will take a 30 percent interest in the Terminal Estimated project cost of $450 - $500 million¹ AltaGas 1 Expectations as at August 1, 2018. Total project cost; ownership will be 70% ALA and 30% Royal Vopak See "forward-looking information" AltaGas 42

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