Investor Presentaiton

AltaGas' Northeast B.C. Strategy Provides new market access for Western Canadian propane producers to Asia Propane shipped to Asia Prince Rupert Blair Creek Raw gas Liquids mix piped to NGL facility and rail terminal Townsend North Pine Facility Younger Truck Terminal Liquids Pipelines (NGL mix and condensate) - Existing Liquids Pipelines (NGL mix and condensate) OFort St. John Ridley Island Propane Export Terminal (RIPET) $450 $500 Million¹ In service: Q1 2019 ☐ Expected to be Canada's first propane export terminal, located on B.C's west coast ■ Will provide producers with access to key markets to the west, including Asia, with significant shipping cost advantages vs. the Gulf coast ■ 40,000 Bbls/d of export capacity >40,000 bbl/d of C3 shipped to Asia C4 and C5+ railed to Propane railed to tidewater Fort Saskatchewan Fort Saskatchewan Ferndale Gas Processing Gas Processing Under Development Expansion to Existing Facility LPG Terminal LPG Terminal Construction Montney ++++ Rail Edmonton North Pine NGL Facility In service: Dec. 1, 2017 Townsend Phase 2A Gas Processing Facility In service: Oct. 1, 2017 ☐ ◉ NGL facility serving Montney producers in NE B.C. First train consists of 10,000 Bbls/d of C3+ processing capacity, with capacity of 6,000 Bbls/d of C5+ Connected by rail to Canada's west coast, including to RIPET Doubling the Townsend gas processing complex, phase two will consist of two separate gas processing trains First train (2A) is a 99 MMcf/d shallow-cut natural gas processing facility AltaGas 1 Total project cost; ownership is 70% ALA and 30% Royal Vopak Expectations at August 1, 2018 See "forward-looking information" 9

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