2021 NGTL System Expansion Project. The Western Canada Sedimentary Basin (WCSB) is one of North America’s most prolific natural gas production basins, and it is of key importance to the Canadian economy. Given the production of natural gas in Alberta and B.C., the most important requirement for WCSB producers is getting their product to market. Natural gas producers have asked NOVA Gas Transmission Ltd. (NGTL) to increase natural gas transportation service on our existing natural gas pipeline system in Alberta. We have approval to construct and operate multiple pipeline sections and compressor unit additions as part of the 2021 NGTL System Expansion Project (the project). N AB Proposed 48-inch (1219 mm) pipeline components SK Proposed compressor Vallhalla North Section station components 35.7 km of pipeline Proposed compressor 1 station components GRANDE PRAIRIE Existing NGTL pipelines Elmworth Section 46.9 km of pipeline 2 Karr Section 3 56.8 km of pipeline Deep Valley North Section 69.1 km of pipeline 4 Deep Valley South Section 69.1 km of pipeline 5 Colt Section 13.5 km of pipeline 6 10 January Creek EDSON 7 Control Valve EDMONTON Robb Section 41.8 km of pipeline 8 Dismal Creek Section Nordegg Compressor Station BC 31.8 km of pipeline Unit Addition 11 Brewster Section 9 48.6 km of pipeline RED DEER ROCKY MOUNTAIN HOUSE 12 Didsbury Compressor Station Beiseker Compressor Station Unit Addition & Coolers Unit Addition & Coolers 13 CALGARY Timelines and construction partners 2021 NGTL System 2020 2021 2022 Expansion Project Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Valhalla North Pipeline Elmworth Pipeline Karr Pipeline Deep Valley North Pipeline Deep Valley South Pipeline Colt Pipeline Robb Pipeline Dismal Creek Pipeline Brewster Pipeline January Creek Control Valve Nordegg Compressor Station Didsbury Compressor Station Beiseker Compressor Station 1. Valhalla Pipeline Section – Midwest Pipelines Inc. 2. Elmworth Pipeline Section – Midwest Pipelines Inc. 3. Karr Pipeline Section – Surerus Murphy Joint Venture 4. Deep Valley North Pipeline Section – Michels Canada 5. Deep Valley South Pipeline Section – Macro Industries 6. Colt Pipeline Section – Macro Industries 7. Robb Pipeline Section – Waschuck Pipe Line Construction Ltd. 8. Dismal Pipeline Section – To be confirmed later in 2021 9. Brewster Pipeline Section – Steel River SICIM Pipeline Ltd. 10. January Creek Control Valve – Boom Construction Ltd. 11. Nordegg Compressor Station Unit Addition – Strike Group 12. Didsbury Compressor Station Unit Addition – Strike Group 13. Beiseker Compressor Station Unit Addition – Aecon Group Inc. TCEnergy.com.