This document is a comprehensive report on a company's activities throughout the preceding year.

Extending from New York state to the Midwest and Southeast, TC Energy’s Columbia Gas Transmission system moves the natural gas relied upon by millions of Americans for their energy and heating needs.

With more than 30 storage locations in four states, Columbia Gas Transmission Storage has enough capacity to handle almost 630 billion cubic feet of natural gas.

Iroquois is a 414-mile (666-km) interstate natural gas pipeline system that extends from the Canadian border to Commack and the Bronx, NY.

TC Energy’s Canadian Mainline safely delivers natural gas from Alberta and B.C. to eastern markets.

TC Energy Gas Storage Partnership manages a portfolio of strategically located natural gas storage facilities in Alberta, Canada, connected to the Nova Inventory Transfer (NIT) market hub via the NGTL System. These are the Crossfield and Edson Gas Storage facilities. TC Energy’s unregulated gas storage business is operated independently from its regulated affiliates.