Connecting to virtually every major pipeline in the U.S. Gulf Coast and additional Midwestern lines, TC Energy’s Columbia Gulf Transmission System (CGT) ensures energy reaches where it’s needed most, adapting to evolving energy demands and shifting environmental priorities.

Learn more about the Project route and location in Illinois and Wisconsin.

tc-operations-map-natural-gas-2026.pdf

The map depicts the pipeline locations for NGTL Pipeline System in Alberta.

tce-2025-q4-results-presentation.pdf

tce-usng-emergency-response-plan-us.pdf

CALGARY, Alberta, Oct. 09, 2025 (GLOBE NEWSWIRE) -- News Release – TC Energy Corporation (TSX, NYSE: TRP) (TC Energy or the Company) today announced that TransCanada PipeLines Limited (TCPL) has closed an offering of US$350 million of 6.250 per cent Fixed-for-Life Junior Subordinated Notes due Nov. 1, 2085 (Notes). The Notes were offered through a syndicate of underwriters, co-led by Morgan Stanley & Co. LLC, BofA Securities, Inc., J.P. Morgan Securities LLC, RBC Capital Markets, LLC and Wells Fargo Securities, LLC.