TC Energy Corporation is a leader in the responsible development and reliable operation of North American energy infrastructure. The company specializes in natural gas transportation and storage as well as power generation assets. Its core activities include delivering natural gas to Canada the United States and Mexico including to export terminals that ship liquefied natural gas globally generating electricity in Canada and the United States primarily from nuclear energy but also from natural gas wind and solar assets and storing natural gas in Canada and the United States through regulated and non-regulated businesses.

TC Energy generates revenue primarily through the transportation of natural gas via its extensive pipeline networks the storage of natural gas and the generation and sale of electricity. The company earns income from long-term commercial arrangements and rate-regulated tolls for pipeline transportation and storage services. Revenue from power generation comes from electricity sales under long-term contracts or market-based pricing for its nuclear natural gas wind and solar facilities. These services are provided to a diverse customer base including utilities industrial users and LNG export facilities.

The company operates through the following segments: Canadian Natural Gas Pipelines U. S. Natural Gas Pipelines Mexico Natural Gas Pipelines and Power and Energy Solutions.

• The Canadian Natural Gas Pipelines segment focuses on the ownership and operation of natural gas pipeline systems in Canada including the NGTL System and related facilities. It provides firm transportation service for natural gas production from western Canadian sedimentary basins to markets in Canada and the United States. The segment includes investments in expansion projects such as the NGTL System Expansion Programs and the NGTL System Intra-Basin Expansion to increase throughput capacity and support growing demand.

• The U. S. Natural Gas Pipelines segment consists of natural gas pipeline systems in the United States that transport gas from supply basins to consuming markets. It includes regulated interstate pipelines that offer firm and interruptible transportation services under Federal Energy Regulatory Commission jurisdiction. The segment emphasizes pipeline integrity and modernization efforts to ensure safe and reliable operations while maintaining access to key demand centers.

• The Mexico Natural Gas Pipelines segment involves natural gas transportation infrastructure in Mexico that connects U. S. supply sources to Mexican demand markets. It supports the delivery of natural gas for power generation industrial use and residential consumption in Mexico. The segment benefits from long-term contracts and regulatory frameworks that provide stable cash flows and support cross-border energy integration.

• The Power and Energy Solutions segment encompasses electricity generation and natural gas storage assets. It includes nuclear power plants natural gas fired generation wind and solar facilities and underground natural gas storage operations in Canada and the United States. The segment focuses on extending the life and increasing capacity of nuclear assets while pursuing measured investments in complementary low-carbon technologies such as grid-scale energy storage.

TC Energy holds a strong position in the North American energy infrastructure industry due to its extensive asset base long-term contracts and conservative risk management approach. The company competes with other major pipeline operators such as Enbridge Kinder Morgan and Williams Companies in the natural gas transportation sector. In power generation it faces competition from utilities and independent power producers. Its competitive advantages include a diversified portfolio of regulated and contracted assets predictable cash flows and a proven ability to adapt to evolving energy markets and policy environments.

TC Energy serves a broad customer base that includes natural gas producers utilities industrial companies and LNG export terminals. Specific customer relationships are not detailed in the filing but the company's transportation and storage services support energy delivery across Canada the United States and Mexico. Its power generation assets provide electricity to wholesale markets and retail providers under long-term agreements. The company's infrastructure is designed to meet the needs of energy consumers and suppliers throughout the continent.