CSX Corporation is a leading rail-based freight transportation company operating an extensive network of approximately 20,000 route miles serving major population centers east of the Mississippi River, along with Canadian operations and access to numerous ocean, river and lake port terminals. Through its principal subsidiary CSX Transportation and specialized operating companies, the company provides freight services to thousands of customers across diverse industries including automotive, chemicals, agriculture, energy, and construction, generating revenue through four primary business lines: merchandise shipments, intermodal container and trailer transport, coal and coke transportation, and trucking operations. CSX competes with other rail operators, motor carriers, and alternative transportation modes by offering cost-effective, environmentally efficient land transportation combined with comprehensive supply chain solutions through its network of terminals and partnerships with regional railroads.