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NATIONAL GRID PLC

NGG · NEW YORK STOCK EXCHANGE INC.

Pipeline Transportation of Natural Gas

National Grid plc is a British multinational electricity and gas utility company headquartered in London, England. Its principal activities are in the United Kingdom, where it owns and operates electricity and natural gas transmission networks, and in the Northeastern United States, where as well as operating transmission networks, the company produces and supplies electricity and gas, providing both to customers in New York, Massachusetts, and Rhode Island.