Steve Becker Appointed President TC PipeLines GP, Inc.
HOUSTON, Texas - August 17, 2010 - The Board of Directors of TC PipeLines GP, Inc.,
general partner of TC PipeLines, LP (NASDAQ: TCLP) today announced the appointment of
Steve Becker to the position of President of TC PipeLines GP, Inc. (the General Partner).
Becker succeeds Mark Zimmerman who will transition into the new role of Vice President,
Corporate Development and Strategy with TransCanada Corporation, the Partnership's
"On behalf of all Board members it's been a pleasure to work with Mark over the years," says
Greg Lohnes, Chairman of the Board of Directors. "He was instrumental in growing the
business and creating enduring value for unitholders through initiatives such as the acquisition
of North Baja and the restructuring of the sponsor's incentive distribution rights. We wish him all
the best in his new role with TransCanada. Going forward, we are very confident in our choice
of Steve Becker as Mark's successor and look forward to the future of TC PipeLines, LP under
Becker has served as a director of the General Partner since January 2007 and has most
recently held the position of Vice President, Pipeline Development for TransCanada
Corporation. He has over 30 years of experience, and since joining TransCanada in 1990, has
held positions in finance, natural gas marketing, strategy and business development. Becker
holds a Bachelor of Commerce degree (with distinction) from the University of Calgary and a
Master of Business Administration from the University of Western Ontario.
TC PipeLines, LP has interests in approximately 3,700 miles of federally regulated U.S.
interstate natural gas pipelines, including Great Lakes Gas Transmission Limited Partnership
(46.45 per cent ownership), Northern Border Pipeline Company (50 per cent ownership), North
Baja Pipeline, LLC (100 per cent ownership) and Tuscarora Gas Transmission Company (100
per cent ownership). Great Lakes is a 2,115-mile natural gas pipeline system serving markets in
Minnesota, Wisconsin, Michigan and eastern Canada. The 1,249-mile Northern Border Pipeline
transports natural gas from the Montana-Saskatchewan border to markets in the midwestern
United States. North Baja is an 80-mile bi-directional pipeline system that transports natural gas
between southwestern Arizona and a point on the California/Mexico border where it connects
with a natural gas pipeline system in Mexico. Tuscarora is a 240-mile pipeline system that
transports natural gas from Oregon, where it interconnects TransCanada Corporation's
Gas Transmission Northwest System, to markets in Oregon, California, and Nevada. TC PipeLines,
LP is managed by its general partner, TC PipeLines GP, Inc., an indirect wholly-owned
subsidiary of TransCanada Corporation. TC PipeLines GP, Inc. also holds common units of TC
PipeLines, LP. Common units of TC PipeLines, LP are quoted on the NASDAQ Global Select
Market and trade under the symbol "TCLP." For more information about TC PipeLines, LP, visit
the Partnership's website at www.tcpipelineslp.com.