your community.your community. S U M M E R 2 0 1 5

your lines. your lights. your lines. your lights.

On behalf of the entire ITC team I am thrilled to report that the Thumb Loop

project – the largest project in our company’s history – was completed and went

into service this spring, ahead of our original year-end completion date.

While we recently celebrated this achievement with community leaders in

Sanilac County where the project wrapped up, I’d like to take this opportunity to

acknowledge all of the landowners, communities and stakeholders throughout

Tuscola, Huron, Sanilac and St. Clair counties, as well as our alliance partners

and suppliers, who helped make this project possible.

The Thumb Loop project is the culmination of more than seven years of hard

work and dedication that began with Michigan’s 2008 Clean, Renewable and

Efficient Energy Act (Public Act 295), which created the Wind Energy Resource

Zone Board to study and identify regions with the highest wind potential. Of

the four prospective regions identified, the Thumb region displayed the highest

potential for wind energy in the state of Michigan. ITC’s Thumb Loop project was

designed to maximize this potential and is capable of supporting a maximum

capacity of 5,000 MW, with 1,000 MW of wind energy already integrated.

The benefits of this project are wide-ranging. Not only does the Thumb Loop

bring an increase in transmission system capacity and reliability while providing

more efficient transmission of renewable energy. It also had a direct impact of

$366 million to the Michigan economy, and will have a meaningful near- and

long-term impact on the state and region’s economy.

The Thumb Loop project also represents a long-term commitment to the

communities in which we operate, and I’d like to thank you for welcoming ITC

into your community and for your ongoing support over the years. n

Linda H. Blair

Executive Vice President, Chief Business Unit Officer and President, ITC Michigan

877.ITC.ITC9 (877.482.4829)www.itctransco.com

27175 Energy WayNovi, MI 48377

A MESSAGE FROM THE PRESIDENT

Thumb Loop Project Up and Running Ahead of Schedule

345 kVThumb Loop TRANSMISSION L INE PROJECT

On June 30, ITC was joined by

community leaders in Sanilac County

in celebrating the completion of

the Thumb Loop project. ITC Vice

President of Planning Tom Vitez spoke

to the group about the significance of

the project, and how it will increase

system reliability and integrate

renewables in Michigan.

Sanilac County Appreciation Event

TUSCOLA

HURON

SANILAC

ST. CLAIR

Rapson

Bauer Banner

Fitz

New Substations

Caro Sandusky

Bad Axe

PortHuron

31

2

TUSCOLA

HURON

SANILAC

ST. CLAIR

Rapson

Bauer Banner

Fitz

New Substations

Caro Sandusky

Bad Axe

PortHuron

PROJECT HISTORY

Construction of the Thumb Loop project began in 2012. It was put into service in three phases:

n Phase 1, consisting of 62 miles of lines and two substations in Tuscola and Huron counties, went into service in September 2013.

n Phase 2, includes 20 miles of lines in St. Clair and Sanilac counties, the Fitz Substation in St. Clair County and upgrades at the Greenwood substation; it was energized in May 2014.

n Phase 3, comprising 56 miles of line in Huron and Sanilac counties and the Banner substation near Sandusky, went into service in May 2015.

Land restoration and 120kV reconfiguration activities will continue into 2016.

345 kVThumb Loop TRANSMISSION L INE PROJECT

Construction HighlightsConstruction of the Thumb Loop project began in February 2012. The complete 140-mile project was energized in May 2015.

Community SpotlightWhile working to construct the Thumb Loop, ITC

was involved in many communities in Michigan’s

Thumb Region. Just as our assets are long-lived

in the community, ITC strives to build long-lasting

relationships with members of the communities we

serve. [photos continued, reverse]

your community.your lines. your lights.

Return Service Requested

222 Park Avenue, Suite 1Bad Axe, MI 48413

345 kVThumb Loop TRANSMISSION L INE PROJECT

About ITCTransmissionInternational Transmission Company (d/b/a ITCTransmission) is a wholly-owned subsidiary of ITC Holdings Corp., the nation’s largest independent electricity transmission company. Based in Novi, Michigan, ITCTransmission owns, operates and maintains approximately 3,000 circuit miles of transmission line in southeast Michigan, serving a population of 5.1 million. For more information, please visit http://www.itctransco.com. n