Northisle Copper and Gold Begins Trading on the Tsx Venture Exchange

VANCOUVER, B.C. Northisle Copper and Gold Inc. (“Northisle” or the “Company“) is pleased to
announce that its shares will begin trading on the TSX Venture Exchange on Monday, October 24th, 2011
under the symbol “NCX”.

Corporate Development

Northisle is a Vancouver based junior resource company committed to the exploration and development
of the Island Copper-Gold Project on Northern Vancouver Island. Northisle was created to facilitate a plan
of arrangement initiated by Western Copper Corporation, a TSX Venture and NYSE AMEX listed
company. With the completion of the plan of arrangement on October 17, 2011, the Island Copper-Gold
Project and $2.5 million were transferred from Western Copper Corporation to Northisle.

Island Copper-Gold Project

The Island Copper-Gold Project surrounds the reclaimed BHP Island Copper Mine approximately 15-40
kilometres southwest of Port Hardy and contains the Hushamu Deposit and 5 other partially explored
copper-gold porphyry occurrences including NW Expo, Hep, South MacIntosh, Pemberton Hills and
Rupert.

2011 Fall Exploration Program

A 2011 fall exploration program at the Island Copper-Gold Project was initiated in August 2011 and will
include:

  • Updating the resource model of the Hushamu Deposit;
  • Resampling and analysis of the historic core for molybdenum and rhenium;
  • Tests for extensions of the Hushamu Deposit with 4,000m of drilling; and
  • 100 km of IP.

Management and Board of Directors

Dale Corman, B.Sc, P.Eng – Director and Non-Executive Chairman
Mr. Corman has over 40 years of experience as a senior officer of public companies with extensive
expertise in mineral exploration and development, financing, property evaluation and acquisition. He is
currently the Chairman and CEO Western Copper and Gold Corp.

Jack McClintock, MBA, P.Eng – Director, President and CEO
Mr. McClintock was the former global Exploration Manager for BHP Billiton and has over 30 years of
experience in the mineral exploration industry.

David Douglas, CA – Director, CFO and Corporate Secretary
Mr. Douglas is a Chartered Accountant with over 30 years of experience in the accounting, corporate
finance, and mining industries.

Robert Gayton, B.Com, Ph.D, FCA – Director
Mr. Gayton has directed the accounting and financial matters of public companies in the resource and
non-resource fields for over 25 years.

Chris Theodoropoulos, LL.B – Director
Mr. Theodoropoulos has 13 years of practicing corporate and securities law and 8 years as an
independent legal and business consultant. For the past 25 years he has served as a corporate director
for a number of resource and technology companies.

For more information on Northisle please visit the Company’s website at www.Northisle.ca.
On behalf of Northisle Copper and Gold Inc.

John McClintock

John McClintock
President, CEO and Director
info@northisle.ca
www.northisle.ca

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this news release.

This news release contains forward-looking statements. These forward-looking statements are based upon the reasonable beliefs of Northisle and its management as of the date of this news release; however, forward-looking statements involve risks and uncertainties and are based upon factors that may change and assumptions that may prove, with the passage of time, to be incorrect as a result of exploration and other risk factors associated with mineral exploration and development that are beyond the control of Northisle. Accordingly, undue reliance should not be placed upon such statements. If factors materially change or assumptions are materially incorrect, the actual results, performance or achievements of Northisle may be materially different from any future results, performances or achievements expressed or implied by such forward-looking statements. Northisle does not undertake any obligation to update or revise any forward-looking statements to reflect new information, future events or otherwise, except as required by applicable law.