Mountain Province Diamonds Announces Results of AGM Voting

Shares Issued and Outstanding: 80,715,558
TSX: MPV
NYSE MKT: MDM

TORONTO AND NEW YORK, June 15, 2012 /CNW/ - Mountain Province Diamonds Inc. ("Mountain Province", the "Company") (TSX: MPV, NYSE MKT: MDM) is pleased to announce that at its annual and special meeting of shareholders held in Toronto yesterday, the shareholders approved the election of the directors nominated by management, appointed KPMG LLP as the Company's auditors, and, subject to regulatory approval, the shareholders re-approved, confirmed and ratified the Company's stock option plan.  The stock option plan requires the shareholders' re-approval every three years with the next re-approval to be on or before June 14, 2015.

Mountain Province Diamonds is a 49% participant with De Beers Canada in the Gahcho Kué JV located at Kennady Lake in Canada's Northwest Territories. The Gahcho Kué Project consists of a cluster of four diamondiferous kimberlites, three of which have a probable mineral reserve of 31.3 million tonnes grading 1.57 carats per tonne for total diamond content of 49 million carats.

Gahcho Kué is the world's largest and highest grade new diamond development project. A December 2010 feasibility study filed by Mountain Province (available on SEDAR) indicates that the Gahcho Kué project has an IRR of 33.9%.

Forward-Looking Statements
This news release may contain forward-looking statements, within the meaning of the "safe-harbor" provision of the Private Securities Litigation Reform Act of 1995, regarding the Company's business or financial condition. Actual results could differ materially from those described in this news release as a result of numerous factors, some of which are outside the control of the Company.

Mountain Province Diamonds Inc.
Patrick Evans, President and CEO
161 Bay Street, Suite 2315
Toronto, Ontario M5J 2S1

Phone: [phone]

E-mail: [email protected]

www.mountainprovince.com