Mainstream Minerals Corporation Announces Changes to the Board and Management

Mainstream Minerals Corporation (the "Company" or "Mainstream") (TSX
VENTURE:MJO) announces the resignations of Mr. Mike Romanik as President, CEO
and director and Mr. Raymond Prefontaine as Chief Financial Officer and the
Company has appointed Mr. David Reid as President, CEO and interim CFO of the
Company, in their stead. Mr. Reid has been a director of Mainstream since
October, 2012. Previously, Mr. Reid was Director, Business Development of
Northern Gold Mining Inc. from October 2012 to May 2013. He was Vice-President,
Investor Relations and Business Development of Trelawney Mining and Exploration
Inc. from December 2009 to June 2012. Prior thereto, Mr. Reid owned, operated
and was the President and Chief Executive Officer of a private transportation
company. He has over 30 years of business experience with fleet and maintenance
operations as well as 10 years' experience in underground mechanical
maintenance.


Mainstream has also accepted the resignation of Mr. James Darcel as a director
of the Company. The Company is pleased to announce that Mr. Chris Irwin has been
appointed a director to fill the vacancy.


Mr. Irwin practices securities and corporate/commercial law and has been the
managing partner of Irwin Lowy LLP since January 2010; prior thereto he was the
President of Irwin Professional Corporation from August 2006 to December 2009;
and prior thereto he was an associate at Wildeboer Dellelce LLP from January
2004 to July 2006. Mr. Irwin advises a number of public companies, board of
directors and independent committees on a variety of issues. Mr. Irwin is a
director and/or officer of a number of public companies. Mr. Irwin is a former
Director of Trelawney Mining and Exploration Inc., which successfully completed
a $608 million plan of arrangement with IAMGOLD Corporation in June 2012; former
Director of Southern Star Resources Inc., which was formerly listed on TSX prior
to becoming Gold Eagle Mines Ltd. and being taken over by Goldcorp Inc. in a
$1.5 billion transaction.


The board of directors and management of Mainstream would like to thank Messrs.
Romanik, Prefontaine and Darcel for their respective contributions to the
Company and wish them every success in their future endeavours.


This news release may contain forward-looking statements including but not
limited to comments regarding the timing and content of upcoming work programs,
geological interpretations, receipt of property titles, potential mineral
recovery processes, etc. Forward-looking statements address future events and
conditions and therefore, involve inherent risks and uncertainties. Actual
results may differ materially from those currently anticipated in such
statements.


FOR FURTHER INFORMATION PLEASE CONTACT: 
Mainstream Minerals Corporation
David Reid
Director, Business Development
705.254.8303
[e-mail]