News Releases

Toronto, Ontario - April 5, 2012 - Miocene Metals Limited (TSX-V: MII) (the "Company" or "Miocene Metals") announces that during March 2012 the Company effected its annual grant of stock options to its directors, officers and employees pursuant to its Stock Option Plan. Particulars of stock option grants issued to directors and officers of the Company and persons performing investor relations functions are as follows:

Name	Number of Stock Options
Bruce Jago	300,000
Alar Soever	375,000
Parviz Farsangi	250,000
Darryl Sittler	200,000
Tom Hussey	300,000
James J. Jackson	200,000
Mary Montgomery	200,000
Joey Garcia	200,000
Miranda Berukoff	150,000

The stock options are exercisable for common shares in the capital of the Company at $0.125 per share and expire five years from the date of grant. The stock options will vest over two years as follows: half of each stock option grant will vest one year from the date of grant and the remainder will vest two years from the date of grant. The total number of shares reserved and available for issuance pursuant to the Company's Stock Option Plan is 10% of the issued common shares. Total issued and outstanding common shares in the capital of the Company at the date hereof is 66,946,862. To date an aggregate of 5,590,000 stock options have been granted pursuant to the Stock Option Plan.

The closing price of the Company's common shares on the TSX Venture Exchange ("TSXV") over the past 20 trading days has ranged from a high of $0.125 to a low of $0.105.

About Miocene Metals Limited

Miocene Metals is focused on the exploration and development of seven porphyry copper-gold-molybdenum properties in south-western British Columbia that occur within the Tertiary-aged Cascade Magmatic Arc. The Cascade Arc shares many geological characteristics with Tertiary-age porphyry belts that stretch the length of Chile and Peru in South America and hosts some of the world's largest porphyry copper-gold-molybdenum deposits. The Cascade Magmatic Arc hosts a number of significant porphyry Cu-Au and Mo deposits in Washington State, and Alaska (Glacier Peak and Margaret, and Quartz Hill respectively) but remains largely unexplored in British Columbia.

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

For Further Information

Please visit the Miocene Metal's website at www.miocenemetals.com, or contact:

Bruce C. Jago, Ph.D., P.Geo
President and CEO of Miocene Metals
(604) 654-2581 or
bjago@miocenemetals.com

Miranda Berukoff
Vice-President Investor Relations
(604) 654-2585 or
mberukoff@miocenemetals.com