Mariana Resources Ltd (TSX:MRY)(AIM:MARL) ('Mariana' or 'the Company'), the AIM and TSX quoted exploration and development company focused on South America, announces the appointment of Dr. Eric Roth as Non-executive Director to the Board, effective from 8 October 2012. Dr Roth, aged 46, currently resides in Santiago Chile.

Dr. Roth was most-recently President & CEO and then Director of Extorre Gold Mines Ltd ("Extorre") until Extorre was acquired by Yamana Gold Inc in June 2012. Prior to Extorre, Eric was engaged as a consultant on South American gold projects for Exeter Resource Corp. and Kinross Gold Corp. From January 2002 to March 2008 Dr Roth was employed by AngloGold Ashanti Ltd, initially as the Lima-based Peru Project and South American Opportunities Manager and subsequently as the Johannesburg-based Global Head of Greenfields Exploration.

Eric has a PhD in Economic Geology from the University of Western Australia and is a Fellow of the AusIMM. He is also principal of consulting firm ER Global Consulting SpA.

Dr Roth is considered an independent director and is also a member of the Mariana Board's Audit Committee.

Mariana's Chairman John Horsburgh said, "We are delighted that Eric has agreed to join Mariana as a Non-Executive Director. Mariana hopes to benefit from his extensive South American experience in advanced exploration and project development as well as his capital market and management experience as CEO of Extorre. We believe he will be a great asset to the Company"

There are no other matters which are required to be announced with regard to this appointment under paragraph (g) of Schedule 2 of the AIM Rules.

About Mariana Resources

Mariana Resources Ltd is an AIM and TSX quoted exploration and development company with an extensive portfolio of gold, silver and copper projects in South America. In southern Argentina, the Company's core gold-silver projects are Las Calandrias (100%), Sierra Blanca (100%), Los Amigos JV (49%) and Aguila-Picadero (100%). These projects are part of a 200,000+ Ha land package in the Deseado Massif epithermal gold-silver district in mining-friendly Santa Cruz Province. In Chile, Mariana has a joint venture with US based international mining and natural resources company Cliffs Natural Resources Inc., to explore for iron oxide-copper-gold deposits in a 92,000 km2 area in north-central Chile along the highly prospective Atacama Fault Zone.

On 19 December 2011, Mariana announced that AngloGold had completed a strategic placement whereby AngloGold was issued 45,000,000 shares in Mariana at a price of 12 pence per share. AngloGold has the right to maintain its equity of 19.9% in Mariana in further issues by Mariana.

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Contacts: In Australia: Mariana Resources Ltd John Horsburgh Chairman +61 2 94374588 Mariana Resources Ltd Glen Parsons CFO +612 94374588 RFC Ambrian Limited (Nomad) Rob Adamson +61 2 9250 0041 RFC Ambrian Limited (Nomad) Will Souter +61 2 9250 0050 In U.K.: Fox Davies Capital (Co UK Broker) Jonathan Evans +44 20 3463 5000 St Brides Media and Finance Ltd (PR) Felicity Edwards +44 20 7236 1177 RFC Ambrian Limited (Co UK Broker) Klara Kaczmarek +44 20 7634 4725 In Canada: Mariana Resources Ltd (Vancouver Office) Kathryn Witter +1 604 669 9336 www.marianaresources.com