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Sierra Iron Ore Corp Announces Warrant Extension

Share Capital & Compensation

NEWS RELEASE

June 12, 2013 Symbol:-TSXV.NAA Symbol:-OTC- SIOCF SIERRA IRON ORE CORP ANNOUNCES WARRANT EXTENSION

VANCOUVER, BC – Sierra Iron Ore Corporation (Symbol: NAA- TSXV/OTCQX:SIOCF) (the "Company") announces that it has applied to the TSX Venture Exchange, to extend the terms and amend the price of warrants (the “Warrants”) issued pursuant to a two tranche unit private placement which closed in June 2011 and September 2011, respectively. Warrants to purchase 1,769,291 common shares will be extended to expire on September 1, 2013 at an amended exercise price of $0.40. The un-amended exercise price was $1.00 and the Warrants would have otherwise expired on June 19, 2013. Warrants to purchase 123,180 commons shares will expire on September 18, 2013 at an amended exercise price of $0.40. The unamended exercise price was $1.00.

For more information contact Corey Safran, Investor Relations, at 609-228-0595, or by email at [email protected].

About Sierra Iron Ore

Sierra Iron Ore is a growth focused mineral exploration company creating value through the exploration and development of the El Creston property located in the Sinaloa State of Mexico. The company has a continual fieldwork program at the El Creston Property that is comprised of drilling, mapping, sampling and planning for further property development. Roads have been built and upgraded and equipment has been mobilized for further developing the known magnetite zones identified by recent exploration work.

Sierra Iron Ore also has 100% ownership of the Tom Cat property which is located 200 kilometres east-northeast of Vancouver within the historic Aspen Grove copper camp. The company is currently conducting an exploration program of geological mapping and sampling program as a prelude to a planned diamond drill program.

On behalf of The Board of Directors of Sierra Iron Ore Corporation.

Paul Lee, Director

Neither 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 press release, which has been prepared by management.

Canada: USA:

C206 – 9801 King George Blvd. #2 – 701 West Deer Valley Road Surrey, BC V3T 5H5 Phoenix, AZ 85027 Tel: (604) 581-0004 Tel: (623) 251-4443 Fax: (604) 585-9606 Fax: (623) 251-4878

www.sierrairon.com [email protected]