Jujuy, Argentina - March 10, 2008 - Soltera Mining Corp. ("Soltera") (OTCBB: SLTA - News; FRANKFURT: SN7 - News) is pleased to announce that it has acquired the underlying option agreement on the Eureka Property, a copper-gold prospect located in the Jujuy province of Argentina. The 10,192.34 hectare property is located in the northwest corner of the province, near the border with Bolivia and just 1 km from Soltera's El Torno gold property.

The option is to acquire 100% in the Eureka Property from the titleholder. TNR Gold Corp. ("TNR"), a Vancouver based mining company listed on the TSX with extensive experience in Argentina, has an option agreement with Soltera Mining Corp. to acquire a 75% interest in the property. TNR has agreed to spend a total of US$3,000,000 in exploration and option payments before April 30, 2010, with a minimum expenditure of US$500,000 per year. TNR has consented to the assignment of this underlying option agreement to Soltera. Further details regarding this assignment and details of the option agreement are expected to be filed on Form 8-K with the SEC by March 10, 2008.

The Eureka property contains "Red Bed-type" strata-bound copper mineralization within sedimentary strata consisting of sands, clays and conglomerates. The deposit is similar in style to major copper deposits in the Bolivian part of the Tertiary Belt. A geological estimate in the late 1990s (historical resources estimate which is not compliant with modern standards such as NI 43-101) was 50 to 60 million tons grading 1% copper. There is also some gold associated with parts of the copper deposit. Alluvial gold mineralization has been worked at the Eureka Mine since prior to the time of the Spanish arrival.

Only 70 meters of the 450-meter deep prospective Eureka formation has been explored to date, which leaves extensive upside potential. Exploration work will include detailed geological mapping, trenching, geochemical sampling and an IP survey. The property contains over 5 km of historic underground workings, of which the parts not flooded will be cleaned out, re-sampled and analyzed for copper, gold and other elements. Drilling will follow upon the completion of these works.

About Soltera Mining Corp.:
Soltera Mining Corp. is an exploratory stage mining company dedicated to increasing shareholder value through the acquisition of world-class mining properties in Argentina, Mexico and Canada. The company has leading individuals from the mining industry placed in key management and advisory positions. For more information about the company, please visit their Web site at www.solteramining.com.

About TNR Gold Corp.:
TNR Gold Corp. is a base and precious metals exploration company focused on aggressively identifying new prospective projects as well as fostering work on its large portfolio of 16 properties in Argentina and Alaska. The company's focus over the next 12 months is the exploration and development of its Eureka, El Salto and El Tapau properties in Argentina and Shotgun project in Alaska.For more information about the company, please visit their Web site at www.tnrgoldcorp.com.

Safe Harbor: This release includes forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 27E of the Securities Act of 1934. Statements contained in this release that are not historical facts may be deemed to be forward-looking statements. Investors are cautioned that forward-looking statements are inherently uncertain. Factors which could cause actual results to differ materially from those estimated by the company include, but are not limited to, government regulation; managing and maintaining growth; the effect of adverse publicity; litigation; competition; and other factors which may be identified from time to time in the company's public announcements.

Contact:
Soltera Mining Corp.
1-888-768-5552
E-mail: info@solteramining.com
Website: www.solteramining.com

Source: Soltera Mining Corp.