Radius Gold Inc. is pleased to announce that it has signed a binding agreement with a private exploration company to option a 10,800 hectare property which hosts a low-sulphidation, epithermal silver-gold vein system located approximately 80 km ENE of the city of Guanajuato in Mexico. Radius has named the project “Santa Brígida” after the Santa Brígida vein, one of the historically mined veins on the property.

+50 Million Ounces of Silver Resource Grading 76 g/t silver within a Constraining Shell

Posterior al encuentro, se daría una audiencia pública en la que se trataría el tema de la barrenación que pretende hacer la empresa Frisco.

* Expects zinc demand to be steady in ’13

* Smelters seen obtaining higher treatment charges this year

Mammoth Resources Corp. is pleased to announce that it has received results from the X-Ray Diffraction (XRD) analysis performed on 72 samples collected on a portion of its 8,100 hectare Tenoriba project, located in southwestern Chihuahua State, Mexico. The XRD analysis identified the presence of numerous alteration minerals, which when combined with the presence of vuggy silica, silicic, advanced to intermediate argillic alteration, in rocks covering an approximate 15 square kilometer area, provide further compelling evidence that the Tenoriba project hosts a high-sulphidation precious metal target. The association of Kaolinite and Dickite in particular identifies almost complete acid attack of an advanced argillic alteration system, which is a compelling observation indicating a strong and active epithermal system. Refer to Figure 1. – Sample Location Map of XRD Samples, Tenoriba Project.

Riverside Resources Inc. is pleased to provide exploration results and program updates for recent work completed at the Company’s Naranjo and Huacana projects in Mexico. Both projects are being advanced under the iron-oxide copper gold (IOCG) Strategic Alliance with partner Cliffs Natural Resources Exploration Inc., a wholly-owned subsidiary of Cliffs Natural Resources Inc. Riverside is currently managing a fully funded USD$450,000 work program now underway at the Huacana Project. The exploration work program consists of geologic mapping and rock-chip sampling, soil and stream-sediment sampling, re-examination of previous drill core, analytical studies, and an aeromagnetic-radiometric survey. Soil and stream-sediment sampling data have been received and are being interpreted; initial results are confirming and expanding the previously known positive results for a porphyry copper system.

* Esperanza will acquire a portfolio of advanced stage gold projects including the La Bolsa project in Mexico, the Pico Machay project in Peru, the Calcatreu project in Argentina and related exploration properties from Pan American for consideration of 50,900,000 common shares and 10,000,000 warrants of Esperanza;

* Pan American will subscribe for 20,600,000 Common Shares of Esperanza at a price of $1.70 per Common Share representing a premium of 29% to the 20-day volume weighted average share price on the TSX Venture Exchange and a 48% premium to the closing price on February 22, 2013; and

* Esperanza and Pan American have committed to enter into a $15,000,000 standby convertible credit facility.