Montero Announces Increase of Offering Up to $5.8 Million

TORONTO, ONTARIO--(Marketwire - July 26, 2011) -

NOT FOR DISSEMINATION IN THE UNITED STATES OR OVER UNITED STATES NEWSWIRE SERVICES

Montero Mining and Exploration Ltd. (TSX VENTURE:MON) ("Montero") is pleased to announce that in connection with its previously announced private placement on July 5, 2011, it has increased the size of the offering to approximately 9,666,666 units (the "Units") at a price of $0.60 per Unit for gross proceeds of up to $5,800,000 (the "Offering"). Each Unit will consist of one common share in the capital stock of Montero ("Common Share") and one-half (½) of one Common Share purchase warrant ("Warrant"). Each whole Warrant will entitle the holder to acquire one Common for $0.80 for a period of 24 months from the date of issuance. Montero will have the option to force the conversion of the Warrants should the closing price at which the Common Shares trade equal or exceed $1.20 for 20 consecutive trading days following the date that is four months and one day after the date of issuance of the Warrants. Montero may accelerate the term of the Warrants to the date, which is 30 days following the date a press release is issued by Montero announcing the reduced term of the Warrants.

The securities issued pursuant to the Offering will be subject to a four month and one day statutory hold period. In connection with the completion of the Offering, Montero may pay, where appropriate, commissions and finder's fees in accordance with applicable securities laws and the rules of the TSX Venture Exchange ("TSX-V").

Montero intends to use the net proceeds from the Offering to fund continued exploration on Montero's assets, namely the Wigu Hill Rare Earth Project in Tanzania and for general working capital purposes. Trenching and drilling has been completed at the Twiga and Tembo targets at Wigu Hill and has yielded excellent results. Early reconnaissance sampling at the defined Tumbili target confirms the consistent mineralization of the bastnaesite bearing carbonatite and indicates the potential for a sizeable REE deposit. Exploration on all three targets at Wigu Hill will form the basis of Montero's upcoming National Instrument 43-101 resource estimate.

The Offering is subject to certain conditions including, but not limited to, the receipt of all necessary approvals, including the approval of the TSX-V and applicable securities regulatory authorities. Montero intends to close the Offering on or around July 29, 2011.

About Montero Mining & Exploration

Montero Mining and Exploration Limited is a mineral exploration and development company focused on the development of our flagship Wigu Hill Rare Earth Element Project in Tanzania. The Wigu Hill project is a high grade undeveloped Light Rare Earth Element deposit where the company's current focus is on reporting an initial NI 43-101 compliant resource on the first two of ten drill target areas tested to date.

Rare Earth Elements (a group of 15 metals) are critical in the advancement and development of emerging "green" technologies and high-tech applications such as electric and hybrid vehicles, wind and hydro power turbines, energy efficient lighting, LCD screens, MRI, X-ray machines and neodymium-based magnets crucial to ear-buds, MP3 Players, microphones, mobile devices and other computing equipment. Currently China produces 97% of world supply of REE's and these are becoming increasingly critical to both 21^st Century technological progress and environmentally sustainable development. With the rising prices of REE's and China's control over export quotas, it is becoming imperative that the rest of the world develops new rare earth resources to meet the increasing demand from "green" technology.

Montero's growth strategy is to develop the Wigu Hill Rare Earth Element project and to bring this to account by eventual rare earth production and cash flow. Montero plans to operate in an environmentally and socially responsible manner, adding value to all stakeholders. Montero trades on the TSX Venture Exchange under the symbol MON.

Signed. Dr. Tony Harwood - President and CEO

CAUTIONARY STATEMENT: This news release contains forward-looking information which is not comprised of historical facts. Forward-looking information involves risks, uncertainties and other factors that could cause actual events, results, performance, prospects and opportunities to differ materially from those expressed or implied by such forward-looking information. Forward looking information in this news release includes, but is not limited to, Montero's objectives, goals or future plans, and the estimated timing and cost of the exploration of the Wigu Hill Project. Factors that could cause actual results to differ materially from such forward-looking information include, but are not limited to, those risks set out in Montero's public documents filed on SEDAR. Although Montero believes that the assumptions and factors used in preparing the forward-looking information in this news release are reasonable, undue reliance should not be placed on such information, which only applies as of the date of this news release, and no assurance can be given that such events will occur in the disclosed time frames or at all. Montero disclaims any intention or obligation to update or revise any forward-looking information, whether as a result of new information, future events or otherwise, other than as required by law.