TriMetals Mining Inc. Obtains Approval for Its Plan of Operations on the Nevada Side of the Gold Springs Property

VANCOUVER, BRITISH COLUMBIA--(Marketwired - April 3, 2014) - TriMetals Mining Inc. ("TMI") (TSX:TMI)(TSX:TMI.B)(OTCQX:TMIAF) reports that on March 27, 2014, the US Bureau of Land Management (BLM) Caliente Office of the State of Nevada issued a Record of Decision ("RD") and a Finding of No Significant Impact ("FONSI") for TMI's Environmental Assessment (EA) covering the Nevada portion of the Gold Springs project. The acceptance of the Environmental Assessment means that the Company is free to begin the work proposed in its Plan of Operations, which envisions staged exploration activities focused on the expansion of the Grey Eagle resource and the future exploration of 13 of the 18 identified outcropping gold targets located in Nevada. Exploration and resource expansion activities are now authorized to proceed without the need for any additional permitting.

Ralph Fitch, President and CEO stated, "The issuance of the RD and associated FONSI is an important step in the advancement of the Gold Springs project. The Environmental Assessment included studies of plants, animals, and archaeology as well as public comment, so our ability to move forward following this process is an important commentary on the location and mining friendly jurisdiction in which Gold Springs is located. Our next step, as reported last week, is to complete a NI 43-101 compliant Preliminary Economic Assessment, subsequent to which we will develop plans for the future of the Project."

In the state of Utah, TMI will be initiating the Plan of Operations permitting process in the weeks to come and expects to have approvals before the end of the year. TMI is currently permitted for an additional 56 drill sites within Utah which allows for future resource expansion on the Jumbo target and exploration activities on other gold targets within Utah. Nevada and Utah represent very favorable mining jurisdictions which should allow for the continued development of the Company's Gold Springs assets in a timely fashion.

The Gold Springs Project:

Resources: (NR February 26, 2014)

The current Measured and Indicated resource was announced in the February 26, 2014 news release and stands at 21,289,000 tonnes @ 0.5 g/t Au and 9.8 g/t Ag for a contained 339,000 troy ounces gold and 6,687,000 troy ounces silver plus an inferred resource of 16,674,000 tonnes @ 0.4 g/t Au and 9.1 g/t Ag for an additional 214,000 troy ounces gold and 4,857,000 troy ounces silver using a 0.2 g/t Au cutoff. This equates to an M&I resource of 456,000 ounces AuEq averaging 0.67g/t AuEq and an additional 299,000 ounces AuEq @ 0.56 g/t AuEq in the Inferred category. The Inferred resource is in addition to the Measured and Indicated resource. Gold equivalent (AuEq) calculations reflect gross metal content using the gold/silver ratio of 57.14, and have not been adjusted for metallurgical recoveries.

To date, resource drilling has only been carried out on portions of two of 18 areas of outcropping gold mineralization and on none of the even more extensive geophysical anomalies at Gold Springs.

Management believes there is a significant opportunity to increase the resource.

About TriMetals Mining Inc.

TriMetals Mining Inc. is a growth focused mineral exploration company creating value through the exploration and development of the near surface, Gold Springs gold-silver project in mining friendly Nevada and Utah in the U.S.A.; the advancement of the large scale Escalones copper-gold project in Chile, and realization of value from the expropriated Malku Khota project in Bolivia through the arbitration process. The Malku Khota project is owned by TMI's wholly owned subsidiary South American Silver Limited, which is a company incorporated in the Bermuda Islands, an overseas territory of the United Kingdom, which through its wholly owned Bahaman subsidiaries: Malku Khota Ltd, G.M. Campana Ltd. and Productora Limited., owns 100% of the outstanding shares of Compañía Minera Malku Khota S.A., a Bolivian company, holder of the Malku-Khota mining concessions until their nationalization by the Bolivian Government. The Company's approach to business combines the team's track record of discovery and advancement of large projects, key operational and process expertise, and a focus on community relations and sustainable development. Management has extensive experience in the global exploration and mining industry. The Company's common shares and Class B shares are listed on the Toronto Stock Exchange under the symbols "TMI" and "TMI.B" and the common shares trade on the OTCQX market under the symbols "TMIAF". Additional information related to TriMetals Mining Inc. is available at www.trimetalsmining.com and on SEDAR at www.sedar.com.

Forward-looking statements

Forward-looking statements look into the future and provide an opinion as to the effect of certain events and trends on the business. Forward-looking statements may include words such as "begin", "expansion", "future", "will", "next", "plan", "should", "proceed", "continue", "believes", "creating", "realization" and "pursue" and similar expressions. This News Release contains forward-looking statements. Information concerning mineral resource estimates and the interpretation of drill, metallurgical testing and other exploration results may also be considered forward-looking statements as such information constitutes a prediction of what mineralization might be found to be present if and when a mining project is actually developed. These forward-looking statements are based on current expectations and various estimates, factors and assumptions and involve known and unknown risks, uncertainties and other factors.

Readers are cautioned not to place undue reliance on these statements as the Company's actual results, performance or achievements may differ materially from any future results, performance or achievements expressed or implied by such forward-looking statements if known or unknown risks, uncertainties or other factors affect the Company's business, or if the Company's estimates or assumptions prove inaccurate. Therefore, the Company cannot provide any assurance that forward-looking statements will materialize. Factors that could cause results or events to differ materially from current expectations expressed or implied by the forward-looking statements, include, but are not limited to, risks of the mineral exploration industry which may affect the advancement of the Escalones or Gold Springs projects, including possible variations in mineral resources or grade, metal prices, availability of sufficient financing to fund further required work in a timely manner and on acceptable terms, timely receipt of required permits, availability of equipment and qualified personnel, failure of equipment or processes to operate as anticipated, road access to the property, changes in project parameters as plans continue to be refined; uncertainties associated with the arbitration proceeding against Bolivia, including the quantum of damages to be obtained and the realization or collection of the value of any award or settlement; and other risks more fully described in the Company's Annual Information Form filed and publicly available on SEDAR at www.sedar.com. The assumptions made in developing the forward-looking statements include: the continuing support for mining by local governments in Nevada, Utah and Chile; the accuracy of current resource estimates and the interpretation of drill, metallurgical testing and other exploration results; the timely receipt of required permits for Escalones and Gold Springs projects; the availability of equipment and qualified personnel to advance the Escalones and Gold Springs projects; the execution of the Company's existing plans and further exploration and development programs for Escalones and Gold Springs Projects, which may change due to changes in the views of the Company or if new information arises which makes it prudent to change such plans or programs; the ability of the Company to realize value from its investments in Bolivia; the arbitration proceeding along a timeline consistent with other international arbitrations and the Fund honoring its contractual commitment.

Subject to applicable laws, the Company assumes no obligation to update or revise any forward-looking statement, whether as a result of new information, future events or any other reason. Unless otherwise indicated, forward-looking statements in this News Release describe the Company's expectations as of April 3, 2014.