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Rubicon Secures US$50 Million Loan Facility with CPPIB Credit Investments Inc.

TORONTO, ONTARIO--(Marketwired - May 14, 2015) - Rubicon Minerals Corporation (RMX.TO)(NYSE MKT:RBY) ("Rubicon" or the "Company") has entered into a financing agreement with CPPIB Credit Investments Inc. ("CPPIB"), a wholly-owned subsidiary of Canada Pension Plan Investment Board, for a US$50 million secured loan facility (the "Loan Facility"). The proceeds from the Loan Facility will be used for the development of the Phoenix Gold Project (the "Project") and to provide adequate working capital and flexibility to optimize the Project during the ramp-up period to potential commercial production.

"We are pleased to announce that Canada Pension Plan Investment Board has chosen to invest in Rubicon," said Michael A. Lalonde, President and Chief Executive Officer of Rubicon. "This financing is consistent with our approach to maintaining a strong balance sheet throughout and beyond the ramp-up period. Mill commissioning is now well-advanced. We have begun processing low-grade mineralized material, which will continue through the remainder of the second quarter as we fine-tune the mill circuit. We remain on schedule for projected initial gold production in mid-2015."

Loan Facility

The Loan Facility has a five-year term that will mature on May 12, 2020, with the entire principal amount payable at maturity. The Loan Facility bears an annual cash interest rate of 7.5%, compounded quarterly. In consideration for the Loan Facility, the Company has issued 10,000,000 warrants to CPPIB. Each warrant entitles CPPIB to acquire one common share of Rubicon for a period of five years from the date of closing at an exercise price of C$1.715, which represents a 30% premium to the five-day volume weighted average price of Rubicon shares on the Toronto Stock Exchange on closing. The common shares eligible for purchase through the warrants equate to approximately 2.5% of Rubicon's existing issued and outstanding shares. Rubicon has received the entire US$50 million from the Loan Facility, less applicable fees.

About Rubicon Minerals Corporation

Rubicon Minerals is an emerging gold producer focused on delivering shareholder value by growing free cash flow in low-risk jurisdictions. The Company will act responsibly, earning the respect and support of the communities in which it operates. Rubicon is focused on the completion and start-up of its Phoenix Gold Project in Red Lake, Ontario. The start of projected initial production remains on schedule for mid-2015, based on current forecasts. The Phoenix Gold Project is fully permitted for projected initial production to 1,250 tonnes per day. In addition, Rubicon controls over 100 square miles of prime exploration ground in the prolific Red Lake gold district and approximately 350 square miles of mineral property interests in the emerging Long Canyon gold district that straddles the Nevada-Utah border in the United States. Rubicon's shares are listed on the NYSE.MKT (RBY) and the Toronto Stock Exchange (RMX).

RUBICON MINERALS CORPORATION

Mike Lalonde, President and Chief Executive Officer

Cautionary Statement regarding Forward-Looking Statements and other Cautionary Notes

Forward-Looking Statements

This news release contains statements that constitute "forward-looking statements" and "forward looking information" (collectively, "forward-looking statements") within the meaning of applicable Canadian and United States securities legislation. Forward-looking statements include, but are not limited to statements regarding the anticipated use of the proceeds of the Loan Facility and projected initial production occurring in mid-2015.

Forward-looking statements are based on the opinions and estimates of management as of the date such statements are made and represent management's best judgment based on facts and assumptions that management considers reasonable. The material assumptions upon which such forward-looking statements are based include, among others, that: the demand for gold and base metal deposits will develop as anticipated; the price of gold will remain at levels that will render the Phoenix Gold Project economic; operating and capital plans will not be disrupted by operational issues, power supply, labour disturbances, or adverse weather conditions; Rubicon will meet its estimated timeline for the development of the Phoenix Gold Project; Rubicon will continue to have the ability to attract and retain skilled staff; the mineral resource estimate as disclosed in the Preliminary Economic Assessment with an effective date of June 25, 2013 and with an issue date of February 28, 2014 (the "PEA") will be realized; and there are no material unanticipated variations in the cost of energy or supplies, or in the pre-production capital and operating cost estimate as disclosed in the PEA.

Forward-looking statements involve known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements of Rubicon to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements. Such factors include, among others: possible variations in mineralization, grade or recovery rates; actual results of current exploration activities; actual results of reclamation activities; conclusions of future economic evaluations; changes in project parameters as plans continue to be refined; failure of equipment or processes to operate as anticipated; accidents and other risks of the mining industry; delays and other risks related to construction activities and operations; timing and receipt of regulatory approvals of operations; the ability of Rubicon and other relevant parties to satisfy regulatory requirements; the availability of financing for proposed transactions and programs on reasonable terms; the ability of third-party service providers to deliver services on reasonable terms and in a timely manner; market conditions and general business, economic, competitive, political and social conditions.

The PEA is preliminary in nature as it includes inferred mineral resources that are considered too speculative geologically to have the economic considerations applied to them that would enable them to be categorized as mineral reserves and there is no certainty that the PEA will be realized. Mineral resources that are not mineral reserves do not have demonstrated economic viability. The quantity and grade of reported inferred resources referred to in the PEA are uncertain in nature and there has been insufficient exploration to define these inferred resources as an indicated or measured mineral resource category.

It is important to note that the information provided in this news release is preliminary in nature. There is no certainty that a potential mine will be realized. A mine production decision that is not based on a feasibility study demonstrating economic and technical viability does not provide adequate disclosure of the increased uncertainty and specific risks of failure associated with such a production decision. While no production decision has been made, there are inherent risks in proceeding with the development of the project and the company's planning for the project and these include, gold price forecasts, capital cost overruns, availability of skilled labor, environmental compliance and restrictions, community matters, potential operating cost estimates, mining costs, development costs, underground mining and geotechnical risks, metal recoverability, milling costs, and related matters.

Forward-looking statements contained herein are made as of the date of this news release and Rubicon disclaims any obligation to update any forward-looking statements, whether as a result of new information, future events or results or otherwise, except as required by applicable securities laws. There can be no assurance that forward-looking statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on forward-looking statements.

Cautionary Note to U.S. Readers Regarding Estimates of Indicated and Inferred Resources

This news release may reference such terms as "measured" and "indicated" mineral resources and "inferred" mineral resources. The Company advises U.S. investors that while these terms are recognized and required by Canadian securities administrators, they are not recognized by the SEC. The estimation of "measured, "indicated" and "inferred" mineral resources involves greater uncertainty as to their existence and economic feasibility than the estimation of proven and probable reserves. The estimation of "inferred" resources involves far greater uncertainty as to their existence and economic viability than the estimation of other categories of resources. It cannot be assumed that all or any part of a "measured", "indicated" or "inferred" mineral resource will ever be upgraded to a higher category.

Under Canadian rules, estimates of "inferred mineral resources" may not form the basis of feasibility studies, pre-feasibility studies or other economic studies, except in prescribed cases, such as in a preliminary economic assessment under certain circumstances. The SEC normally only permits issuers to report mineralization that does not constitute "reserves" as in-place tonnage and grade without reference to unit measures. Under U.S. standards, mineralization may not be classified as a "reserve" unless the determination has been made that the mineralization could be economically and legally produced or extracted at the time the reserve determination is made. U.S. investors are cautioned not to assume that any part or all of a "measured", "indicated" or "inferred" mineral resource exists or is economically or legally mineable. Information concerning descriptions of mineralization and resources contained herein may not be comparable to information made public by U.S. companies subject to the reporting and disclosure requirements of the SEC.

Mineral Resources

Mineral resources that are not mineral reserves do not have demonstrated economic viability. The estimate of mineral resources may be materially affected by environmental, permitting, legal, title, taxation, socio-political, marketing, or other relevant issues. The quantity and grade of reported inferred resources in this estimation are uncertain in nature and there has been insufficient exploration to define these inferred resources as an indicated or measured mineral resource and it is uncertain if further exploration will result in upgrading them to an indicated or measured mineral resource category. The inclusion of inferred mineral resources are considered too speculative geologically to have the economic considerations applied to enable them to be categorized as mineral reserves. The mineral resources in this press release were reported using CIM Standards.

Qualified Persons

The content of this news release has been read and approved by Howard Bird, B.Sc., P.Geo., Vice President of Exploration and Mark Ross, B.Sc., P.Geo., Chief Mine Geologist for Rubicon. Both are Qualified Persons as defined by NI 43-101.

The Toronto Stock Exchange has not reviewed and does not accept responsibility for the adequacy or accuracy of this release.