VANCOUVER, BRITISH COLUMBIA--(Marketwired - May 28, 2015) - NioGold Mining Corp. (News - Market indicators) ("NioGold" or the "Company") is pleased to announce the closing of a private placement on an underwritten basis with Cormark Securities Inc. (the "Underwriter") pursuant to which the Company issued a total of 3,975,000 units ("Units") (including the exercise of the Underwriter's option in full) at a price of $0.38 per Unit and 4,226,000 flow-through common shares ("Flow-Through Shares") at a price of $0.50 per Flow-Through Share of the Company for aggregate gross proceeds to the Company of C$3,623,500 (the "Offering"). Each Unit consisted of one common share ("Common Share") and one-half of one Common Share purchase warrant ("Warrant"). Each whole Warrant shall be exercisable into one Common Share at a price of $0.50 for 24 months following the closing of the Offering.

As consideration for their participation in the Offering, the Underwriter received a cash commission of up to 6% of the proceeds of the Offering (other than in respect of certain orders) and received a total of 437,460 broker warrants, each broker warrant exercisable for one common share at a price of $0.38 for 24 months following the closing of the Offering.

The securities issued in connection with the Offering are subject to a hold period of 4 months expiring on September 29, 2015.

The Company's insiders subscribed to Units and Flow-Through Shares offered under the private placement (the "Insiders' Participation"). The Insiders' Participation is exempt from the formal valuation and minority shareholder approval requirements provided under Regulation 61-101 respecting Protection of Minority Holders in Special Transactions ("Regulation 61-101") in accordance with sections 5.5(a) and 5.7(1)(a) of said Regulation 61-101. The exemption is based on the fact that the market value of the Insiders' Participation or the consideration paid by such insider does not exceed 25% of the market value of the Company.

The net proceeds from the sale of the Units will be used to fund the exploration and development of the Company's mineral properties in Québec, Canada and for general corporate and working capital purposes. The gross proceeds from the sale of the Flow-Through Shares will be used to incur "Canadian Exploration Expenses" ("CEE") that are "flow-through mining expenditures" (as such terms are defined in the Income Tax Act (Canada)) on the Company's properties in Québec which will be renounced to the subscribers with an effective date no later than December 31, 2015, in the aggregate amount of not less than the total amount of the gross proceeds raised from the issue of Flow-Through Shares. The CEE shall be incurred no later than December 31, 2016.

The Offering was completed on a private placement basis pursuant to prospectus exemptions of applicable securities laws and is subject to final acceptance by the TSX Venture Exchange.

As a result of the private placement, 129,215,874 common shares of NioGold are issued and outstanding.

This press release does not constitute an offer to sell or a solicitation of an offer to buy any of the securities in the United States. The securities have not been and will not be registered under the United States Securities Act of 1933, as amended (the "U.S. Securities Act"), or any state securities laws and may not be offered or sold within the United States or to or for the account or benefit of a U.S. person (as defined in Regulation S under the U.S. Securities Act) unless registered under the U.S. Securities Act and applicable state securities laws or an exemption from such registration is available.

NioGold Mining Corp. - « On Canada's Golden Highway »

NioGold Mining Corp. is a mineral exploration and development company focused on gold. The Company's projects are located in the heart of Québec's prolific Abitibi gold mining district. The Cadillac, Malartic and Val-d'Or mining camps in this district have produced over 45 million ounces of gold since the 1930's and presently encompass six producing gold mines, including the prolific Canadian Malartic mine located adjacent to NioGold's flagship Marban project. NioGold's land holdings within the Abitibi presently cover 125km2 and encompass seven former gold producers, notably the Norlartic, Kierens, Marban and Malartic Hygrade mines that collectively produced 630,000 ounces of gold.

NioGold's experienced and qualified technical team are overseeing the advancement of these projects, targeting expansion of the resource base and reserve definition of the Marban Block project.

NioGold invites you to visit the company website at www.niogold.com

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined the policies of the
TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this news release.

FORWARD-LOOKING STATEMENTS

This news release includes "forward looking statements", as that term is defined in Section 27A of the Unites States Securities Act of 1933, as amended, and Section 21E of the United States Exchange Act of 1934, as amended, that are subject to assumptions, risks and uncertainties. Statements in this news release which are not purely historical are forward looking statements, including without limitation any statements concerning the Company's intentions, plans, estimates, expectations or beliefs regarding the future. Although the Company believes that any forward looking statements in this news release are reasonable, there can be no assurance that any such forward looking statements will prove to be accurate. The Company cautions readers that all forward looking statements, including without limitation those relating to the Company's future operations and business prospects, are based on assumptions none of which can be assured, and are subject to certain risks and uncertainties that could cause actual events or results to differ materially from those indicated in the forward looking statements. Readers are advised to rely on their own evaluation of such risks and uncertainties and should not place undue reliance on forward looking statements.

Any forward looking statements are made as of the date of this news release, and the Company assumes no obligation to update the forward looking statements, or to update the reasons why actual events or results could or do differ from those projected in the forward looking statements. Except as required by law, the Company assumes no obligation to update any forward looking statements, whether as a result of new information, future events or otherwise.

CAUTIONARY NOTE TO U.S. INVESTORS

The United States Securities and Exchange Commission (the "SEC") permits U.S. mining companies, in their filings with the SEC, to disclose only those mineral deposits that a company can economically and legally extract or produce. The Company may use certain terms in this news release, such as 'measured resources', 'indicated resources' and 'inferred resources', which the SEC guidelines strictly prohibit U.S. registered companies from including in their filings with the SEC. The news release may contain information about adjacent properties on which the Company has no right to explore or mine. U.S. investors are cautioned that mineral deposits on adjacent properties may not be indicative of mineral deposits on the Company's properties.