IDM Mining Closes Second Tranche of $6 Million Flow-Through Private Placement

VANCOUVER, British Columbia, Sept.13, 2017(GLOBE NEWSWIRE) -- IDM Mining Ltd. (TSX-V:IDM) (OTCQB:IDMMF) ("IDM" or the "Company") is pleased to report that it has closed the second tranche of the flow-through private placement as announced on August 21, 2017.The second tranche of the offering was comprised of 3,227,500 flow-through common shares of the Company at $0.155 per share, for gross proceeds of approximately $500,262.50.

The non-brokered flow-through financing was primarily subscribed to by several new institutional flow-through funds, as well as existing shareholders and insiders.

The Company will pay to certain finders a total of $30,016 and 193,650 non-transferable warrants.Each warrant entitles the holder to purchase one common share at a price of $0.23 for a period of twelve months.

The securities issued in the second tranche of the offering are subject to a four-month hold period that will expire on January 14, 2018.

This press release does not constitute an offer to sell or the solicitation of an offer to buy nor shall there be sale of the securities in any jurisdiction in which such offer, solicitation or sale would be unlawful, including 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 "1933 Act") or any applicable securities laws of any state of the United States and may not be offered or sold in the United States, or to, or for the account or benefit of a U.S. person (as defined in Regulation S 2 under the 1933 Act) unless registered or pursuant to an available exemption from such registration requirements.

About Red Mountain

The 17,125 hectare Red Mountain Gold Project is located in northwestern BC, 15 km northeast of the Town of Stewart.IDM recently announced the results of a Feasibility Study for a high-grade, underground gold mine, which includes primarily bulk underground mining methods and the production of gold dor?(C) on site.The Project is advancing through the provincial and federal environmental assessment processes, with comprehensive, thorough, and ongoing consultation with Nisga'a Nation.The Company recently submitted its Project Application and Environmental Impact Statement to regulators and stakeholders.

Additional information, including the Company's NI 43-101 Technical Reports for the Red Mountain gold project, is available at www.idmmining.com and at www.sedar.com.

ABOUT IDM MINING LTD.

IDM Mining Ltd. is a mineral exploration and development company based in Vancouver, BC, Canada.The Company's current exploration and development activities are focused on precious metals in British Columbia, with a primary focus on the high-grade underground Red Mountain gold project which has entered the BC and Canadian environmental assessment process.

ON BEHALF OF THE BOARD
of IDM Mining Ltd.

"Robert McLeod"

President, CEO and Director

For more information, contact:

Robert McLeod
604-681-5672 direct
604-617-0616 cell
rm@idmmining.com

Investor Relations:
Shobana Thaya
st@idmmining.com
416-807-1009

Alex Horsley
ah@idmmining.com
604-773-7269

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

Forward-Looking Statements: Some statements in this news release contain forward-looking information or forward-looking statements for the purposes of applicable securities laws.These statements include, among others, statements with respect to the offering and the use of proceeds from the offering, proposed exploration and development activities and their timing, and other plans and objectives of IDM.These statements address future events and conditions and, as such, involve known and unknown risks, uncertainties and other factors, which may cause the actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the statements.Such factors include, among others and in addition to those described elsewhere in this release, receipt of regulatory approvals of the offering, inability to complete the financing on the proposed terms or at all, delays in obtaining or inability to obtain required government or other regulatory approvals, permits or financing, the risk of unexpected variations in mineral resources, grade or recovery rates, of failure of plant, equipment or processes to operate as anticipated, of accidents, labor disputes, and unanticipated delays in completing other development activities, the risk that estimated costs will be higher than anticipated and the risk that the proposed mine plan and recoveries will not be achieved, equipment breakdowns and bad weather, the timing and success of future exploration and development activities, exploration and development risks, mineral resources are not as estimated, title matters, third party consents, operating hazards, metal prices, political and economic factors, competitive factors and general economic conditions.In making the forward-looking statements, the Company has applied several material assumptions including, but not limited to, the assumptions that: the offering will proceed and be completed as planned; required regulatory approvals will be obtained; the proposed exploration and development will proceed as planned; with respect to mineral resource estimates, the key assumptions and parameters on which such estimates are based; that the proposed mine plan and recoveries will be achieved, that capital costs and sustaining costs will be as estimated, and that no unforeseen accident, fire, ground instability, flooding, labor disruption, equipment failure, metallurgical, environmental or other events that could delay or increase the cost of development will occur, and market fundamentals will result in sustained metals and minerals prices.The Company expressly disclaims any intention or obligation to update or revise any forward-looking statements whether as a result of new information, future events or otherwise except as otherwise required by applicable securities legislation.