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IDM Mining Announces Upgrade to OTCQB(R) Venture Marketplace and Ticker Symbol Change to IDMMF

VANCOUVER, BRITISH COLUMBIA--(Marketwired - Apr 10, 2017) - IDM Mining Ltd. (TSX VENTURE:IDM)(OTCQB:IDMMF) ("IDM" or the "Company") is pleased to announce that it has been approved to upgrade its common stock from the Pink® Open Market to the OTCQB® Venture Market under the new trading symbol "IDMMF", effective April 11, 2017. The previous symbol was RVRCF.

There is no action required by current shareholders as a result of this change.

CEO and President Robert McLeod commented, "IDM has a substantial U.S. shareholder base, and we believe that upgrading to and trading on the OTCQB will enhance liquidity, broaden our shareholder base while increasing the visibility of our Company."

The OTCQB Venture Market, operated by the OTC Markets Group Inc., offers transparent trading in entrepreneurial and development stage companies that have met a minimum bid price test, are current in their financial reporting and have undergone an annual verification and management certification process. These standards provide a strong baseline of transparency, as well as the technology and regulation to improve the information and trading experience for investors.

U.S. Investors can find current financial disclosure and Real-Time Level 2 quotes for IDM Mining Ltd at http://www.otcmarkets.com/stock/IDMMF/quote.

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 is progressing through the BC and Canadian environmental assessment process. Further information can be found on the Company's website at www.IDMmining.com.

ON BEHALF OF THE BOARD of IDM Mining Ltd.

Robert McLeod, President, CEO and Director

"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. All statements in this release, other than historical facts, that address events or developments that the Company expects to occur, are forward-looking statements. Forward-looking statements are statements that are not historical facts and generally, but not always, identified by the words "expect", "plans", "anticipates", "believes", "intends", "estimates", "projects", "potential" and similar expression, or that events or conditions "will", "would", "may", "could", or "should" occur. Although the Company believes the expectations expressed in such forward-looking statements are based on reasonable assumptions, such statements are not guarantees of future performance and actual results may differ materially from those projected in the forward-looking statements. Forward-looking statements are based on the beliefs, estimates and opinions of the Company's management on the date the statements are made. Except as required by applicable securities laws, the Company undertakes no obligation to update these forward-looking statements in the event that management's beliefs, estimates or opinions, or other factors, should change.