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TCO.V ·

Transatlantic Mining Corp. NI -43-101 and Preliminary Economic Assessment Review

Economic Studies

Transatlantic Mining Corp. | Suite 800 | 1199 West Hastings Street | Vancouver | Canada V6E 3T5

T 604-424 8257 | F 604-357 1139| www.transatlanticminingcorp.com

Transatlantic Mining Corp. NI -43-101 and Preliminary Economic Assessment Review

TCO NEWS RELEASE-VANCOUVER, B.C., April 20th, 2017 – Transatlantic Mining Corp. (the “Company”) (TCO:TSX.V)

As a result of a review by the British Columbia Securities Commission, we are issuing the following new s release to clarify our

disclosure. The review and disclosure is based on the NI 43 -101 and PEA report titled “The Mineral Resource and Preliminary

Economic Assessment at the US Grant Mine Property, Virginia City, Madison County, Montana, USA dated 9 December 2016.

The current technical report as stated is not compliant with the requirements of NI 43-101 and that investors should not rely on the

results of the preliminary economic assessment until a compliant report is filed. The Company and the Qualified Person are currently

addressing the disclosure concerns with respect to Historical Estimates, Exploration Targets, Project Infrastructure Economic

Analyses and Recommendations with an updated response and report to be issued shortly.

About Transatlantic Mining Corp.

Transatlantic Mining (TSX-V: TCO) is an emerging precious and base metal explorer, developer and producer. The Company has

a focus on high-grade mining, in stable mining jurisdictions. The Company is engaged in controlling and owning mineral properties

interests, such as an 80% earn-in option on the Monitor Copper-Gold project in Idaho (USA).

In January 2016, the Company entered a lease/purchase option agreement on 100% of the US Grant Gold -Silver Mine &

Mill complex in Montana (USA) which has developed a concentrate within 12 months . A proven management team, led by Chief

Executive Officer Bernie Sostak seek to enhance shareholder value through expert exploration/development and expansion of its

existing assets, together with selective and future earning accretive acquisitions.

For further information please contact: Bernie Sostak +61 (0) 439 904 044

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of

the TSX Venture Exchange) accepts responsibility for the adequ acy or accuracy of this release