Mr. Bernie Sostak reports

TRANSATLANTIC MINING CORP. NI 43-101 GEOLOGY AND MINERALISATION REPORT ON THE US GRANT MINE

As a result of a review by the British Columbia Securities Commission, Transatlantic Mining Corp. is issuing the following news release to clarify disclosure for the U.S. Grant mine within the Alder Mountain project.

In December of 2016, the company filed a technical report on SEDAR for its U.S. Grant mine property entitled "The mineral resource and preliminary economic assessment at the U.S. Grant mine property, Virginia City, Madison county, Montana, United States." The original report was selected for review by the British Columbia Securities Commission. As a result of that review, the company, in a news release dated April 20, 2017, advised investors that the original report should not be relied upon until a compliant report was filed. The company commissioned a new report filed on SEDAR on Aug. 4, 2017, entitled "The geology and mineralization of the U.S. Grant mine property, Virginia City, Madison county, Montana, United States." The new report does not contain a current mineral resource estimate, and therefore no economic analysis, for the U.S. Grant mine property. The new report also updates the drilling data contained in the original report to include the results of additional drilling and assays around historical hole USG 88-2, obtained in the intervening period.

The new report also provides an historical resource estimate for the U.S. Grant mine as reported in 1990 (McLeod, 1990), as shown in the attached table.

Tonnes           Au grade          Ag grade             Category          Information source
                  (oz/ton)          (oz/ton)

23,000               0.53              16.5               Proven                McLeod, 1990
200,000              0.53              16.5             Probable                McLeod, 1990
158,400               0.3                 5             Possible                McLeod, 1990

The company's qualified person (QP) has not done sufficient work to classify the historical estimate as current mineral resource or mineral reserve. Based on a review of all the historical data, the QP concurs that the methods used to estimate the historical resource met industry standards at that time and are reliable. The resource categories included in the 1990 estimate (proven, probable and possible) are similar to the National Instrument 43-101 resource categories (measured, indicated and inferred). There has been little mining completed since the latest historical estimate, and the estimates are supported by recent Transatlantic Mining exploration drilling data and recent Transatlantic Mining exploratory mine drifting data. The QP therefore believes that the 1990 historical resource estimate is a reliable estimate and still relevant. The QP recommends that the historical resource estimate be upgraded to an NI 43-101-compliant mineral resource estimate using the applicable historical data, recent Transatlantic Mining exploration drilling data and recent Transatlantic Mining exploratory mine drifting data.

The U.S. Grant mine property has had only a limited amount of exploration drilling during its history. An exploration target in the range of 1.7 million to 2.6 million tons, with grade range of 0.19 to 0.28 ounce per ton equivalent gold (approximate range of 350,000 to 750,000 equivalent gold ounces based on gold and silver at $1,200 (U.S.) and $15.80 (U.S.), respectively) is estimated based on vein data, average widths, downdip projections, U.S. Grant literature and regional vein grades. Note: The potential quantity and grade above are conceptual in nature, as there has been insufficient exploration to date to define a mineral resource, and it is uncertain whether further exploration will result in the target being delineated as a mineral resource.

The assays obtained from the recent drill program around the historical hole 88-2 are as shown in the attached table.

Hole No.           From        To    True width         Au        Ag      AuEq      Au      Ag    AuEq 
                    (ft)      (ft)          (ft)   (oz/ton)  (oz/ton)  (oz/ton)   (g/t)   (g/t)   (g/t)
                                        
SURDH No. 1         159     167.7           5.9      0.286       5.3     0.357     9.8   181.5   12.24
Includes                                    4.4                                                   14.2
SURDH No. 3         122       128           3.5      0.093       1.8     0.116    3.19    60.0    3.99
SURDH No. 4         198       205           6.7      0.083       3.1     0.124    2.86   105.0    4.24
SURDH No. 5         201     207.6           6.4      0.172       2.3     0.203     5.9    78.9    7.33
Includes                                    2.1                                                   16.9
SURDH No. 6       177.4     186.7           8.9      0.522       3.1     0.564   17.91   106.4   19.35
Includes                                    2.8                                                   36.8
SURDH No. 8       191.5       195           3.3      0.195       3.1     0.237    6.68   107.3    8.09
SURDH No. 9       178.5     187.5           6.8      0.068       2.2     0.097    2.33    76.0    3.33
SURDH No. 10        268     276.5           6.1      0.133       1.4     0.152    4.55    48.7    5.19
Includes                                    2.0                                                   10.2
SURDH No. 12        690       691           1.0      0.368     13.90     0.551   12.62   476.6   18.89
SURDH No. 13        215       221           4.3      0.100      2.35     0.131    3.43   80.57    4.49
SURDH No. 14      159.7     166.5           6.7      0.152      3.88     0.203    5.21  132.92    6.96
Includes                                    1.5                                                   21.1

The new report was authored by Chris Pfahl, PE, PLS, who is a qualified person under NI 43-101 and has reviewed and approved the disclosure of a scientific or technical nature herein.

About Transatlantic Mining Corp.

Transatlantic Mining is an emerging precious and base metal explorer, developer and producer. The company is engaged in controlling and owning mineral properties interests, such as an 80-per-cent earn-in option on the Monitor copper-gold project in Idaho.

In January, 2016, the company entered a lease/purchase option agreement on 100 per cent of the U.S. Grant gold-silver mine and mill complex in Montana, which has developed a concentrate within 12 months. The company also holds an exclusive lease with option to purchase on the Kearsage claim group comprising approximately 700 acres, located approximately four miles from the U.S. Grant mine.