Mr. Bernie Sostak reports

TRANSATLANTIC MINING CORP. CONCENTRATE CONTINUES AND 150 TPD MILL RUNS AT ALDER GULCH-US GRANT MINE & MILL COMPLEX, MONTANA (USA)

Transatlantic Mining Corp. has developed a third batch of concentrate from its advanced property, the Alder Gulch property/U.S. Grant mine and mill complex, located in the Virginia City mining district of Madison county, Montana (United States). This report includes updates to the provisional results for the second and third batches of concentrate going to a third party smelter. Increasing grades are now being encountered in the U.S. Grant mine between the 3 level and 4 level and upgrades to the 150-ton-per-day process plant capacity are near complete. Of note are the following:

• The provisional assays for the third batch of concentrate are 8.5 dry tonnes at 3.9 ounces per ton gold and 157.4 ounces per ton silver.
• This represents both a 22-per-cent increase on the gold content and the silver content.
• Development below 3 level confirmed grades to 13 grams per tonne Au and 522 g/t Ag (19.9 g/t gold equivalent).

Processing

Whilst a production decision is still to be made, the concentrate developed from the trial mining and processing through the installed and commissioned 150-ton-per-day capacity Alder Gulch mill has commenced for further evaluation.

The mill now has the capacity to increase concentrate yield at a steady rate of over one tonne per day. This represents a significant increase from the 0.6 to 0.8 ton per day achieved prior to the upgrade when the mill throughput was less than 40 tons per day (see news release dated March 1, 2017) on this trial mining phase.

SECOND BATCH -- CONCENTRATE PROVISIONAL RESULTS
  
Dry tonnes      oz/ton    Contained troy ounces

16.5            3.2 Au                  50.0 Au          
16.5          129.1 Ag               2,025.6 Ag 

Mine development below the existing 3 level continues in sulphide mineralization. This material has commenced to develop a new and third batch of concentrate with provisional assays tabulated in the table. There is additional concentrate in storage pending the return of those provisional assay results. There is also a surface stockpile of additional material awaiting treatment. The provisional results in the table show an increase of 22 per cent in both the gold and silver grades (versus the second batch).

NEW THIRD BATCH -- CONCENTRATE PROVISIONAL RESULTS
  
Dry tonnes         oz/ton    Contained troy ounces

8.5                3.9 Au                  12.3 Au          
8.5              157.4 Ag                 492.9 Ag

The last two tonnes developed from batch 3 were assayed at grades of 4.9 ounces per ton Au and 204 ounces per ton Ag, respectively. In addition, to the 8.5 tonnes in the third batch, there are three new tonnes of concentrate awaiting assay to be composited to batch 3 on receipt.

The surface stockpile of mineralized material at U.S. Grant has now increased from the trial processing through the 150-ton-per-day milling facility. Further mineralized material is expected to be delivered from the development below the 3 level to evaluate mining technique, processing and recovery opportunities.

The final revenue will be subject to the final smelter receipts and costs.

Mine development grades below 3 level

The trial mine development continues below the 3 level with vein grades up to 13 g/t Au and 522 g/t Ag for a 19.9 g/t AuEq over an average 0.7 m true width and over 10 metres in strike length

   INDIVIDUAL SAMPLES OF U.S. GRANT VEIN QUARTZ ON THE 4 LEVEL
  
Sample           Width (m)    Au (g/t)     Ag (g/t)    AuEq (g/t)

1109                  0.8        13.0        522.5          19.9
1109-1                0.8         3.5        662.7          12.2
1109-2                0.8         3.4        881.1          15.0
1110                  0.6         7.6        545.5          14.8
1111                  0.6        12.1        539.6          19.2
Five samples          0.7         7.9        630.3          16.2
         
The gold equivalent grade used is $1,200 (U.S.)/ounce Au and 
$15.80 (U.S.)/ounce Ag.

This confirms that mineralization continues below hole DDH_1125-13 (see news release dated Jan. 19) with strong sulphide mineralization which can be observed to continue into the floor of the 4 level exploratory mine development.

Chief executive officer Bernie Sostak commented:

"Whilst we are in a trial mining phase, with continued staged upgrades to the mine and mill, the results support towards a future production decision and mine life with cash flow. The company continues to derisk the current deposit with increasing knowledge. This in addition to exploration upside also supports towards a stronger business and investment case going forward at a new gold and silver mine."

Chris Pfahl is the qualified person responsible for having reviewed and approved the technical information contained in this news release. Mr. Pfahl is the principal and owner of Silver Valley Engineering.

About Transatlantic Mining Corp.

Transatlantic Mining 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 (United States). 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 (U.S.) which has now produced a concentrate within 12 months.