Additional Mineral Resources Expected From The Marigold Mine Exploration

VANCOUVER, BC - SSR Mining Inc. reported that the Marigold mine exploration plan for 2020 is focusing on the discovery of additional Mineral Resources south of the currently producing Mackay Pit, including Trenton Canyon, Valmy, East Basalt and Crossfire. A limited amount of reverse circulation (RC) drilling for additional Mineral Reserves at Mackay Pit and extensions at Red Dot is underway.

With the acquisition in 2019 of adjacent claims south and west of the mining activities, such as Trenton Canyon, the Company nearly doubled land position. The additional mineral claims provide latitude to systematically explore for extensions to existing near-surface oxide deposits similar to those mined at Marigold, and for higher-grade sulphide deposits associated with deep fault structures, intrusive rocks and favorable Comus Formation sedimentary rocks similar to those hosting the deposits at the near-by Turquoise Ridge Mine. The exploration plan for high-grade, sulphide gold mineralization in 2020 includes 4,300 meters of core drilling supported by seismic and gravity geophysical surveys.

A total of 70,304 meters in 210 RC and core drillholes were completed during the Exploration Period. Results at Trenton Canyon were successful on two objectives: i) confirmed the position and grade of historic gold-mineralized intercepts; and ii) discovered a new tabular zone of potentially continuous sulphide mineralization requiring further investigation. Drill results at Valmy and Trenton Canyon successfully extended gold mineralization for potential additions to Mineral Resources estimates from December 31, 2019.

At Trenton Canyon exploration drilling includes a sulphide intercept of 5.19 g/t gold over 94.5 meters including 44.68 g/t gold over 7.6 meters and 6.68 g/t gold over 6.1 meters from drillhole MRA7178. The drillhole ended in gold mineralization. The mineralized interval in MRA7178 shows continuity to the next section south located 30 meters away where three drillholes all returned positive results including 1.98 g/t gold over 82.3 meters, 1.57 g/t gold over 77.7 meters and 0.97 g/t gold over 99.1 meters in drillholes MRA7176, MRA7097, and MRA7148 respectively. The mineralized zone measures 150 meters on dip with an orthogonal thickness of 50 to 70 meters with the potential to expand as gold mineralization is open down dip to the east, and to the north of MRA7178, and to the south. These results demonstrate width and grade conditions similar to operating underground gold operations elsewhere in Nevada. As a result of ongoing positive exploration results, the Company will continue to test and expand this new zone of gold mineralization.

At Trenton Canyon confirmation drilling at Relay Ridge includes 3.13 g/t gold over 108.2 meters starting at 27.4 meters from surface including 12.73 g/t gold over 21.3 meters from drillhole MR7084. In addition, the Company encountered 1.94 g/t gold over 50.3 meters from exploration drillhole MRA7141 with the new zone starting at surface. Both drillholes returned zones of oxide gold mineralization similar to that mined at Marigold. Drillhole MRA7092 intercepted 7.27 g/t gold over 30.5 meters starting at 274.3 meters in transitional material, which is new, high-grade gold sulphide mineralization associated with a fault structure related to the West Pit fault.

Results from Valmy in the first quarter of 2020 included 0.92 g/t gold over 39.6 meters in drillhole MR7128 and 0.66 g/t gold over 50.3 meters from MR7129. These results are expected to further expand Mineral Resources at Valmy when reported at year-end 2020.

During the third and fourth quarter of 2019, SSR Mining completed detailed field mapping and sampling of the Trenton Canyon area covering approximately 570 hectares surrounding the historic pits and exploration areas. Identified was the fault and stratigraphic controls to gold mineralization exploited in historic pits and have recognized several new-near surface targets. This work supports the development of targeting concepts as the Company explores for high-grade sulphide deposits at Trenton Canyon and Marigold.

During the Exploration Period, one core hole was completed at Trenton Canyon which encountered Lower Plate Comus Formation lithologies at 300 meters from surface. This is significant as the favorable Comus Formation sedimentary rocks can be more efficiently explored for high-grade, sulphide deposits at relatively shallow depths. The Comus Formation is the sulphide ore-hosting rock unit encountered at the high-grade Turquoise Ridge Mine.

Looking ahead, approvals have been received to build roads and construct drill sites along the identified mineralized corridors at Trenton Canyon. Moving the RC drill rigs to exploration areas in the second quarter of 2020 is anticipated. Core drilling is planned to follow up on sulphide mineralization intercepted in MRA7178 and MRA7092 and targets anticipated from the upcoming seismic geophysical studies. Timing to initiate this exploration activity may be impacted COVID-19 state restrictions.