Pretium Resources Inc.: Regional Exploration Update

VANCOUVER, British Columbia, Dec. 05, 2017  — Pretium Resources Inc. (TSX:PVG) (NYSE:PVG) (“Pretivm” or the “Company”) is pleased to provide an update on its regional grass-roots exploration program on the Bowser Claim Group east of the Brucejack Mine. An extensive regional exploration campaign was initiated in 2015 to identify mineralized zones on the 1,250-square-kilometer, wholly-owned property similar to the Valley of the Kings and Eskay Creek deposits. A final data analysis is underway to refine high-priority targets for drilling in Spring 2018.

The comprehensive regional exploration program has included the collection of over 11,000 samples, regional mapping, prospecting, airborne geophysics, ground geophysics, hyperspectral mapping, and data compilation.  To date, the program has resulted in the identification of three distinct areas that have the potential to host epithermal mineralization.

Several gold and silver epithermal targets have been identified in the American Creek Zone located approximately 25 kilometers southeast of the Brucejack Mine. The American Creek valley is dominated by kilometer-scale north-south structures and localized east-west stockworks, which host elevated gold values of up to 62.5 grams of gold per tonne in rocks of the Lower Hazelton Group, Unuk River Formation, the same formation that hosts the Brucejack Mine. Geophysical conductors identified in the American Creek Zone are supported by coincident pathfinder minerals and trace elements associated with epithermal mineralization.

The Koopa Zone, located approximately 30 kilometers east-southeast of the Brucejack Mine, is dominated by intensely quartz-sericite pyrite altered Salmon River Formation volcanics and Quock Formation sediments of the Upper Hazelton Group. As no previous work had been completed at this zone, 2017 efforts focused on prospecting and mapping, with ground geophysical surveys undertaken to assist with interpretations at depth and in areas with limited exposure. Prospective precious and base metal grab samples have been collected across the zone returning results as high as 5.28 grams of gold per tonne, 1,460 grams of silver per tonne, 9% lead and 25% zinc with geochemical signatures similar to intrusion-related epithermal gold deposits.

Approximately 15 kilometers east of the Brucejack Mine, numerous high-grade gold boulders have been sampled at the Boulder Zone, with grades as high as 19.25 grams of gold per tonne. Ground geophysics have been conducted over the area to find the source of the boulders. Alteration, geochemistry and Upper Hazelton Group rocks in the area do indicate the boulders are potentially VMS related.

As results continue to be received, review and analysis of the extensive regional database continues with the expectation that additional high- priority areas will be identified.

Kenneth C. McNaughton, M.A.Sc., P.Eng., Chief Exploration Officer, Pretium Resources Inc. is the Qualified Person (QP) responsible for the 2017 regional grassroots exploration program.

About Pretivm

Pretivm is ramping-up gold production at the high-grade underground Brucejack Mine in northern British Columbia.

For further information contact:

Joseph Ovsenek
President & CEO

Troy Shultz
Manager, Investor Relations &
Corporate Communications

Pretium Resources Inc.
Suite 2300, Four Bentall Centre, 1055 Dunsmuir Street
PO Box 49334 Vancouver, BC V7X 1L4
(604) 558-1784
invest@pretivm.com

NT4