Platinum Group Metals Provides Update on Waterberg Definitive Feasibility Work

VANCOUVER, BRITISH COLUMBIA and JOHANNESBURG, SOUTH AFRICA--(Marketwired - June 15, 2017) - Platinum Group Metals Ltd. (TSX:PTM)(NYSE MKT:PLG) ("Platinum Group" or the "Company") reports that planned Definitive Feasibility Study ("DFS") engineering work on the Waterberg Project is underway, including infill drilling, resource modelling, mine plan optimization and infrastructure engineering. Engineering and design work to reduce and improve underground development and optimize the project scale and return will be part of the DFS.

The Waterberg Project represents one of the few significant undeveloped primary palladium assets globally. The palladium market has been in a fundamental deficit for a number of years and based on strong auto demand, limited mine supply and shrinking stockpiles this deficit is expected to continue.

Detailed drilling targeting the higher grade, thicker portions of the deposit is in progress. The objective of the drilling is to move portions of the deposit into the measured resource category and to investigate the best grade portions for inclusion in early mine planning. License and permitting application work is also underway. Work at Waterberg is wholly funded at present by 28.35% JV partner JOGMEC (the Japan Oil, Gas and Metals National Corporation) through an exploration earn-in commitment.

Details

During May 2017 infill drilling re-commenced at Waterberg with the objective of increasing the confidence level of defined areas of T and F Reef from the inferred to the indicated or measured level of confidence. A total of eight machines have been deployed and approximately 11,230 meters have been drilled in this program to date. Assays for the current drilling program are in process. Several holes drilled in late 2016 have recently returned assays. Highlights include the following intercepts:

• North Super F Zone Borehole WE097D3 returning 45.1 meters of 4.64 g/t 3PGE, including 16.6 meters of 7.28 g/t 3PGE;
• North Super F Zone Borehole WE096D0 returning 25.81 meters of 3.62 g/t 3PGE, including 6.15 meters of 4.89 3PGE; and
• T Zone Borehole WB211D2 returning 6.55 meters of 5.81 g/t 3PGE.

The true width of the shallow dipping (30° to 35°) mineralized zones that were sampled are approximately 82% to 87% of the reported interval from the vertical intercept. For the efficient application of bulk mining methods and for mine planning, vertical intercepts of 3 meters or more are desirable. Increased grade thickness zones associated with minor footwall troughs or bays along the 13 km long layered complex have recently been identified. Infill drilling is confirming and adding definition to these zones, which will allow them to be prioritized in an updated mine plan for the DFS.

As a result of its shallow depth, good grade and a fully mechanized mining approach, the Waterberg Project has the opportunity to be a safe mine within the lowest quartile of the Southern Africa PGE industry cost curve. The project resources consist of 60% palladium (refer to "Independent Technical Report on the Waterberg Project Including Mineral Resource Update and Pre-Feasibility Study - Project Areas located on the Northern Limb of the Bushveld Igneous Complex, South Africa" dated effective October 17, 2016 and filed on October 19, 2016 at www.sedar.com).

A table of results for the 2016 boreholes recently assayed, including the highlight holes referred to above, follows:

In the table above "NSF" refers to North Super F Zone, "NSF_IN" refers to a higher-grade North Super Zone intercept within a borehole reported above and "TZ" refers to T Zone. All of the above holes were drilled vertical or near vertical.

Base metals and other major elements were determined by multi acid digestion with Inductively Coupled Plasma ("ICP") finish and PGEs were determined by conventional fire assay and ICP finish. Setpoint Laboratories is an experienced ISO 17025 SANAS accredited laboratory in assaying and have utilized a standard quality control system including the use of standards. Platinum Group utilized a well-documented system of inserting blanks and standards into the assay stream and has a strict chain of custody and independent lab re-check system for quality control.

Important detailed infrastructure planning has commenced for the Waterberg Project, including power line environmental and servitude work by Eskom and detailed hydrogeological work to source ground water. Eskom has progressed electrical power connection planning for a 65 km, 140MW line to the project.

Hydrological work so far has also identified several large-scale water basins that are likely able to provide potable and mine process water for the Waterberg Project and local communities. The Waterberg Project team is examining the possibility of assisting with regional infrastructure to source potable water for municipal use while also sourcing and providing mine process water. Meetings with local municipalities have been positive and co-operative in tone and are encouraging for future development.

Outlook

Waterberg continues to advance with infill drilling and engineering work. Further results are expected in the weeks ahead. Preparations are in progress for the filing of a mining right. JOGMEC continues to fund 100% of the current costs at Waterberg.

General Corporate Update

As reported in a news release dated June 9, 2017, the technical team at the Company's Maseve Mine is focussed on improving performance during production ramp up, which is behind schedule.

To accommodate the Company for delayed production ramp-up at the Maseve Mine, a syndicate of lenders led by Sprott Resource Lending Partnership (collectively, "Sprott") and Liberty Metals & Mining Holdings, LLC ("LMM") have agreed to amend their existing loan facilities to the Company and provide waivers, in each case, until October 31, 2017, with regard to minimum cash and working capital requirements, achievement of production targets, certain events of default and the requirement to pay the lenders 50% of the proceeds of equity and debt financings. Sprott and LMM are each to be paid a fee of US $200,000 and US $400,000 respectively in consideration of the above amendments, both at the same time upon the maturity or repayment of the Sprott facility. The Liberty facility is in second secured position and is scheduled for repayment subsequent to the Sprott facility. The Company highlights that additional working capital will be required to continue its operations. Financing methods in consideration by the Company include but are not limited to sale of assets, debt or equity. While the Company believes that further funding will be achieved, there is no assurance that such will be concluded on terms acceptable to the Company, or at all.

The Company continues to work with BMO Capital Markets and Macquarie Capital to review and assess corporate and asset level strategic alternatives as well as potential further financing opportunities.

About Platinum Group Metals Ltd.

Platinum Group, based in Johannesburg, South Africa and Vancouver, Canada, has a successful track record with more than 20 years of experience in exploration, mine discovery, mine construction and mine operations.

Formed in 2002, Platinum Group holds significant mineral rights and large-scale reserves of platinum and palladium in the Bushveld Igneous Complex of South Africa, which is host to over 70% of the world's primary platinum production. The Company is currently focused on ramping up the Maseve Mine, its first near-surface platinum mine, to commercial production.

Platinum Group has delineated new low cost, near surface reserves on the North Limb of the Bushveld Complex on the Waterberg Project. Waterberg represents a new bulk type of large scale, shallow low-cost platinum, palladium and gold deposit. Waterberg is one of the only large scale dominantly palladium deposits in the world.

Qualified Person

R. Michael Jones, P.Eng., the Company's President, Chief Executive Officer and a significant shareholder of the Company, is a non-independent qualified person as defined in National Instrument 43-101 Standards of Disclosure for Mineral Projects ("NI 43-101") and is responsible for preparing the technical information contained in this news release. He has verified the data by reviewing the detailed information of the geological and engineering staff and the Independent Qualified Person reports as well as visiting the site regularly.