Saturday, September 26, 2026
MiningNewsTerminal
Saturday, September 26, 2026 Admin

PTM.TO ·

Waterberg Joint Venture Establishes A Pre-Construction Readiness Program for Waterberg PGM Project Infill Drilling Program and Definitive Feasibility Study Update Planned

Mine Development & Operations Mergers & Acquisitions Exploration Programs Partnerships & JV

838 – 1100 Melville Street

Vancouver, BC V6E 4A6

P: 604-899-5450

F: 604-484-4710

News Release No. 22-458

October 20, 2022

Waterberg Joint Venture Establishes A Pre-Construction

Readiness Program for Waterberg PGM Project

Infill Drilling Program and Definitive Feasibility Study Update Planned

(Vancouver/Johannesburg) Platinum Group Metals Ltd. (PTM:TSX; PLG:NYSE American)

(“Platinum Group”, “PTM” or the “Company”) reports that Waterberg JV Resources (Pty)

Ltd. (“Waterberg JV Co.”) has approved in principle a Rand 380 million (approx. US $21.0

million) pre-construction work program (the “Work Program”) for the Waterberg Project,

focused on early infrastructure, de-risking and project optimization.

An initial budget for the first R 45 million (approx. US $2.5 million) of the Work Program (the

“Initial Budget”), to be spent by March 31, 2023, has been unanimously approved by the

board of directors of Waterberg JV Co., which is owned by the Company, Japan Oil, Gas and

Metals National Corporation (“ JOGMEC”), Hanwa Co. Ltd. (“ Hanwa”), Impala Platinum

Holdings Ltd. (“Implats”), and Mnombo Wethu Consultants (Pty) Ltd. (“Mnombo”).

“The Waterberg JV co-owners are pleased to collaborate on and fund this important and

substantial Work Program, which will advance the Waterberg Project,” said Platinum Group

President and CEO Frank Hallam. “Waterberg JV Co. has laid out an early infrastructure plan

intended to significantly de -risk the future construction of the project. While the Work

Program is being executed, we plan to continue seeking a third -party concentrate offtake

agreement for Waterberg JV Co. and, as a possible alternative, PTM plans to assess the

potential establishment of a new smelter and base metal refinery business, jointly with third

party investors, capable of processing Waterberg concentrate.”

The Work Program will focus on project infrastructure inclu ding initial road access, water

supply, essential site facilities, a first phase accommodation lodge, a site construction power

supply from state utility Eskom and advancement of the Waterberg Social & Labour Plan. An

update to the 2019 Waterberg Definitive Feasibility Study (“DFS Update”) is also planned,

including a review of cut-off grades, mining methods, infrastructure plans, scheduling,

concentrate offtake, dry stack tailings, costing and other potential revisions to the project’s

financial model.

As a precursor to the DFS Update, an infill drilling program has been approved targeting near

surface, modelled Inferred Mineral Resource blocks that have good potential for conversion

to higher confidence levels, thereby allowing them to be added to early mine plans, potentially

reducing early capital expenditure and the period to first mining . The infill drill program,

budgeted at R 23.0 million (approx. US $1.25 million), is scheduled to commence shortly and

is planned to consist of 16 T Zone NQ boreholes and 1 6 F Zone NQ boreholes. Mineralized

PLATINUM GROUP METALS LTD. …2

material recovered from the drill program will be assayed and the remaining material will be

processed to determine dry-stack tailings characteristics and provide additional concentrate

metallurgical data. If dry stack tailings methods are implemented in the DFS Update, it is

expected that mine water consumption will be reduced by 40% to 50%.

The Initial Budget for the Work Program will be funded pro rata by the joint venture partners

and was coordinated to match fiscal year and budgetary periods for JOGMEC and Hanwa.

Subsequent expenditures in accordance with the Work Program are subject to expected

approvals for sequential time periods ending on August 31, 2024.

Today's announcement is another key step on the journey to leveraging the potential of the

Waterberg deposit and its prospective positive economic, social, and community impacts. A

future construction decision for the Waterberg Project would benefit local stakeholders by

offering skilled job opportunities, improved roads, better access to water services, as well as

training and education opportunities.

Qualified Person

Qualified Person Rob van Egmond, P.Geo., a consultant geologist to the Company and a

former employee, is an independent qualified person as defined in National Instrument 43 -

101 Standards of Disclosure for Mineral Projects (“NI 43-101”). Mr. van Egmond has

reviewed, validated and approved the scientific and technical information contained in this

news release and has previously visited the Waterberg Project site.

About Platinum Group Metals Ltd. and the Waterberg Project

The Waterberg Project, discovered in 2011, is a bulk underground platinum and palladium

deposit located in South Africa. Platinum Group Metals Ltd. is the operator of the Waterberg

Project, which is owned indirectly by Platinum Group (37.05%), Mnombo Wethu Consultants

(Pty) Ltd. (“Mnombo”) (26.0%), Impala Platinum Holdings Ltd. (15%), JOGMEC (12.195%),

and Hanwa (9.755%) through Waterberg JV Co. As a result of its equity interest in Mnombo,

the Company has an aggregate 50.02% indirect interest in the Waterberg Project.

On behalf of the Board of

Platinum Group Metals Ltd.

Frank R. Hallam

President, CEO and Director

For further information contact:

Kris Begic, VP, Corporate Development

Platinum Group Metals Ltd., Vancouver

Tel: (604) 899-5450 / Toll Free: (866) 899-5450

www.platinumgroupmetals.net

Disclosure

The TSX and the NYSE American have not reviewed and do not accept responsibility for the accuracy

or adequacy of this news release, which has been prepared by management.

PLATINUM GROUP METALS LTD. …3

This press release contains forward-looking information within the meaning of Canadian securities laws

and forward -looking statements within the meaning of U.S. securities laws (collectively “forward -

looking statements”). Forward -looking statements are typ ically identified by words such as: believe,

expect, anticipate, intend, estimate, plans, postulate and similar expressions, or are those, which, by

their nature, refer to future events. All statements that are not statements of historical fact are forward-

looking statements. Forward -looking statements in this press release include but are not limited to

statements regarding further approvals, completion and potential results of the Work Program and DFS

Update, a potential construction decision for the Wate rberg Project, a potential offtake agreement or

new smelter and base metal refinery, and the potential economic, social and community impacts of the

Waterberg Project . Although the Company believes any forward -looking statements in this press

release are r easonable, it can give no assurance that the expectations and assumptions in such

statements will prove to be correct.

The Company cautions investors that any forward -looking statements by the Company are not

guarantees of future results or performance and that actual results may differ materially from those in

forward-looking statements as a result of various factors, including that the portions of the Work

Program subject to the Initial Budget are subject to further approval by the Waterberg JV Co. owners;

the timely completion of additional required financings and potential terms thereof; possible adverse

impacts due the global outbreak of COVID -19; rising global inflation and increased potential supply

chain disruptions, international conflict and othe r geopolitical tensions and events; the Company's

history of losses and negative cash flow; the Company's properties may not be brought into a state of

commercial production; uncertainty of estimated production, development plans and cost estimates for

the Waterberg Project; discrepancies between actual and estimated mineral reserves and mineral

resources, between actual and estimated development and operating costs, between actual and

estimated metallurgical recoveries and between estimated and actual prod uction; fluctuations in the

relative values of the U.S. Dollar, the Rand and the Canadian Dollar; volatility in metals prices; the

uncertainty of alternative funding sources for Waterberg JV Co.; the Company may become subject to

the U.S. Investment Company Act; the failure of the Company or the other shareholders to fund their

pro rata share of funding obligations for the Waterberg Project; any disputes or disagreements with

the other shareholders of Waterberg JV Co. or Mnombo; the ability of the Company t o retain its key

management employees and skilled and experienced personnel; conflicts of interest; litigation or other

administrative proceedings brought against the Company; actual or alleged breaches of governance

processes or instances of fraud, bribery or corruption; exploration, development and mining risks and

the inherently dangerous nature of the mining industry, and the risk of inadequate insurance or inability

to obtain insurance to cover these risks and other risks and uncertainties; property an d mineral title

risks including defective title to mineral claims or property; changes in national and local government

legislation, taxation, controls, regulations and political or economic developments in Canada and South

Africa; equipment shortages and the ability of the Company to acquire necessary access rights and

infrastructure for its mineral properties; environmental regulations and the ability to obtain and

maintain necessary permits, including environmental authorizations and water use licences; extreme

competition in the mineral exploration industry; delays in obtaining, or a failure to obtain, permits

necessary for current or future operations or failures to comply with the terms of such permits; risks

of doing business in South Africa, including but not limited to, labour, economic and political instability

and potential changes to and failures to comply with legislation; the Company's common shares may

be delisted from the NYSE American or the TSX if it cannot maintain compliance with the appli cable

listing requirements; and other risk factors described in the Company's most recent Form 20-F annual

report, annual information form and other filings with the U.S Securities and Exchange Commission

(the “SEC”) and Canadian securities regulators, whi ch may be viewed at www.sec.gov and

www.sedar.com, respectively. Proposed changes in the mineral law in South Africa if implemented as

proposed would have a material adverse effect on the Company's business and potential interest in

projects. Any forward-looking statement speaks only as of the date on which it is made and, except as

may be required by applicable securities laws, the Company disclaims any intent or obligation to update

any forward -looking statement, whether because of new information, future events or results or

otherwise.

PLATINUM GROUP METALS LTD. …4

The technical and scientific information included herein has been prepared in accordance withNI 43 -

101 which is a rule developed by the Canadian Securities Administrators that establishes standards for

all public disclosure an issuer makes of scientific and technical information concerning mineral projects.

These standards differ significantly from the technical and scientific disclosure requirements of the SEC.

Consequently, the technical and scientific information include d herein, including any reference to

mineral reserves or mineral resources, may not be comparable to the information that would generally

be disclosed by U.S. companies in accordance with the rules of the SEC.