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PTM.TO ·

Platinum Group Metals Ltd. Reports Third Quarter 2025 Results

Financials

838 – 1100 Melville Street

Vancouver, BC V6E 4A6

P: 604-899-5450

F: 604-484-4710

News Release No. 25-489

July 11, 2025

Platinum Group Metals Ltd. Reports Third Quarter 2025 Results

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

(“Platinum Group”, “PTM” or the “Company”) reports the Company’s financial results for

the nine-month period ended May 31 , 202 5, and provides an update and outlook. The

Company is focused on advancing the Waterberg project located on the Northern Limb of the

Bushveld Complex in South Africa (the “Waterberg Project”). The Waterberg Project is

planned as a fully mechanised, shallow, decline access platinum, palladium, rhodium and gold

(“PGM”) mine, including by-product copper and nickel production, and is projected to be one

of the largest and lowest cost underground platinum group metals (“PGM” or “PGMs”) mines

globally.

The Company’s near-term objectives are to advance the Waterberg Project to a development

and construction decision including the arrangement of construction financing and concentrate

offtake agreements. The Company is also advancing an initiative through Lion Battery

Technologies Inc. (“ Lion”) using platinum and palladium in lithium battery technologies in

collaboration with an affiliate of Valterra Platinum Limited (previously Anglo American

Platinum Limited) (“Valterra”), and Florida International University (“FIU”).

For details of the condensed consolidated interim financial statements for the nine months

ended May 31, 2025 (the “ Financial Statements ”), and Management’s Discussion and

Analysis (“MD&A”) for the nine months ended May 31, 2025, please see the Company’s filings

on SEDAR+ (www.sedarplus.ca) or on EDGAR (www.sec.gov). Shareholders are encouraged

to visit the Company’s website at www.platinumgroupmetals.net. Shareholders may receive

a hard copy of the complete Financial Statements and MD&A from the Company free of charge

upon request.

All amounts herein are reported in United States dollars unless otherwise specified. The

Company holds cash in Canadian dollars, United States dollars and South African Rand .

Changes in exchange rates may create variances in the cash holdings or results reported.

Project Ownership

As of May 31, 2025, the Waterberg Project is owned by Waterberg JV Resources (Pty) Ltd.

(”Waterberg JV Co.”), which is in turn owned by Platinum Group (37.32%), Mnombo Wethu

Consultants (Pty) Ltd. (“Mnombo”) (26.00%), HJ Platinum Metals Company Ltd. (“ HJM”)

(21.95%) and Impala Platinum Holdings Ltd. (“ Implats”) (14.73%). Platinum Group holds

PLATINUM GROUP METALS LTD. …2

a further 12.97% indirect interest in Waterberg JV Co. through a 49.9% interest in Mnombo.

HJM was established in 2023 by Japan Organization for Metals and Energy Security

(“JOGMEC”) and Hanwa Co. Ltd. (“Hanwa”) as a special purpose company to hold and fund

their aggregate future equity interests in the Waterberg Project with JOGMEC expecting to

fund 75% of future equity investments into HJM going forward.

Recent Events

On May 29, 2025, the Company reported the closing of a non-brokered private placement

of common shares at a price of $1.26 per common share. An aggregate of 800,000 common

shares were subscribed for and issued to existing major beneficial shareholder, Hosken

Consolidated Investments Limited (“HCI”) through its subsidiary Deepkloof Limited, resulting

in gross proceeds to the Company of $1.0 million (the “Private Placement”). Closing of the

Private Placement allowed HCI to return to a 26% interest in the Company at that time.

On February 18, 2025, the board of directors for Waterberg JV Co. unanimously approved

a Rand 42 million interim budget (Approximately $2.27 million at the time) to allow the

continuation of work programs for the Waterberg Project. The interim budget will cover the

period ending approximately August 31, 2025, and will include some components of a $21.0

million pre-construction work program approved in principle for the Waterberg Project by the

directors and shareholders of Waterberg JV Co. on October 18, 2022 (the “Pre-Construction

Budget”).

On December 5, 2024, the Company entered into an Equity Distribution Agreement with

BMO Nesbit Burns Inc. and Beacon Securities Limited (the “Canadian Agents”) and BMO

Capital Markets Corp. (the “ U.S. Agent ” and together with the Canadian Agent s, the

“Agents”) for a new at -the-market equity program (the “ 2025 ATM”) to distribute up to

$50.0 million (or the equivalent in Canadian dollars) of Common Shares (the “ Offered

Shares”). The Offered Shares will be issued by the Company to the public from time to time,

through the Agents, at the Company’s discretion. The Offered Shares sold under the 2025

ATM will be sold at the prevailing market price at the time of sale. The net proceeds of any

such sales will be used for the Waterberg Project pre-construction site work, engineering and

preparation, a potential phase one development program at the Waterberg Project, a Saudi

Arabia smelter and base metal refinery definitive feasibilit y study, a contingency provision

and general, corporate and administrative expenses.

Sales of Common Shares on the NYSE American pursuant to the 2025 ATM through the U.S.

Agent commenced on January 22, 2025 , and during the nine months ended May 31, 2025,

the Company issued 4,350,928 Common Shares, at an average price of $1.32 per share, for

gross proceeds of $5.75 million. Directly attributable expenses and legal fees to implement

and maintain the 2025 ATM in good standing, and for commissions on equity sales, totaled

$1.09 million during the nine months ended May 31, 2025. After May 31, 2025, to the date

of this news release, the Company sold a further 4,172,397 Common Shares pursuant to the

2025 ATM at an average price of $1.60 per share, for net proceeds of $6.52 million.

PLATINUM GROUP METALS LTD. …3

On November 26, 2024, the Company entered a memorandum of understanding (“MOU”)

with Ajlan & Bros Company for Mining, a subsidiary of Ajlan & Bros Holding (“ Ajlan”), and

the Ministry of Investment of Saudi Arabia (“ MISA”) as a part of the Global Supply Chain

Resilience Initiative, for the setup of a proposed platinum group metals smelter (“ PGM

Smelter”) and base metal refinery (“BMR”) to be located in Saudi Arabia. Ajlan is one of the

largest private sector diversified conglomerates in the Middle East. Earlier, in December 2023,

Ajlan and the Company entered into a Cooperation Agreement (as defined below) to study

the establishment of a stand-alone PGM Smelter and BMR in Saudi Arabia. According to the

terms of the MOU, MISA will offer strategic guidance and study potential financial support to

the proposed PGM Smelter and BMR and the Waterberg Project located in South Africa.

On November 13, 2024, the Company filed a final short form base shelf prospectus (the

“Shelf Prospectus”) with the securities regulatory authorities in each of the provinces and

territories of Canada and a corresponding registration statement on Form F -10 (the

“Registration Statement”) with the U.S. Securities and Exchange Commission (“SEC”),

under the Multijurisdictional Disclosure System established between Canada and the United

States. Pursuant to the Shelf Prospectus and the Registration Statement, the Company may

offer and sell Common Shares, debt securities, warrants, subscription receipts, or a

combination thereof up to an aggregate initial offering amount of $250 million (or its

equivalent in Canadian dollars) from time to time, separately or together, in amounts, at

prices and on terms to be determined based on market conditions at the time of the offering

and as set out in an accompanying prospectus supplement, during the 25-month period that

the Shelf Prospectus and the Registration Statement remain effective.

On September 16, 2024 , the Company reported positive results from an Independent

Definitive Feasibility Study Update ( the “ Waterberg DFS Update”) for the Waterberg

Project. The associated technical report entitled “Waterberg Definitive Feasibility Study

Update, Bushveld Igneous Complex, Republic of South Africa”, with an effective date of August

31, 2024, was filed on SEDAR+ on October 9, 2024. The Waterberg DFS Update was prepared

by independent qualified persons in accordance with Canadian National Instrument 43-101

Standards of Disclosure for Mineral Projects (“NI 43-101”) and Subpart 229.1300 and Item

601(b)(96) of the SEC's Regulation S -K ( collectively, “ S-K 1300”). The Waterberg DFS

Update included revised mineral resource and mineral reserve estimates. For details of the

Waterberg DFS Update see the Company’s news release dated September 16, 2024 , the

MD&A, and the technical report referred to above.

Results For The Nine Months Ended May 31, 2025

During the nine months ended May 31, 2025, the Company incurred a net loss of $3.40 million

(May 31, 2024 – net loss of $4.02 million). General and administrative expenses during the

period were higher at $2.78 million (May 31, 2024 - $2.57 million) due to the reimbursement

of legal costs in the previous comparable period. Stock based compensation was lower at

$0.79 million in the current period (May 31, 2024 - $1.61 million) due to the revaluation of

outstanding deferred share units in the current period. The foreign exchange gain recognized

in the current period was $0.06 million (May 31, 2024 - $0.04 million gain) due primarily to

PLATINUM GROUP METALS LTD. …4

the U.S. dollar increasing in value relative to the Canadian dollar during the nine-month

period.

At May 31 , 2025, finance income consisting of interest earned in the nine month period

amounted to $0.14 million (May 31, 2024 - $0.35 million). Basic and diluted loss per share

for the nine months ended May 31, 2025, amounted to $0.03, versus $0.04 per share for the

comparable period ended May 31, 2024.

Accounts receivable and 2025 ATM proceeds receivable at May 31, 2025, totalled $0.22 million

(August 31, 2024 - $0.23 million) and $0.07 million (August 31, 2024 – Nil) respectively,

while accounts payable and other liabilities amounted to $ 0.75 million (August 31, 2024 -

$0.91 million). Accounts receivable were comprised primarily of value added taxes repayable

to the Company in South Africa. Accounts payable consisted primarily of professional fees

payable in relation to the preparation and filing of the Shelf Prospectus, the Registration

Statement and the 2025 ATM, as well as for project engineering and maintenance costs on

the Waterberg Project.

Total expenditures on the Waterberg Project, before partner reimbursements, for the nine

months ended May 31, 2025, were approximately $1.6 million (May 31, 2024 - $2.3 million).

At period end, $48.0 million in accumulated net costs were capitalized to the Waterberg

Project. Total expenditures on the property since inception to May 31, 2025, are

approximately $91 million.

For more information on mineral properties, see Note 3 of the Financial Statements.

Smelting and Refining Update

On December 20, 2023, the Company announced a Cooperation Agreement (the

“Cooperation Agreement”) with Ajlan to study the establishment of a stand -alone PGM

Smelter and BMR in Saudi Arabia. The Cooperation Agreement encompasses three phases:

a global PGM concentrate market study (the “Market Study”), a Definitive Feasibility Study

for the construction and operation of the PGM Smelter and BMR in Saudi Arabia (the “Smelter

DFS”), and an option to form an incorporated 50:50 joint venture following the completion of

the Smelter DFS.

An initial trade -off study was completed in mid 2023 to first determine the viability of

exporting PGM concentrate from South Africa to Saudi Arabia. The Market Study was

completed in late 2024 by a globally recognized consulting group specializing in PG Ms and

associated base metal by-products. Based on the analysis, the combination of concentrate

from the Waterberg Project and end of life auto catalysts and petrochemical catalysts, sourced

from the Gulf Region, could justify the scale required to construct a long term PG M smelting

and refining complex in Saudi Arabia.

A key requirement for the establishment of a PGM Smelter and BMR in Saudi Arabia would be

a long-term South African government approval for the export of unrefined precious metals

PLATINUM GROUP METALS LTD. …5

in concentrate. Platinum Group has been working with the Government of South Africa to

identify local beneficiation opportunities and to analyze the possible impact of exporting

concentrate on the value chain. Through these discussions the Government of South Africa

has expressed their preference and support for beneficiation in South Africa. As a result, the

Company, Ajlan, MISA and the Government of South Africa are now considering the concept

of establishing a matte furnace in South Africa capable of smelting Waterberg Project

concentrate. Such a facility would ideally be located near the Waterberg Project with existing

power, water and environmental authorizations. The converter matte produced would be

shipped to Saudi Arabia for further processing through a BMR , at which time spent auto

catalysts and other PGM bearing materials could be co-processed.

The Company and Ajlan are currently conducting a trade off study and developing a scope of

work and cost estimate for the engineering studies required to assess the above scenario ,

should it be chosen as the primary plan . One noteworthy consideration would be the much

lower volume of material to be shipped to Saudi Arabia. Rather than shipping up to 130,000

tonnes of concentrate a year, or approximately fourteen concentrate trucks a day, the volume

of converter matte to be shipped would be reduced to approximately 8,000 tonnes a year, or

approximately one truck a day.

Outlook

The Company’s primary business objective is to advance the Waterberg Project to a

development and construction decision. PTM is the operator of the Waterberg Project as

directed by a technical committee comprised of representatives from joint venture partners

Implats, Mnombo, and HJM.

In accordance with the Pre -Construction Budget, Waterberg JV Co. has recently completed

exploration and engineering work related to the Waterberg DFS Update and is working on

engineering and planning related to initial road access, construction water supply,

infrastructure, essential site facilities, a first phase accommodation lodge, and a site

construction power supply from state utility Eskom.

Work pursuant to the Waterberg Social & Labour Plan (“SLP”) has been undertaken and

further SLP work is both underway and planned. Community infrastructure work has been

completed and is underway at present. Skills and needs assessment surveys were completed

in 2023, which will help to inform planned education and training programs. In 2024, 49

learners from host communities completed a portable skills training program and 15 tertiary

education bursaries were granted between 2023 and 2025. Engagement wi th local

communities has been ongoing and together the parties have agreed upon the location of

project facilities and infrastructure.

The Company continues to work closely with regional and local communities and their

leadership on mine development plans to achieve optimal outcomes and best value to all

stakeholders.

PLATINUM GROUP METALS LTD. …6

Before a construction decision can be undertaken , arrangements will be required for

Waterberg Project concentrate offtake or processing. The Company and Waterberg JV Co.

are assessing commercial alternatives for mine development financing and concentrate

offtake. In addition to the Company’s investigation of smelting and base metal refining

options in Saudi Arabia (as described above), the Company has discussed possibilities with

all major South African smelter operators, including Implats, with a view to negotiating formal

concentrate offtake arrangements for the Waterberg Project.

As the world seeks to decarbonize and look for solutions to climate change, the adoption of

battery electric vehicles (“BEVs”) has been forecast to reduce the future demand for PGMs

used in autocatalysis. More recently, the rate of adoption for BEVs has slowed down. This

slowdown may be attributed to several factors, including the availability of supporting

infrastructure (particularly in emerging markets), a shift towards hybrid vehicles, and

potential challenges in supply chains. Growth rates vary by region. For example, China has

seen strong BEV adoption as compared to other jurisdictions.

The unique properties of PGMs as powerful catalysts are being applied to various technologies

as possible solutions for more efficient energy generation and storage, which may create new

demand for PGMs . The Company’s battery technology initiative through Lion with partner

Valterra represents one such new opportunity in the high-profile lithium battery research and

innovation field. The investment in Lion creates a potential vertical integration with a broader

industrial market development strategy to bring new technologies to market which use

palladium and platinum. Research and development efforts by FIU on behalf of Lion continue.

Technical results from Lion’s research may have application to most lithium-ion and lithium-

sulfur battery chemistries.

Although platinum and palladium are exempt, as they are considered critical minerals, the

new global tariffs recently announced by the United States administration in Washington, DC,

layered on top of previously announced tariffs on auto mobiles, steel, aluminum, etc. , have

raised uncertainty regarding markets in general and specifically to the production and sale of

automobiles and light duty vehicles. A period of uncertainty is likely as investors and

consumers consider the impact of these tariffs, and as the level of retaliation and market

diversification by other nations becomes apparent.

International conflict and other geopolitical tensions and events, including war, military action,

terrorism, trade disputes, and international responses thereto have historically led to, and

may in the future lead to, uncertainty or volatility in global energy, supply chain and financial

markets, which may have a negative impact on the demand for PGMs.

Notwithstanding the above, platinum and palladium prices have recently been increasing due

to a combination of factors including strong Chinese demand, persistent supply concerns, and

renewed investor interest. Specifically, platinum is seeing increased demand as a substitute

for gold in jewelry and as a hedge, while palladium demand for use in auto catalytic converters

has remained strong.

PLATINUM GROUP METALS LTD. …7

For more detail, please see the Company’s MD&A and Annual Information Form (“AIF”).

Environmental, Social and Governance

During the nine-month period ended May 31, 2025 Platinum Group received its fourth annual

Environmental, Social and Governance (“ ESG”) disclosure report from Digbee Ltd.

(“Digbee”), a United Kingdom based company that has developed an industry standard ESG

disclosure framework for the mining sector providing a right -sized, future looking set of

frameworks against which they can credibly disclose, track, compare and improve their ESG

performance. For 2024, Platinum Group achieved an overall score of BBB with a range of CC

to AAA based on the information provided. Digbee ESG has been developed in consultation

with mining companies, ESG specialists and capital providers and is endorsed by leading

financial institutions, producing mining companies and other industry stakeholders. Digbee’s

reporting framework is aligned with global standards, including the Equator Principles. For

more details about the Company’s 2024 Digbee ESG Report please refer to the Company’s

MD&A, AIF and Annual Report on Form 40-F (“Form 40-F”).

Regulatory

The Company advises that its consolidated Financial Statements for the fiscal year ended

August 31, 202 4, included in the Company's Form 40-F, contain an audit report from its

independent registered public accounting firm that includes a going concern emphasis of

matter. The foregoing statement is required by Section 610(b) of the NYSE American

Company Guide.

As well as the discussions within this news release, the reader is encouraged to also see the

Company’s disclosure made under the heading “Risk Factors” in the Company’s current AIF

and Form 40-F.

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 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

Platinum Group Metals Ltd. is the operator of the Waterberg Project; a bulk underground

palladium and platinum deposit located in South Africa. The Waterberg Project was

discovered by Platinum Group and is being jointly developed with Implats, Mnombo, and HJM.

PLATINUM GROUP METALS LTD. …8

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.

This news 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 typically

identified by words such as: “believe”, “expect”, “anticipate”, “intend”, “estimate”, “may”,

“plans”, “would”, “will”, “could”, “can”, “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 news

release include, but are not limited to, statements regarding the success of the Company’s

objective to advance the Waterberg Project to a development and construction decision, the

findings of the Waterberg DFS Update, the plan for and development of the Waterberg Project

and the potential benefits and results thereof including that it is projected to become one of

the largest and lowest cost underground PGM mines globally, financing and mine development

of the Waterberg Project, potential commercial alternatives for mine development, obtaining

concentrate offtake or processing, the size and cost of the Waterberg Project, the 2025 ATM

and the use of proceeds under the 2025 ATM, the economic feasibility of establishing a new

PGM smelter and BMR in Saudi Arabia , the economic feasibility of establishing a new PGM

matte furnace in South Africa, the possible effect of tariffs and other trade policy

announcements by the United States Government in Washington, DC and other countries ,

work with local communities, the ability of the Company to obtain all required permitting,

surface access, and infrastructure servitudes, the effect of battery electric vehicles on the

market for PGMs, the use of PGMs in solutions to climate change, and the Company’s other

future plans and expectations. Although the Company believes any forward -looking

statements in this news release are reasonable, 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 rising global

inflation and increased potential supply chain disruptions; international conflict and other

geopolitical tensions and events; the Company’s inability to generate sufficient cash flow or

raise additional capital, and to comply with the terms of any new indebtedness; additional

financing requirements; and any new indebtedness may be secured, which potentially could

result in the loss of any assets pledged by the Company; the Company’s history of losses and