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PTM.TO ·

Platinum Group Metals Ltd. Reports Second Quarter 2026 Results

Financials

838 – 1100 Melville Street

Vancouver, BC V6E 4A6

P: 604-899-5450

F: 604-484-4710

News Release No. 26-494

April 10, 2026

Platinum Group Metals Ltd. Reports Second Quarter 2026 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 second quarter of fiscal 2026 dated February 28, 2026, and provides an update and

outlook. The Company’s material property is 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 (“4E” or “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.

For details of the condensed consolidated interim financial statements (the “ Financial

Statements”) and Management’s Discussion and Analysis (“MD&A”) for the six months

ended February 28, 2026, 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 February 28, 2026, the Waterberg Project is owned by Waterberg JV Resources (Pty)

Ltd. (”Waterberg JV Co.”), which is in turn owned by Platinum Group (37.425%), Mnombo

Wethu Consultants Proprietary Limited (“Mnombo”) (26.0%), HJ Platinum Metals Company

Ltd. (“HJM”) (21.95%) and Impala Platinum Holdings Ltd. (“Implats”) (14.625%). Platinum

Group holds 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. The combined Waterberg JV

Co. ownership of JOGMEC (12.195%) and Hanwa (9.755%) were consolidated into a 21.95%

PLATINUM GROUP METALS LTD. …2

interest for HJM going forward, with JOGMEC to fund 75% of future equity investments into

HJM and Hanwa the remaining 25%.

Since early 2024, Implats has not funded their share of Waterberg Project cash calls and their

interest in Waterberg JV Co. h as diluted by approximately 0.375%. Platinum Group has

funded Implats’ shortfall and the Company’s direct interest in Waterberg JV Co. has increased

concurrently with Implats’ dilution.

Recent Events

On March 10, 2026, the Company entered into an Equity Distribution Agreement with BMO

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

Markets Corp. (the “U.S. Agent” and together with the Canadian Agents, the “Agents”) for

a new at-the-market equity program (the “2026 ATM”) to distribute up to $60.0 million (or

the equivalent in Canadian dollars) of Common Shares (the “Offered Shares”). The Offered

Shares may be issued by the Company to the public from time to time, through the Agen ts,

at the Company’s discretion until December 13, 2026. Offered Shares sold under the 2026

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 staged development program s at the Waterberg Project and

general, corporate and administrative expenses. To date, no sales of Common Shares

pursuant to the 2026 ATM have occurred.

On September 17, 2025, the board of directors of Waterberg JV Co. unanimously approved

a sixth stage of work in the amount of Rand 92.1 million (approximately $5.11 million at the

time) for fiscal year 2026 (“Stage Six Budget ”), to allow for the continuation of work

programs underway. The Stage Six Budget was subsequently approved by a consent

resolution of the requisite majority shareholders on September 26, 2025. The interim budget

covers the period ending August 31, 2026, and includes 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

Program”).

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

of common shares of the Company (“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 cover ed the

period ending August 31, 2025, and include d some components of the Pre-Construction

Program.

PLATINUM GROUP METALS LTD. …3

Results For the Period Ended February 28, 2026

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

Agents for an at-the-market equity program (the “ 2025 ATM”) to distribute up to $50.0

million of Common Shares. Sales of Common Shares on the NYSE American commenced on

January 22, 2025, and to the completion of the 2025 ATM on January 23, 2026, the Company

sold an aggregate of 22,726,804 Common Shares at an average price of $2.20 for gross

proceeds of $50 million before deducting directly attributable costs paid to the Agents of $1.25

million. During the six month period ended February 28, 2026, 13,785,310 Common Shares

were sold at an average price of $ 2.67 for gross proceeds of $ 36.82 million before directly

attributable costs of $0.92 million.

During the six months ended February 28, 2026, the Company incurred a net loss of $3.84

million (February 28, 2025 – net loss of $2.25 million). General and administrative expenses

during the period were $ 2.18 million ( February 28 , 2025 - $2.0 million). Share based

compensation expense was $1.71 million (February 28, 2025 - $0.45 million). The foreign

exchange loss recognized in the current period was $0.43 million (February 28, 2025 – gain

of $0.15 million) due primarily to the U.S. Dollar falling in value relative to the Canadian Dollar

during the period.

At February 28, 2026, finance income consisting of interest earned in the six month period

amounted to $0.53 million (February 28, 2025 - $0.10 million). Basic and diluted l oss per

share for the six months ended February 28, 2026, was $0.03 (February 28, 2025 - $0.02).

Accounts receivable at February 28, 2026, totalled $0.13 million (August 31, 2025 - $0.08

million) while accounts payable and other liabilities amounted to $ 1.68 million (August 31,

2025 - $0.78 million). Accounts receivable was comprised primarily of value added taxes

repayable to the Company in South Africa. Accounts payable consisted primarily of accruals

and payables related to accounting costs, legal costs and project engineering and

maintenance costs on the Waterberg Project.

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

month period ended February 28, 2026, were approximately $1.16 million (February 28, 2025

- $0.99 million). At period end, $55.5 million (February 28 , 202 5 - $45.9 million) in

accumulated net costs were capitalized to the Waterberg Project. Total expenditures on the

property since inception to February 28, 2026, are approximately $92.3 million.

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

Outlook

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

PLATINUM GROUP METALS LTD. …4

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.

Approximately one half of the $21.0 million Pre-Construction Program described above

remains to be completed , including proposed work on initial road access, water supply,

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

and advancement of the Waterberg Social & Labour Plan (“SLP”). Remaining components

are being undertaken in phases as incremental budgets are approved. The Stage Six Budget

allows for the continuation of this work during the period ending August 31, 2026.

The Company and Waterberg JV Co. are assessing commercial alternatives for mine

development financing and concentrate offtake. As a part of the Company’s investigation of

smelting and base metal refining options, t he Company has engaged in discussions with all

South African integrated producers with a view to negotiating formal concentrate offtake

arrangements for the Waterberg Project. To date no terms have been agreed. As an

alternative, over the past three years the Company has studie d and proposed the

establishment of smelter and base metal refinery facilities located in either Saudi Arabia or

South Africa.

Before any processing of materials in Saudi Arabia could occur, South African Government

authorization for the export of concentrate or matte would be required and such approval has

been requested. Senior South African Government officials have stated their preference for

beneficiation to occur in South Africa. The Company is also investigating opportunities to

collaborate and co-invest with smaller furnace operators in South Africa who are interested

to modify and expand their existing operations such that the efficient processing of Waterberg

concentrate could be undertaken . In such a scenario the Waterberg Project could be

developed in stages so that smelting capacity could also be developed in stages.

The base case for mine development in the Waterberg DFS Update is focused first on lower

cost, bulk mining of F-Zone material from the F-Central deposit, followed by later mining from

the T-Zone. Although no decision has been made to alter the base case s cenario, given the

current price and outlook for gold, one concept being investigated is to begin staged

development at the Waterberg Project, first with decline development into the T -Zone,

followed by smaller scale T-Zone mining and then later expansion into the F-Central deposit

at the scale planned in the Waterberg DFS Update. As compared to F -Central ore, proven

and probable reserves for the T -Zone have a more favourable 4E prill split of approx. 29%

platinum (28% F-Central), 51% palladium (66% F-Central), 1% rhodium (1% F-Central) and

19% gold (5% F-Central). T-Zone proven and probable reserves also have a higher 4E grade

of 3.84 g/t (2.68 g/t F-Central).

PLATINUM GROUP METALS LTD. …5

The F-Central deposit, with true mining widths (hanging wall to footwall) of up to 107 metres,

and with approximately 87% of production planned from mining widths more than 15 metres,

is very favourable to low -cost bulk mining. The T -Zone, with approximat ely 92% of

production planned from mining widths between 2.4 metres and 15 metres, and 8% from

areas up to 20 metres thick, also allows for bulk mining (being longitudinal longhole stoping),

albeit at a higher cost per tonne versus the F-Central deposit.

At current metal prices, increased revenue per tonne from mining the T -Zone would more

than offset higher mining costs, and may allow for a lower capex, staged development

approach as described above. Internal studies are examining the financial impact of deferring

capital for power lines, paste backfill, milling capacity, and underground conveyors, while first

operating a T-Zone mine before using free cash flow to then develop a second stage F-Central

mine. T-Zone ore and waste can be trucked to surface for processing during initial mining

stages, allowing for a shortened ore build -up period and a reduced capital footprint in both

underground development and other underground infrastructure requirements. The use of

Jameson Cell high-intensity, compact flotation technology is also being investigated.

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. A new five year SLP commencing in 2026 has been developed with community

input and submitted to the DMR for review and approval.

The Company continues to advance 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. The investment in Lion creates a potential

vertical integration with a broader industrial market development strategy to bring new

technologies to market utilising the catalytic properties of pla tinum and palladium . The

Company and Valterra are currently assessing progress to date and potential next steps

towards the commercialisation and promulgation of the developed technology. For more

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

Form 40-F.

Environmental, Social and Governance

Platinum Group recently received the 2025 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 E SG performance. For 2025, Platinum Group

achieved an overall score of BBB with a range of CC to AAA based on the information

provided. Digbee ESG has been deve loped 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

2025 Digbee ESG Report please refer to the Company’s MD&A, AIF and Form 40-F.

PLATINUM GROUP METALS LTD. …6

Regulatory

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 PGM

and base metal deposit located in South Africa. The Waterberg Project was discovered by

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

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

PLATINUM GROUP METALS LTD. …7

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

of development activities , potential alternatives to the existing Waterberg Project

development plan and any related economic analysis, obtaining concentrate offtake or

processing, the size and cost of the Waterberg Project, the economic feasibility of establishing

a new PGM smelter and BMR in Saudi Arabia or elsewhere, work with local communities, the

ability of the Company to obtain all required permitting, surfac e 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; the impact of international trade

disputes and the imposition of tariffs, international conflict and other geopolitical tensions and

events; the Company’s inability to generat e 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 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 as

reported in the Waterberg DFS Update; 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 production; fluctuations in the relative values of the U.S. Dollar, the South African 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 t he 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 to 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 i nstances 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 u ncertainties; property and 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; pandemics and other public health crises; the Company’s common shares

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

applicable listing requirements; and other risk factors described in the Company’s most recent

AIF and Form 40-F, other filings with the SEC and Canadian securities regulators, which may

PLATINUM GROUP METALS LTD. …8

be viewed at www.sec.gov and www.sedarplus.ca, respectively. Proposed changes in the

mineral law in South Africa, if implemented as proposed, may 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.

The Waterberg DFS Update has been prepared in accordance with NI 43-101 and S-K 1300.

The technical and scientific information contained in this news release has been prepared in

accordance with NI 43-101, which differs from the standards adopted by the SEC. Accordingly,

the technical and scientific information contained in this news release, including any estimates

of mineral reserves and mineral resources, may not be comparable to similar information

disclosed by U.S. companies subject to the disclosure requirements of the SEC.