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Platinum Group Metals Ltd. Enters Into At-The-Market Equity Distribution Agreement (Vancouver, B.C. / Johannesburg)

Financings

838 – 1100 Melville Street

Vancouver, BC V6E 4A6

P: 604-899-5450

F: 604-484-4710

News Release No. 26-493

March 10, 2026

Platinum Group Metals Ltd. Enters Into

At-The-Market Equity Distribution Agreement

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

American) (“Platinum Group” or the “ Company”) reports that it has entered into a new

equity distribution agreement effective as of March 10, 2026 (the “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 Agent s, the

“Agents”) for a new at-the-market equity program (“2026 ATM Program”).

As previously announced, the Company established an at -the-market equity program on

December 5, 2024 (the “2024 ATM Program”) pursuant to a prospectus supplement dated

December 5, 2024 to the Company's short form base shelf prospectus dated November 13,

2024. As of January 2026, the Company's 2024 ATM Program has been completed in full.

The Distribution Agreement will allow the Company to distribute up to US$60.0 million (or the

equivalent in Canadian dollars) of common shares of the Company (the “Offered Shares”)

under the 2026 ATM Program. 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 2026 ATM Program, if any, will be sold at the prevailing market price at the time of

sale. The net proceeds of any such sales under the 2026 ATM Program are anticipated to be

used, over the following 24 months, for (i) staged development programs at the Company’s

Waterberg Project; and (ii) general corporate and administrative purposes.

Under the Distribution Agreement, sales of Offered Shares will be made by the Agents through

“at-the-market distributions” as defined in National Instrument 44 -102 – Shelf Distributions

on the Toronto Stock Exchange (“TSX”), NYSE American , LLC (“NYSE American”) or any

other trading market for the Offered Shares in Canada or the United States or as otherwise

agreed between the Agents and the Company. The Company is not obligated to make any

sales of Offered Shares under the Distribution Agreement. Unless ear lier terminated by the

Company or the Agents as permitted therein, the Distribution Agreement will terminate upon

the earlier of (i) December 13, 2026 and (ii) the date that the aggregate gross sales proceeds

of the Offered Shares sold under the 2026 ATM Program reaches the aggregate amount of

US$60.0 million (or the equivalent in Canadian dollars).

The 2026 ATM Program is being made pursuant to a prospectus supplement to the Company's

short form base shelf prospectus dated November 13, 2024 and forming a part of the

Company’s U.S. registration statement on Form F-10 filed October 31, 2024, as amended on

November 13, 2024. The prospectus supplement relating to the 2026 ATM Program has been

filed with the securities commissions in each of the provinces and territories of Canada and

with the United States Securities and Exchange Commission.

PLATINUM GROUP METALS LTD. …2

The Company has relied on the exemption for “Eligible Interlisted Issuers” under Section

602.1 of the TSX Company Manual in connection with the listing of the Offered Shares on the

TSX.

Copies of the prospectus supplement, the corresponding base shelf prospectus, the

Distribution Agreement and other relevant documents are available on SEDAR + at

www.sedarplus.ca and EDGAR at www.sec.gov. Alternatively, copies of the prospectus

supplement relating to the 2026 ATM Program, the corresponding base shelf prospectus and

any amendment to the documents may be obtained, without charge upon request by

contacting:

Canadian Short Form Base Shelf

Prospectus and Prospectus Supplement:

BMO Nesbitt Burns Inc.

Mississauga Distribution Centre C/O

The Data Group of Companies

80 Ambassador Drive

Mississauga, Ontario L5T 2Y9

or by emailing [email protected]

U.S. F-10 Registration Statement, as

amended, and Prospectus Supplement:

BMO Capital Markets

151 W 42nd Street, 32nd Floor

New York, NY 10036

Attention: Equity Syndicate Department

or by emailing [email protected]

This press release does not constitute an offer to sell or the solicitation of an offer to buy

securities, nor will there be any sale of, the securities in any jurisdiction in which such offer,

solicitation or sale would be unlawful.

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 operated in joint-venture with Impala Platinum Holdings Ltd.,

Mnombo Wethu Consultants (Pty) Ltd. (“ Mnombo”), and HJ Platinum Metals Company Ltd .

on behalf of Japan Organization for Metals and Energy Security and Hanwa Co. Ltd.

On behalf of the Board of Directors 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

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

PLATINUM GROUP METALS LTD. …3

(collectively “forward -looking statements”). Forward -looking statements are typically

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

“will”, “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 news release include, but are not limited to,

the future issuance of Offered Shares sold under the 2026 ATM Program; the ability to allocate

of the proceeds from any sale of the Offered Shares as described in the Prospectus

Supplement; the aggregate gross proceeds of the 2026 ATM Program; the use of proceeds

from any sales of Offered Shares under the 2026 ATM Program; 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, inc luding but not

limited to, the Company may not sell any of the Offered Shares or may raise less than the

maximum offering amount under the 2026 ATM Program; management has broad discretion

in the use of proceeds from the 2026 ATM Program; compliance with regulatory requirements;

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 negative cash flow; the

Company’s ability to continue as a going concern; the Company’s properties may not be

brought into a stat e 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 production; fluctuations in the relative values of the U.S. Dollar,

the South African Rand and the Canadian Dollar; volatility in metals prices; the un certainty

of alternative funding sources for Waterberg JV Resources (Pty) Ltd (“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 to retain its key management employees and

skilled and experienced personnel; conflicts of intere st; 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 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 ob tain,

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 fa ilures to comply with legislation;

pandemics and other public health crises; the Company’s common shares may be delisted

PLATINUM GROUP METALS LTD. …4

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 Form 40-F

annual report, AIF and other filings, including the short form base shelf prospectus, prospectus

supplement and the Form F-10 registration statement, with the SEC and Canadian securities

regulators, which may be viewed at www.sec.gov and www.sedar plus.ca, 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.