File: Attachment news2026-07.pdf

BITTERROOT RESOURCES LTD.

PO Box 91878, West Vancouver, BC, V7V 4S4

tel 604 922 1351 www.bitterrootresources.com

NEWS RELEASE

September 16, 2026

BITTERROOT RESOURCES LTD. C$2,400,000 PRIVATE PLACEMENT

Bitterroot Resources Ltd. (symbol BTT, TSX-V) plans to issue up to 20,000,000 units in a non- brokered private placement. The units are priced at C$0.12, consisting of one common share plus one half of a common share purchase warrant exercisable at C$0.20 for two years.

The proceeds of the private placement will be used to fund drilling and associated exploration costs at the 51%-owned LM Nickel-Copper Project in the Upper Peninsula of Michigan and for general working capital. Bitterroot's Michigan subsidiary Trans Superior Resources, Inc. (Trans Superior) is the LM Project operator, with the remaining 49% held by Michigan-based, privately held, Below Exploration Inc.

Additionally, Trans Superior has entered into an agreement with the U.S. Department of War (DoW) whereby the DoW will provide up to US$5,223,431 in Defence Production Act (DPA) Title III funding to Trans Superior. The DoW investment will reimburse 50% of approved exploration and associated costs incurred on the LM Project. The DPA Title III funding is non- dilutive.

Details of the LM Nickel-Copper Project are available on www.bitterrootresources.com.

Subject to TSX-V approval, the securities issued pursuant to the financing will be subject to a four- month hold period under applicable securities laws.

This news release does not constitute an offer or solicitation to sell any of these securities in the United States. The securities will not be registered under the United States Securities Act of 1933, as amended ("the US Securities Act"), or under any State securities laws. The securities may not be offered or sold within the United States or to U.S. Persons unless registered under the U.S Securities Act and applicable State securities laws, unless an exemption from such registration is available.

ON BEHALF OF THE BOARD OF DIRECTORS

Michael S. Carr CEO and Director

Contact: tel. 604 922 1351, email infoman@bitterrootresources.com Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

FORWARD LOOKING STATEMENTS: Certain statements contained in this press release may constitute forward- looking statements under Canadian securities legislation. Generally, forward-looking information can be identified by the use of forward-looking terminology such as "expects" or "it is expected", or variations of such words and phrases or statements that certain actions, events or results "will" occur. This document contains statements about expected or anticipated future events and/or financial results that are forward-looking in nature and as a result, are subject to certain risks and uncertainties, such as general economic, market and business conditions, regulatory processes and actions, technical issues, new legislation, competitive conditions, the uncertainties resulting from potential delays or changes in plans, the occurrence of unexpected events and the company's ability to execute and implement its future plans. Actual events may differ materially from those projected in the forward-looking statements. When relying on forward- looking statements to make decisions, investors and others should carefully consider the foregoing factors and other uncertainties and should not place undue reliance on such forward-looking statements. The Company does not undertake to update any forward-looking statements, except as may be required by applicable securities laws. For such forward-looking statements, we claim the safe harbour for forward-looking statements within the meaning of the Private Securities Legislation Reform Act of 1995.

File: '\\swfile\EmailIn\20260916 164905 Attachment news2026-07.docx'

BITTERROOT RESOURCES LTD.

PO Box 91878,

West Vancouver, BC, V7V 4S4

tel 604 922 1351

www.bitterrootresources.com

NEWS RELEASE

September 16, 2026

BITTERROOT RESOURCES LTD. C$2,400,000 PRIVATE PLACEMENT

Bitterroot Resources Ltd. (symbol BTT, TSX-V) plans to issue up to 20,000,000 units in a non-brokered private placement. The units are priced at C$0.12, consisting of one common share plus one half of a common share purchase warrant exercisable at C$0.20 for two years.

The proceeds of the private placement will be used to fund drilling and associated exploration costs at the 51%-owned LM Nickel-Copper Project in the Upper Peninsula of Michigan and for general working capital. Bitterroot's Michigan subsidiary Trans Superior Resources, Inc. (Trans Superior) is the LM Project operator, with the remaining 49% held by Michigan-based, privately held, Below Exploration Inc.

Additionally, Trans Superior has entered into an agreement with the U.S. Department of War (DoW) whereby the DoW will provide up to US$5,223,431 in Defence Production Act (DPA) Title III funding to Trans Superior. The DoW investment will reimburse 50% of approved exploration and associated costs incurred on the LM Project. The DPA Title III funding is non-dilutive.

Details of the LM Nickel-Copper Project are available on www.bitterrootresources.com.

Subject to TSX-V approval, the securities issued pursuant to the financing will be subject to a four-month hold period under applicable securities laws.

This news release does not constitute an offer or solicitation to sell any of these securities in the United States. The securities will not be registered under the United States Securities Act of 1933, as amended ("the US Securities Act"), or under any State securities laws. The securities may not be offered or sold within the United States or to U.S. Persons unless registered under the U.S Securities Act and applicable State securities laws, unless an exemption from such registration is available.

ON BEHALF OF THE BOARD OF DIRECTORS

Michael S. Carr

CEO and Director

Contact: tel. 604 922 1351, email infoman@bitterrootresources.com

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

FORWARD LOOKING STATEMENTS: Certain statements contained in this press release may constitute forward-looking statements under Canadian securities legislation. Generally, forward-looking information can be identified by the use of forward-looking terminology such as "expects" or "it is expected", or variations of such words and phrases or statements that certain actions, events or results "will" occur. This document contains statements about expected or anticipated future events and/or financial results that are forward-looking in nature and as a result, are subject to certain risks and uncertainties, such as general economic, market and business conditions, regulatory processes and actions, technical issues, new legislation, competitive conditions, the uncertainties resulting from potential delays or changes in plans, the occurrence of unexpected events and the company's ability to execute and implement its future plans. Actual events may differ materially from those projected in the forward-looking statements. When relying on forward-looking statements to make decisions, investors and others should carefully consider the foregoing factors and other uncertainties and should not place undue reliance on such forward-looking statements. The Company does not undertake to update any forward-looking statements, except as may be required by applicable securities laws. For such forward-looking statements, we claim the safe harbour for forward-looking statements within the meaning of the Private Securities Legislation Reform Act of 1995.