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Western Copper and GOLD Extends Technical Collaboration with RIO Tinto

Partnerships & JV

WESTERN COPPER AND GOLD EXTENDS TECHNICAL

COLLABORATION WITH RIO TINTO

VANCOUVER, BC

,

June 16, 2025

/CNW/ - Western Copper and Gold Corporation ("Western" or the "Company") (TSX: WRN)

(NYSE American: WRN) is pleased to announce an extension and revision of its Investor Rights Agreement ("IRA") with Rio Tinto

Canada Inc. ("Rio Tinto").

As part of a revised IRA, Rio Tinto will continue to hold a seat on the

Casino

Technical and Sustainability Committee ("TSC"), along

with one representative from Mitsubishi Materials and three from Western, to promote ongoing technical collaboration. Rio Tinto's

existing standstill and trading restrictions, along with certain other obligations, will remain in effect, while the previous board

observer right and potential board seat rights have been extinguished. The revised IRA will expire on the earlier of

November 30,

2026

, or when Rio Tinto's ownership falls below 5%.

"We are pleased to maintain Rio Tinto's presence on the TSC as it has been mutually beneficial to both Western and Rio Tinto,"

said

Sandeep Singh

, President and CEO. "Rio Tinto remains a supportive shareholder, and we value the expertise they bring to

bear on the project. It did make sense, however, to refine some of the previous rights, especially as we have taken steps to

enhance our own independent board of directors over time."

ABOUT WESTERN COPPER AND GOLD CORPORATION

Western Copper and Gold Corporation is developing the

Casino

Project,

Canada's

premier copper-gold mine in the

Yukon Territory

and one of the most economic greenfield copper-gold mining projects in the world.

The Company is committed to working collaboratively with our First Nations and local communities to progress the

Casino

Project,

using internationally recognized responsible mining technologies and practices.

For more information, visit

www.westerncopperandgold.com

.

On behalf of the board,

"Sandeep Singh"

Sandeep Singh

President and CEO

Western Copper and Gold Corporation

Cautionary Note Regarding Forward-Looking Statements

This news release includes certain "forward-looking information" and "forward-looking statements" (collectively "forward-looking

statements") within the meaning of applicable Canadian and

United States

securities legislation including the United States

Private Securities Litigation Reform Act of 1995. These forward-looking statements are made as of the date of this news release.

Forward-looking statements are frequently, but not always, identified by words such as "expects", "anticipates", "believes",

"plans", "projects", "intends", "estimates", "envisages", "potential", "possible", "strategy", "goals", "opportunities", "objectives", or

variations thereof or stating that certain actions, events or results "may", "could", "would", "might" or "will" be taken, occur or be

achieved, or the negative of any of these terms and similar expressions. Such forward-looking statements herein include

statements regarding the ongoing rights and obligations of Rio Tinto and the progression of the

Casino

Project.

Forward-looking statements involve known and unknown risks, uncertainties and other factors that may cause actual events to be

materially different from those expressed or implied by such statements. Such factors include but are not limited to the risk of

unforeseen challenges in advancing the

Casino

project, potential impacts on operational continuity, changes in general market

conditions that could affect the Company's performance; and other risks and uncertainties disclosed in the Company's annual

information form and Form 40-F for the most recently completed financial year and its other publicly filed disclosure documents.

Forward-looking statements are based on assumptions management believes to be reasonable, such assumptions and factors as

set out herein, and in the Company's annual information form and Form 40-F for the most recently completed financial year and

its other publicly filed disclosure document.

Although the Company has attempted to identify important factors that could cause actual results to differ materially from those

contained in forward-looking statements, other factors may cause results to be materially different from those anticipated,

described, estimated, assessed or intended. These forward-looking statements represent the Company's views as of the date of

this news release. There can be no assurance that any forward-looking statements will be accurate, as actual results and future

events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on

forward-looking statements. The Company does not intend to and does not assume any obligation to update forward-looking

statements other than as required by applicable law.

View original content to download multimedia:

https://www.prnewswire.com/news-releases/western-copper-and-gold-extends-technical-collaboration-with-rio-tinto-302482077.html

SOURCE

Western Copper and Gold Corporation

View original content to download multimedia:

http://www.newswire.ca/en/releases/archive/June2025/16/c6929.html

%SEDAR: 00023684E

For further information:

For more information, please contact: Cameron Magee, Director, Investor Relations & Corporate

Development, Western Copper and Gold Corporation, 437-219-5576 or [email protected]

CO: Western Copper and Gold Corporation

CNW 08:00e 16-JUN-25