News Releases

VANCOUVER, B.C. Western Copper and Gold Corporation (“Western” or the “Company”) (TSX: WRN; NYSE American: WRN) through its wholly-owned subsidiary, Casino Mining Corporation (“Casino”) has been informed by the Executive Committee of the Yukon Environmental and Socio-Economic Assessment Board (“YESAB”) that it is necessary to revise the Environmental and Socio-Economic Statement Guidelines (the “Guidelines”), which were issued June 20, 2016 following the Casino Copper-Gold Project’s (the “Project”) referral to a Panel of the Board (the “Panel Review”).

The need to revise the Guidelines is the result of discussions between the Company and YESAB on how to address changes in assessment methods, environmental best practices, and enhancements to the Project that have occurred since the issuance of the original Guidelines in 2016. The revision process will commence immediately and is not expected to have a material impact on overall permitting timelines.

The Guidelines are an important component of the Panel Review process and outline the structure and scope of the Environmental and Socio-Economic Statement Casino will submit to describe the potential effects of the Project, showing stakeholders how the Project can be developed in a socially and environmentally responsible way.

Revising the Guidelines ensures that the Panel Review process reflects leading industry best practices. The revision process includes a public comment period that provides Casino with an opportunity to engage the broader public in addition to Federal, Territorial and First Nation governments.

“The Company is committed to ensuring that review of the Casino Project occurs in a robust manner using the most up to date methodologies in environmental assessment and this review will achieve that without material impact to overall timelines.” stated Paul West-Sells, President and Chief Executive Officer. “We remain confident that the Casino Project is a great asset for Yukon that will provide benefits to Yukon communities and First Nations for generations to come.”

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,

“Paul West-Sells”

Dr. Paul West-Sells

President and CEO

Western Copper and Gold Corporation

For more information, please contact:

Sandy Noyes

Director, Investor Relations

604.638.2520 or snoyes@westerncopperandgold.com

Cautionary Disclaimer Regarding Forward-Looking Statements and Information

This news release contains certain forward-looking statements concerning anticipated developments in Western’s operations in future periods. Statements that are not historical fact are “forward-looking statements” as that term is defined in the United States Private Securities Litigation Reform Act of 1995 and “forward-looking information” as that term is defined in National Instrument 51-102 (“NI 51-102”) of the Canadian Securities Administrators (collectively, “forward-looking statements”). Certain forward-looking information should also be considered future-oriented financial information (“FOFI”) as that term is defined in NI 51-102. The purpose of disclosing FOFI is to provide a general overview of management’s expectations regarding the anticipated results of operations and capital expenditures and readers are cautioned that FOFI may not be appropriate for other purposes. Forward-looking statements are frequently, but not always, identified by words such as “expects”, “anticipates”, “believes”, “intends”, “estimates”, “potential”, “possible” and similar expressions, or statements that events, conditions or results “will”, “may”, “could” or “should” occur or be achieved. These forward-looking statements may include, but are not limited to, statements regarding: mineral resource and reserve estimation; mine plan and operations; internal rate of return; sensitivities; net present value; potential recoveries; design parameters; economic potential; processing mineralized material; the potential of robust economics at Casino; advancing the Project through additional engineering and towards the next step in permitting and submission of an environmental and socio-economic effects statement; key changes to the TMF design; increases to the gold recovery in the heap leach; potential economic returns from the Project; estimated initial capital investment costs; estimated operating costs; estimated mining costs; development of the airstrip and all weather access road; anticipated concentrate handling service charges; developing and operating the Project in a safe, ethical and socially-responsible manner; plans for further development and securing the required permits and licenses for further studies to consider operation; market price of precious and base metals; or other statements that are not statement of fact. The material factors or assumptions used to develop forward-looking statements include prevailing and projected market prices and foreign exchange rates, exploration estimates and results, continued availability of capital and financing, construction and operations, the Company not experiencing unforeseen delays, unexpected geological or other effects, equipment failures, permitting delays, and general economic, market or business conditions and as more specifically disclosed throughout this document, and in the AIF and Form 40-F.

Forward-looking statements are statements about the future and are inherently uncertain, and actual results, performance or achievements of Western and its subsidiaries may differ materially from any future results, performance or achievements expressed or implied by the forward-looking statements due to a variety of risks, uncertainties and other factors. Such risks and other factors include, among others, risks involved in fluctuations in gold, copper and other commodity prices and currency exchange rates; uncertainties relating to interpretation of drill results and the geology, continuity and grade of mineral deposits; uncertainty of estimates of capital and operating costs, recovery rates, production estimates and estimated economic return; risks related to joint venture operations; risks related to cooperation of government agencies and First Nations in the development of the property and the issuance of required permits; risks related to the need to obtain additional financing to develop the property and uncertainty as to the availability and terms of future financing; the possibility of delay in construction projects and uncertainty of meeting anticipated program milestones; uncertainty as to timely availability of permits and other governmental approvals; and other risks and uncertainties disclosed in Western’s AIF and Form 40-F, and other information released by Western and filed with the applicable regulatory agencies.

Western’s forward-looking statements are based on the beliefs, expectations and opinions of management on the date the statements are made, and Western does not assume, and expressly disclaims, any intention or obligation to update or revise any forward-looking statements whether as a result of new information, future events or otherwise, except as otherwise required by applicable securities legislation. For the reasons set forth above, investors should not place undue reliance on forward-looking statements.