Erdene Provides Notice of Release of Fourth Quarter and Full Year 2025 Results and Conference Call

TSX: ERD | MSE: ERDN | OTCQX: ERDCF

www.erdene.com 1 [email protected]

ERDENE PROVIDES NOTICE OF RELEASE OF FOURTH QUARTER

AND FULL YEAR 2025 RESULTS AND CONFERENCE CALL

Press Release

Halifax, Nova Scotia

2026.03.20

Erdene Resource Development Corp. (TSX:ERD; MSE:ERDN ; OTCQX: ERDCF)

("Erdene" or the "Company") announces that it will release its fourth quarter and full

year 2025 financial results on March 24, 2026, after market hours.

Conference Call & Webcast

Management will host a conference call and webcast to discuss the Company’s operating

and financial results, and current business initiatives on Wednesday, March 25, 2025,

at 9:00 AM Eastern Time. The webcast will be accessible at the following link: HERE

A replay of the webcast will be available at the same link for one year after the event. The

dial-in numbers for the conference call are as follows:

• North America (toll free): 1-800-717-1738

• Overseas or local (Toronto): 1-289-514-5100

About Erdene

Erdene Resource Development Corp. is a Canada-based resource company producing

gold at the high-grade, low-cost Bayan Khundii Gold Mine in underexplored and highly

prospective Mongolia. The Company has interests in a portfolio of precious and base

metal projects near the Bayan Khundii Gold Mine in the Khundii Minerals District, which

provides a robust organic growth pipeline. Erdene Resource Development Corp. is listed

on the Toronto (“ERD”) and the Mongolian stock (“ERDN”) exchanges and OTCQX

Market (“ERDCF”). Further information is available at www.erdene.com. Important

information may be disseminated exclusively via the website; investors should consult the

site to access this information.

NO REGULATORY AUTHORITY HAS APPROVED OR DISAPPROVED THE

CONTENTS OF THIS RELEASE

Erdene Contact Information

Peter C. Akerley, President and CEO, or

Robert Jenkins, CFO

Phone: (902) 423-6419

Email: [email protected]

Twitter: https://twitter.com/ErdeneRes

Facebook: https://www.facebook.com/ErdeneResource

LinkedIn: https://www.linkedin.com/company/erdene-resource-development-corp-/