St. Augustine Announces the Appointment of a New Board Member

ST. AUGUSTINE ANNOUNCES THE APPOINTMENT OF A NEW BOARD MEMBER

Davao City, Philippines – November 18, 2025, – St. Augustine Gold and Copper Limited (TSX:SAU)

(“St. Augustine” or the “Company”) is pleased to announce the appointment of Atty. Teodulo “Butch” San

Juan as Independent Director effective 17 November 2025.

Atty. San Juan is a seasoned legal practitioner with extensive experience in corporate governance, natural

resources law, regulatory compliance, and public policy. He has served in various senior roles in both

government and the private sector, bringing with him significant expertise relevant to the Company’s mining

and development activities.

The Board welcomes Atty. San Juan and is confident that his insights will contribute meaningfully to the

Company’s ongoing development initiatives and its commitment to responsible and transparent governance.

About St. Augustine

St. Augustine (SAU.T) is a TSX-listed mining company focused on the development of the Kingking Copper-

Gold Project. The Project is one of the largest undeveloped copper-gold deposits in the world and is listed

as a top three-priority mining project by the Philippine government.

CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

This announcement includes certain “forward-looking statements” within the meaning of Canadian securities

legislation. All statements, other than statements of historical fact included herein are forward looking

statements. Forward-looking statements involve various risks and uncertainties and are based on certain

factors and assumptions. While we consider these assumptions to be reasonable based on currently

available information, they may prove to be incorrect. There can be no assurance that such statements will

prove to be accurate, and actual results and future events could differ materially from those anticipated in

such statements. Forward-looking information is also subject to certain factors, including risks and

uncertainties, that could cause actual results to differ materially from the Company’s current expectations,

including changes in market conditions, governmental or regulatory developments and general economic

conditions. Other risks and uncertainties related to the Company are disclosed under the heading “Risk

Factors” in the Company’s Annual Information Form dated March 31, 2025 and filed with Canadian securities

regulatory authorities on the SEDAR+ website at www.sedarplus.ca. Forward-looking information contained

in this announcement is based on our current estimates, expectations and projections, which we believe are

reasonable as of the current date. You should not place undue importance on forward-looking information

and should not rely on this information as of any other date. While we may elect to, we are under no

obligation and do not undertake to update this information at any particular time except as required by

applicable securities law.

For more information:

Nicolaos Paraskevas

Investor and Public Relations Contact

ST. AUGUSTINE CORPORATE

HEADQUARTERS

+632 77288491 5F Pryce Tower. J.P. Laurel

E:[email protected] Davao City