Discovery Silver Corp. — Proxy Solicitation & Information Statement 2023

Apr 12, 2023

Notification of Availability of Investor Materials

Dear Investor:

Please find attached your form of proxy/voting instruction form for:

Discovery Silver Corp. Annual General Meeting May 12, 2023, 11:00am EDT

In Person at the offices of the Corporation’s legal counsel, Cassels Brock and Blackwell LLP, located at Scotia Plaza, Suite 2100, 40 King St W, Toronto, ON M5H 3C2

The following matters will be reviewed and voted upon at this meeting:

1. to receive and consider the audited consolidated financial statements of the Company as at and for the years ended December 31, 2022 and 2021, together with the report of the auditors thereon;

2. to appoint PricewaterhouseCoopers LLP, Chartered Professional Accountants as auditor and authorize the board of directors to fix their remuneration;

3. to elect the directors for the ensuing year;

4. to consider and, if deemed appropriate, pass, with or without variation, a resolution to amend the company’s articles;

5. to consider and, if deemed appropriate, pass, with or without variation, a resolution to amend the company’s stock option plan, restricted share unit plan, and deferred share unit plan;

6. to consider and, if deemed appropriate, pass, with or without variation, a resolution for the company to adopt an advance notice policy; and

7. to transact such further or other business as may properly come before the Meeting or any postponement(s) or adjournment(s) thereof.

Under changes to Canadian security rules in 2013, Canadian companies are no longer required to distribute physical copies of certain annual meeting related materials such as proxy circulars and annual financial statements to their investors. Instead, they may post electronic versions of such material on a website for investor review. This process, known as “notice-and-access”, directly benefits the company through a substantial reduction in both postage and material costs and helps the environment through a decrease in paper documents that are ultimately discarded.

Electronic copies of investor materials related to this meeting may therefore be found at and downloaded from www.meetingdocuments.com/TSXT/DSV. We have added features that will make searching for relevant sections and specific items a much easier process than finding this information in the paper versions of these documents.

You have several options to vote your proxy:

• Cast your vote on the Internet at www.meeting-vote.com

• Fax your signed proxy to 1-416-595-9593

• By mail to Proxy Department, P.O. Box 721, Agincourt, Ontario, M1S 0A1

• • Scan and send your signed proxy to proxyvote@tmx.com.

However you choose to vote, we must receive your vote by May 10, 2023 at 11:00am EDT. We also strongly encourage you to first review the matters under discussion for the meeting as described in our proxy circular at www.meetingdocuments.com/TSXT/DSV.

Should you wish to receive paper copies of investor materials related to this meeting, or have any questions, please

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contact us at 1-888-489-5760 or shareholderinquiries@tmx.com prior to April 26, 2023 and we will send them within three business days, giving you sufficient time to vote your proxy. Following the meeting the documents will remain available at the website listed above for a period of one year.

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