Exhibit 5.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in this Registration Statement on Form F-10 of our reports dated May 22, 2025 relating to the consolidated financial statements of Silvercorp Metals Inc. (the “Company”) and the effectiveness of the Company’s internal control over financial reporting appearing in the Annual Report on Form 40-F of the Company for the year ended March 31, 2025.

/s/ Deloitte LLP

Chartered Professional Accountants

Vancouver, Canada

September 4, 2025