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Tincorp Provides Supplemental and Amending Disclosure on Proposed Santa Barbara Acquisition

Corporate Updates

Tincorp Provides Supplemental and Amending Disclosure

on Proposed Santa Barbara Acquisition

Vancouver, British Columbia – April 24, 2026 – Tincorp Metals Inc. ("Tincorp" or the

"Company") (TSXV: TIN) announces today that it is providing additional disclosure to supplement

and amend the disclosure in its management information circular (the "Circular") for the annual

general and special meeting of shareholders of the Company (" Shareholders") to be held on

Tuesday, May 5, 2026 at 10:00 a.m. (Vancouver time) (the "Meeting") at which Shareholders will,

among annual meeting matters, consider a resolution to approve the acquisition (the "Proposed

Transaction") of the Santa Barbara Gold -Copper project in Ecuador (the " Santa Barbara

Project"), through the acquisition of Santa Barbara Metals Inc., a wholly -owned subsidiary of

Silvercorp Metals Inc. (" Silvercorp") (TSX/NYSE American: SVM) and its wholly -owned

subsidiary, Adventus Mining Corporation (" Adventus", and together with Silvercorp, the

"Vendors") pursuant to the share purchase agreement among the Company and the Vendors

dated February 24, 2026 (the "Share Purchase Agreement"), as more particularly described in

the Circular and the Share Purchase Agreement, which are posted under the Company's issuer

profile on the System for Electronic Document Analysis and Retrieval+ (" SEDAR+") at

www.sedarplus.ca. Capitalized terms not otherwise defined below have the meanings given to

them in the Circular.

Supplemental Disclosure

Background to the Transaction

The following disclosure amends and restates the "Background to the Transaction" section within

the Circular:

Silvercorp acquired the Santa Barbara Project in connection with the plan of arrangement

involving Silvercorp and Adventus which became effective on July 31, 2024. While Silvercorp

regarded the Santa Barbara Project as a prospective exploration stage asset , it was not

considered core to Silvercorp's principal operating strategy.

At the same time, the Company had disposed of its Skukum Gold project located in Yukon,

Canada on September 29, 2025 and had been evaluating opportunities to acquire a larger,

portfolio-defining gold, silver, or copper asset that could serve as a foundation for future

exploration and growth to supplement its portfolio of exploration properties , which included the

Porvenir polymetallic tin-zinc-silver project (the " Porvenir Project") situated in the Bolivian Tin

belt and the SF Tin project (the "SF Project") in the Potosi department of Bolivia.

During 2024 and 2025, Management conducted an internal review of potential acquisition targets

that could provide exposure to gold, silver or copper in established mineral belts and that could

be advanced through additional drilling and technical work. The Company engaged in discussions

with multiple publicly listed mining compan ies regarding the potential acquisition of project s in

south and central America, eastern Europe and Africa; however, most discussions did not

Tincorp Metals Inc.

1750 - 1066 West Hastings Street

Vancouver, BC, Canada V6E 3X1

Telephone: (604) 336-5919

www.tincorp.com

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progress beyond a preliminary stage. A site visit was conducted for one potential acquisition target

and a high-level proposal was made, which ultimately did not proceed past the proposal stage.

Further, in 2025 the Company considered participating in online auctions to bid for mining projects

in central Asia and entered into a number of non -disclosure agreements and conducted

exploratory visits to review projects in that region; however, the Company was unable to identify

a suitable project. Silvercorp, in its capacity as a controlling shareholder and through its

representation on the Company's board of directors (the "Board"), was aware of the Company's

review of potential acquisition targets. In January 2026, with Silvercorp’s announcement of the

acquisition of two gold projects in Kyrgyzstan, Silvercorp's management, as approved by the

independent directors of Silvercorp (with Dr. Rui Feng and Paul Simpson abstaining on the basis

that each is also a director of the Company) proposed to Victor Feng, Interi m Chief Executive

Officer of the Company, its non -core Santa Barbara Gold -Copper project in the Province of

Zamora-Chinchipe in Ecuador (the "Santa Barbara Project") as a potential acquisition candidate

for Tincorp due to its large historical gold -copper resource, geological setting, historical

exploration work and proximity to other significant mining projects in the region.

Initial discussions were conducted at the management level regarding a potential transaction in

respect of the Santa Barbara Project, which initial terms included a proposed purchase price

consisting of a combination of cash consideration of US$13.6 million payable in instalments over

four years, C$6 .0 million in Common Shares issued at closing and a 1.5% net smelter return

royalty on the Santa Barbara Project, together with a private placement by the Company to permit

the Company to pay the amounts expecte d to be due at closing, to commence drilling and

exploration on the Santa Barbara Project immediately following its acquisition and to satisfy the

Company's ongoing financial requirements, including transaction expenses.

In assessing the valuation and structure of the Proposed Transaction, including the mix of cash,

equity, royalty and security consideration, and their relative weights and respective amounts and

terms, as applicable, the Board determined that engaging a financial advisor or valuation expert

was neither necessary, given the rules and requirements of the TSXV and the public availability

of information regarding the Santa Barbara Project, including the Technical Report, and

comparable transactions, nor desirable, given the Company's financial position (including its cash

balance) at the time. The Board considered various valuation approaches and implied acquisition

metrics, including the consideration paid in comparable transactions relative to the historical

mineral resource estimate, as valuation reference points in determining the fair value of the Santa

Barbara Project and the appropriateness of the consideration to be paid to Silvercorp.

Additionally, the proposed valuation and structure of the Proposed Transaction was discussed

with Raymond James in connection with the Company's negotiation of the terms of the Concurrent

Private Placement in support of the Proposed Transaction. Based on these analyses, the Board

determined that the consideration payable under the Proposed Transaction is fair and in the best

interests of the Company.

Upon determining that the acquisition of the Santa Barbara Project could be of strategic interest

to the Company, in late January 2026, a proposed transaction which included staged cash

payments of US$13.6 million, C$6.0 million of Common Shares upon closing, and a 1.5% royalty

with the exact structure to be determined was preliminarily agreed to by the parties. On February

2, 2026, the proposed transaction was referred to the Board, at which time Dr. Rui Feng recused

himself from deliberations and decision-making with respect to the Proposed Transaction on the

basis that he is a director and the Chief Executive Officer and Chairman of Silvercorp, formally

declaring his interest in the Proposed Transaction on February 24, 2026 and abstaining from the

written Board resolution of that date approving the same. Given the related party nature of the

Proposed Transaction, the Board established a process to evaluate the Proposed Transaction

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with a view to ensuring that the Proposed Transaction would be fair to the Company and its

Shareholders, which included excluding Dr. Rui Feng from deliberations regarding the Proposed

Transaction. The final terms for the Proposed Transaction were settled in mid -February 2026,

which included staged cash payments of US$13.5 million, C$6.0 million of Common Shares upon

closing, and a 1.5% net smelter return royalty on the Santa Barbara Project of which two-thirds

(1%) could be repurchased by Tincorp for US$10.0 million. The negotiation of the terms of the

Proposed Transa ction and the Share Purchase Agreement were held between Lon Shaver,

President of Silvercorp, and Victor Feng, Interim Chief Executive Officer of the Company, on an

arm's length basis, and through advisors, with the objective of agreeing on terms that reflected

the exploration stage nature of the Santa Barbara Project while preserving upside potential for

the Company and its Shareholders. The parties ultimately agreed on a transaction structure that

included equity consideration and contingent elements, aligning the interests of both parties while

mitigating upfront financial risk to the Company.

No special committee of the Board was established in connection with the Proposed Transaction

or the Concurrent Private Placement, as all disinterested members of the Board were engaged in

respect thereof, and no materially contrary view was expressed and no abstention, other than Dr.

Rui Feng's abstention from the votes on the Proposed Transaction and the Concurrent Private

Placement, and each of Mr. Lorne Waldman's and Mr. Alex Zhang's abstentions from the vote on

the Concurrent Private Placement , was mad e by any member of the Board in relation thereto.

The Proposed Transaction and Concurrent Private Placement were strongly supported by the

independent members of the Board.

The disinterested members of the Board met informally on a number of occasions between

February 2, 2026 and February 24, 2026 to consider the Proposed Transaction and the

Concurrent Private Placement and certain related matters. Some of the key dates are as follows:

• On February 2, 2026, a summary of the Proposed Transaction was sent to the disinterested

members of the Board.

• Between February 4, 2026 and February 18, 2026, disinterested members of the Board

corresponded via phone and email to confirm details of the Proposed Transaction.

• On February 24, 2026, a written resolution of the Board approving the Proposed Transaction

was signed, with each director having a material interest in the Proposed T ransaction

declaring such interest and abstaining from voting on the resolutions in respect of which he

had a material interest.

Following its review of the Proposed Transaction and the Concurrent Private Placement, and after

considering the advice of its advisors, the disinterested members of the Board concluded that the

acquisition of the Santa Barbara Project and the completion of the Concurrent Private Placement

were in the best interests of the Company and its Shareholders. The Board approved the

execution of the Share Purchase Agreement , the Proposed Transaction and the Concurrent

Private Placement, subject to receipt of requir ed regulatory approvals and, where applicable,

disinterested Shareholder approval.

Reasons and Benefits for the Transaction

The following disclosure amends and restates the " Reasons and Benefits for the Transaction "

section within the Circular:

In evaluating and approving the Proposed Transaction and in making its determinations and

recommendations, the Board gave careful consideration to the current and expected future

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position of the business of the Company and the terms of the Share Purchase Agreement. The

Board considered a number of factors while assessing the Proposed Transaction including,

among others, the following:

• Alternative Options. The Board considered a number of alternatives to maximize the value

of the Common Shares, including review of multiple exploration stage gold, silver, and copper

projects across Latin America, Central Asia, Africa, and Europe since 2024 . The Proposed

Transaction represents, in the Board's view, the best alternative among the opportunities

available to improve the ability of the Company to increase Shareholder value.

• Exposure to Large Gold-Copper Asset. The Proposed Transaction gives the Company and

its Shareholders exposure to both gold and copper in Ecuador, which the Board believes is

one of the world's most prolific and emerging mining jurisdictions. This commodity mix aligns

with the Company's strategy of building scale around gold and copper‑focused assets rather

than single‑metal projects.

• Near Term Resource Growth and Upside Potential. The Santa Barbara Project already has

a historical mineral resource estimate from prior operators, which the Company expects to be

able to upgrade and expand through additional drilling and the Technical Report.

• Favourable Location and Infrastructure . The Santa Barbara Project is located in the

Zamora-Chinchipe Province, close to several major producing or advanced projects (including

Lundin Gold Inc.'s Fruta del Norte project, Solaris Resources Inc.'s Warintza project and

Silvercorp's Condor project). The Santa Barbara Project also benefits from road access and

an existing valid environmental permit covering multiple concessions, which the Board

believes will reduce early-stage development risk.

• Stronger Financial Position. Assuming the satisfaction of the Escrow Release Conditions

and the release of the Escrowed Proceeds to the Company, the Company is expected to have

a stronger financial position and greater resources than it currently has.

• Fairness of the Conditions. The Share Purchase Agreement provides for certain conditions

to completion of the Proposed Transaction, which conditions are not unduly onerous or

outside market practice and could reasonably be expected to be satisfied in the judgment of

the Board but are sufficient to protect the interests of Shareholders to ensure the Proposed

Transaction is completed on terms that are fair and reasonable.

• Shareholder Approval . The Acquisition Resolution and the Financing Resolution,

respectively, must be approved by at least a simple majority of the votes cast on such

resolution by Shareholders present in person or represented by proxy and entitled to vote at

the Meeting, excluding the Excluded Shares for the purposes of MI 61-101 and Policy 5.3 of

the TSXV.

The foregoing summary of the information and factors considered by the Board in reaching their

determinations is not, and is not intended to be, exhaustive. In view of the wide variety of factors

considered in connection with their evaluation of the Proposed Transaction and the complexity of

these matters, the Board did not find it practicable to, and therefore did not, quantify or otherwise

attempt to assign any relative weights to these factors. In addition, individual members of the

Board may have given different weights to different factors.

The Share Purchase Agreement – Consideration

The "The Share Purchase Agreement – Consideration" section within the Circular is amended by

inserting the following immediately after the second paragraph of that section:

Assuming the maximum number of Consideration Shares are issued to the Vendors under the

Share Purchase Agreement and the Vendors elect to accept US$5,500,000 in Common Shares

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on the third -year anniversary of Closing, and taking into consideration the number of Common

Shares issuable upon conversion of the Subscription Receipts, Silvercorp, directly or indirectly,

will own or control 54,587,199 Common Shares (approximately 36.7%) on a non -diluted basis

assuming the Company has 148,800,368 Common Shares issued and outstanding following

completion of the Proposed Transaction and Concurrent Private Placement. The price per

Consideration Share was determined based on the arm's length negotiated price of the

Subscription Receipts to be issued under the Concurrent Private Placement.

The " The Share Purchase Agreement – Consideration" section within the Circular is further

amended by inserting the following immediately after the last sentence of that section:

The security structure reflected in the Security Agreement is consistent with the approach

previously used by the Vendors in connection with dispositions of its other projects in Ecuador

and market practice for arrangements of this nature.

The Concurrent Private Placement

The "The Concurrent Private Placement" section within the Circular is amended by inserting the

following immediately after the first sentence of that section:

Background to the Concurrent Private Placement

In connection with the Proposed Transaction, the Company had been evaluating opportunities to

obtain financing. In 2026, Management conducted an internal review of potential financing

structures and partners. Management held discussions with several parties regarding a potential

financing and ultimately identified Raymond James as a potential lead agent and bookrunner for

a private placement and determined that an offering amount of up to approximately C$17.5 million

was appropriate given the amount of cash consideration expected to be payable pursuant to the

Share Purchase Agreement at closing, the anticipated exploration program for the Santa Barbara

Project and the Company's ongoing financial requirements, including transaction expenses. The

Board considered a number of financing alternatives to a brokered private placement, including a

financing under the Listed Issuer Financing Exemption and a non-brokered private placement of

units. The Concurrent Private Placement represents in Management's view the best alternative

among the opportunities available to improve the ability of the Company to obtain financing in

connection with the Proposed Transaction.

Initial discussions with Raymond James were conducted at the management level in early

February 2026 regarding a potential brokered private placement subscription receipt financing

concurrently with the ongoing negotiations in respect of the Proposed Transaction. On February

23, 2026, following discussions between Management and Raymond James reflecting market

conditions, a proposed financing structure consisting of a C$10.0 million brokered subscription

receipt offering and a concurrent non -brokered C$6.0 million subscription receipt offering (plus

the option to increase the offering size of the brokered subscription receipt offering by up to 15%)

was referred to the Board . The financing terms presented to the Board also included a cash

commission payable to the agents of 6% of the gross proceeds of the brokered offering and the

issuance to the agents of such number of compensation warrants as is equal to 6% of the number

of subscription receipts sold pursuant to the brokered offering, which commission struc ture is

consistent with market terms for an offering of this nature . The issue price of the Subscription

Receipts, the terms of the securities underlying the Subscription Receipts, the Escrow Release

Conditions and related matters were negotiated with Raymond James by Management on behalf

of the Company, on an arm's length basis . The issue price for the Subscription Receipts was

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determined by the Company and Raymond James to be an approximately 7% discount to the 10-

day volume-weighted average price of the Common Shares on February 20, 2026.

The participation by insiders in the Concurrent Private Placement was not agreed to until after the

terms of the Concurrent Private Placement were set by Management and Raymond James

reflecting market conditions and expectations.

The following directors and officers of the Company acquired Subscription Receipts under the

Concurrent Private Placement : Rui Feng acquired 5,000,000 Subscription Receipts, Lorne

Waldman acquired 75,000 Subscription Receipts, Alex Zhang acquired 750,000 Subscription

Receipts, Victor Feng acquired 2,000,000 Subscription Receipts and Jonathan Hoyles acquired

500,000 Subscription Receipts. Additionally, the following directors and officers of Silvercorp

acquired Subscription Receipts under the Concurrent Priv ate Placement: Jing (Winnie) Wang,

CFO of Silvercorp, acquired 250,000 Subscription Receipts, Paul Simpson acquired 1,225,000

Subscription Receipts and Lon Shaver acquired 625,000 Subscription Receipts. In aggregate,

related parties of the Company acquired 10,425,000 Subscription Receipts, being approximately

23.8% of the total of 43,750,000 Subscription Receipts issued.

The material terms of the Concurrent Private Placement are summarized below. D isinterested

members of the Board satisfied themselves that the terms of the Concurrent Private Placement

were fair and reasonable on the basis that the issue price, agent's commission, and compensation

warrant terms were consistent with market practice for financings of this nature, and the gross

proceeds were sized appropriately to fund the cash consideration payable under the Share

Purchase Agreemen t, initial exploration progra m for the Santa Barbara Project , general and

administrative expenses, Ecuador operations, and the Proposed Transaction-related expenses.

Corrective Disclosure

The Transaction under MI 61-101 – Minority Approval Requirement

The following disclosure amends the "The Transaction under MI 61 -101 – Minority Approval

Requirement", "The Transaction under TSXV Policy 5.3" and "The Concurrent Private Placement

– The Concurrent Private Placement Under MI 61-101 – Minority Approval Requirement" sections

within the Circular on the basis that the Common Shares held by Yikang Liu, a director of

Silvercorp, were not previously disclosed in the Circular as a result of an oversight:

References to the exclusion of "the votes attached to an aggregate of 30,814,651 Common

Shares, representing approximately 43.28% of the total issued and outstanding Common Shares

as of the Record Date" for the purposes of obtaining approval of the Proposed Transaction and

the Concurrent Private Placement from the Minority Shareholders in accordance with MI 61-101

and of the Concurrent Private Placement from the Disinterested Shareholders in accordance with

TSXV Policy 5.3, as applicable, are replaced with "the votes attached to an aggregate of

30,998,212 Common Shares, representing approximately 43.53% of the total issued and

outstanding Common Shares as of the Record Date " to account for the votes attached to the

12,680 Common Shares held by Yikang Liu, a director of Silvercorp, which represent 0.02% of

the 71,201,868 Common Shares outstanding as of the date of the Circular, and each of the tables

in the Circular setting out the name of each Excluded Shareholder, the number of Excluded

Common Shares held by such person and the Percentage on a Non -Diluted Basis of such

person's shareholdings relative to the total number of Common Shares outstanding as of the date

of the Circular are replaced with the following table:

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Excluded Shareholder Excluded Common Shares Percentage on a Non- Diluted

Basis

Silvercorp Metals Inc.(2) 20,738,699 29.1%

Rui Feng, Director of Tincorp 6,729,593 9.5%

Lorne Waldman, Director (Chair) of

Tincorp 170,881 0.2%

Yongming (Alex) Zhang, Director of

Tincorp 250,000 0.4%

Hernan Uribe-Zeballos, Director of

Tincorp 100,000 0.1%

Bhakti Pavani, Director of Tincorp 4,000 0.01%

Victor Feng, Interim CEO of Tincorp 2,210,000 3.1%

Jonathan Hoyles, General Counsel of

Tincorp 200,000 0.3%

Paul Simpson, Director of Silvercorp 385,734 0.5%

Marina Katusa, Director of Silvercorp 56,000 0.1%

Lon Shaver, President of Silvercorp 140,625 0.2%

Yikang Liu, Director of Silvercorp 12,680 0.02%

Total 30,998,212 43.53%

Notes:

(1) Based on 71,201,868 Common Shares outstanding as of the date of this Circular.

(2) Held by Silvercorp directly and through Fortune Gold Mining Limited and its other subsidiaries.

Financing Resolution

The Financing Resolution set out in Schedule A to the Circular is amended by replacing the

reference to "28,750,000" therein with "43,750,000" on the basis that the previous text erroneously

referenced 28,750,000 Subscription Receipts rather than 43,750,000 Subscription Receipts being

issued in connection with the Concurrent Private Placement.

The Company confirms that the form of proxy and VIF received by Shareholders includes

reference to the correct number of Subscription Receipts.

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No Other Changes

The Company confirms that, other than the supplemental information included herein, there have

been no changes that, if disclosed, would reasonably be expected to affect the decision of a

Shareholder to vote for or against the Proposed Transaction or the Concurrent Private Placement.

About Tincorp

Tincorp Metals Inc. is a mineral exploration company which has entered into a definitive

agreement with Silvercorp to acquire Santa Barbara Metals Inc. which holds a 100% interest in

the Santa Barbara Gold -Copper Project in the Zamora Copper -Gold Belt of s outheastern

Ecuador. The Company also owns 100% of the Porvenir Project and has signed an agreement to

acquire a 100% interest in the nearby SF Project, both located 70 km southeast of Oruro, Bolivia.

On Behalf of Tincorp Metals Inc.:

(signed) "Victor Feng"

Victor Feng, Interim CEO

For further information, please contact:

Victor Feng, Interim CEO

Phone: +1 (604) 336-5919

Email: [email protected]

www.tincorp.com

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined

in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy

of this news release.

Cautionary Note Regarding Forward-Looking Statements

This news release contains forward -looking statements and forward -looking information

(collectively, "forward-looking statements") within the meaning of applicable Canadian and U.S.

securities legislation . All statements, other than statements of historical fact included in this

release, including, without limitation, statements regarding the Meeting, the Proposed Transaction

and the Concurrent Private Placement, are forward-looking statements.

Forward-looking statements are often, but not always, identified by words or phrases such as

"expects", "is expected ", "anticipates", "believes", "plans", "projects", "estimates", "assumes",

"intends", "strategies", "targets", "goals", "forecasts", "objectives", "budgets", "schedules",

"potential" or variations thereof or stating that certain actions, events or results "may", "could",

"would", "might" or "will" be taken, occur or be achieved, or the negative of any of these terms

and similar expressions. Forward -looking statements are based on the opinions, assumptions,

factors and estimates of management considered reasonable at the date the statements are

made. The opinions, assumptions, factors and estimates which may prove to be incorrect, include,

but are not limited to: that the Company will b e able to obtain and maintain governmental

approvals, permits and licenses in connection with its current and planned operations,

development and exploration activities, including at the Santa Barbara Project; that the Company

will receive Shareholder and TSXV approval for the Proposed Transaction and the Concurrent

Private Placement in a timely manner; that the conditions to the Proposed Transaction will be