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Silver BULL Grants an Option Entitling SOUTH32 to Form a 70/30 Joint Venture IN the Sierra Mojada Project FOR an Aggregate Investment of US$100 Million

Mergers & Acquisitions Share Capital & Compensation Partnerships & JV

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June 4, 2018 OTCQB: SVBL, TSX: SVB

SILVER BULL GRANTS AN OPTION ENTITLING SOUTH32 TO FORM A 70/30 JOINT

VENTURE IN THE SIERRA MOJADA PROJECT FOR AN AGGREGATE INVESTMENT

OF US$100 MILLION

Vancouver, British Columbia – Silver Bull Resources, Inc. (TSX: SVB, OTCQB: SVBL) (“Silver Bull”)

is pleased to announce that it has signed an agreement with a wholly owned subsidiary of

South32 Limited ( ASX/JSE/LSE: S32) (“South32”) whereby Silver Bull has granted South32 an

option to form a 70/30 joint venture with respect to Silver Bull’s Sierra Mojada project

(“Project”). To maintain the option in good standing , South32 must contribute minimum

exploration funding of US$10 million (“Initial Funding”) during a 4 year option period with

minimum aggregate exploration funding of US$3 million, US$6 million and US$8 million to be

made by the end of years 1, 2 and 3 of the option period respectively. South32 may exercise its

option to subscribe for 70% of the shares of Minera Metalin S.A. De C.V. (“Metalin”), the wholly

owned subsidiary of Silver Bull which holds the claims in respect of the Project, by contributing

$US100 million to Metalin for Project funding, less the amount of the Initial Funding contributed

by South32 during the option period.

Tim Barry, President, CEO and director of Silver Bull states, “This validates the significant success

we have had in identifying high grade sulphide zones at the Sierra Mojada project. South32 is a

globally diversified metals and mining co mpany that will bring funding and significant technical

expertise to the project. We believe this agreement recognizes the significant potential at the

Sierra Mojada project.”

Highlights of the Agreement

Silver Bull and South32 have entered into an agreement whereby Silver Bull has granted South32

an option to subscribe for a 70% interest in Si lver Bull’s Mexican subsidiary Metalin for a

subscription price of US$100 million less the Initial Funding amount (the “Subscription Amount”).

The Subscription Amount will be used to fund expenditure on exploration and development costs

on the Project. Once the Subscription Amount has been spent on the Project the parties will each

fund their pro rata portion of all future Project funding. To maintain the option in good standing

South32 must spend a minimum of $US10 million over the next four years. Should South32 elect

not to continue with the Project during the four year option period, the Project will remain 100%

owned by Silver Bull.

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The first year’s exploration program, planned to start as soon as possible, will involve a regional

airborne electromagnetic survey, followed by a targeted drilling program on the Project. Initial

targets will include extensions of the sulphide zones recently identifie d by Silver Bull and the

Palomas Negros area. The exploration program will be initially managed by Silver Bull.

Option Funding Phase

To keep the option in good standing South32 will contribute a minimum of US$10 million by way

of four annual tranches during the four year option period to fund exploration at the Sierra

Mojada project. Provided that all the exploration data and information has been made available

60 days prior to each anniversary of the option agreement, South32 shall decide 30 days prior to

the relevant anniversary whether or not to fund a further tranche.

If South32 exercises the option, the Subscription Amount shall be paid to Metalin in one tranche

within sixty days. Should South32 elect to withdraw the option will lapse and South32 will have

no further interest in or claim against either the Project or Metalin.

Post Option Exercise

Once the Subscription Amount has been expended by Metalin, the parties will contribute funding

pro rata (70/30), as contemplated by the shareholders’ agreement which will govern the period

subsequent to the option exercise (the “Shareholders ’ Agreement”). The Shareholders ’

Agreement provides for a Chief Executive Officer to be appointed by South32 and a board with a

maximum of seven members, with each of South32 and Silver Bull appointing a proportionate

number of directors.

Other Terms of the Option Agreement

In the option agreement, the parties provide representations, warranties and indemnities

customary for a transaction of this nature. Silver Bull and Metalin agree to certain restrictive and

affirmative covenants during the option period, including to maintain its interest in the Project,

not to transfer or incur encumbrances on the Project or the shares of Metalin, other than as

permitted by the agreement, and to conduct business in accordance with agreed upon budgets.

Metalin will be the initial operator of the Project and provide annual reports and budgets to a

technical committee formed by Silver Bull a nd South 32 for the purpose of reviewing and

approving each year’s program.

Upon exercise of the option by South32 the parties will enter into a shareholders’ agreement

which will govern the affairs of Metalin. Metalin’s board shall consist of seven mem bers, with

each shareholder having an equity interest of 15% or greater in Metalin nominating a pro rata

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number of directors. The shareholders’ agreement sets out certain matters which require super

majority approvals at the board and shareholder level, as well as certain transfer restrictions and

rights of first refusal with respect to the parties’ interest in Metalin.

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About the Sierra Mojada deposit : Sierra Mojada is an open pittable oxide deposit, as disclosed

in the NI43 -101 "Technical Report on the Resources of the Sierra Mojada Project Coahuila,

Mexico" dated June 8, 2015, with a NI43 -101 compliant measured and indicated "global"

resource of 58.7 m illion tonnes grading 3.6% zinc and 50g/t silver at a $13.50 NSR cutoff giving

4.670 billion pounds of zinc and 90.8 million ounces of silver. Included within the "global"

resource is a measured and indicated "high grade zinc zone" within the Lerchs -Grossman (LG)

Optimized Pit of 10.03 million tonnes with an average grade of 11% zinc at a 6% cutoff, giving

2.426 billion pounds of zinc, and a measured and indicated "high grade silver zone" of 19 million

tonnes with an average grade of 102.5g/t silver at a 50 g/t cutoff giving 62.6 million ounces of

silver. Mineralization remains open in the east, west, and northerly directions. Approximately

60% of the current 3.2 kilometer mineralized body is at or near surface before dipping at around

6 degrees to the east.

About Silver Bull: Silver Bull is a mineral exploration company whose shares are listed on the

Toronto Stock Exchange and trade on the OTCQB in the United States, and is based out of

Vancouver, Canada. The "Sierra Mojada" project is located 150 kilometers north of the city of

Torreon in Coahuila, Mexico, and is highly prospective for silver and zinc.

About South32: South32 is a globally diversified metals and mining company with high-quality

and well maintained operations which mine and produce silver, zinc, lead, nickel, bauxite,

alumina, aluminum, energy and metallurgical coal and manganese in Australia, Southern Africa

and South America. More information is available at www.south32.net.

The technical information of this news release has been reviewed and approved by Tim Barry, a

Chartered Professional Geologist (CPAusIMM), and a qualified person for the purposes of

National Instrument 43-101.

On behalf of the Board of Directors

"Tim Barry"

Tim Barry, CPAusIMM

Chief Executive Officer, President and Director

INVESTOR RELATIONS:

+1 604 687 5800

[email protected]

Cautionary Note to U.S. Investors concerning estimates of Measured, Indicated, and Inferred Resources: This

press release uses the terms "measured resources", "indicated resources", and "inferred resources" which are

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defined in, and required to be disclosed by, NI 43-101. We advise U.S. investors that these terms are not recognized

by the United States Securities and Exchange Commission (the "SEC"). The estimation of measured, indicated and

inferred resources involves greater uncertainty as to their existence and economic feasibility than the estimation of

proven and probable reserves. U.S. investors are cautioned not to assume that measured and indicated mineral

resources will be converted into reserves. The estimation of inferred resources involves far greater uncertainty as to

their existence and economic viability than the estimation of other categories of resources. U.S. investors are

cautioned not to assume that estimates of inferred mineral resources exist, are economically minable, or will be

upgraded into measured or indicated mineral resources. Under Canadian securities laws, estimates of inferred

mineral resources may not form the basis of feasibility or other economic studies.

Disclosure of "contained ounces" in a resource is permitted disclosure under Canadian regulations, however the SEC

normally only permits issuers to report mineralization that does not constitute "reserves" by SEC standards as in

place tonnage and grade without reference to unit measures. Accordingly, the information contained in this press

release may not be comparable to similar information made public by U.S. companies that are not subject NI 43-

101.

Cautionary note regarding forward looking statements: This news release contains forward-looking statements

regarding future events and Silver Bull's future results that are subject to the safe harbors created under the U.S.

Private Securities Litigation Reform Act of 1995, the Securities Act of 1933, as amended (the "Securities Act"), and

the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and applicable Canadian securities laws.

Forward-looking statements include, among others, statements regarding the potential of the Sierra Mojada

project and ability of agreement to provide capital required to further explore the mineral potential of the property,

South32’s ability to fund the Project and the exercise of the option by South 32 and entry into the shareholders’

agreement. These statements are based on current expectations, estimates, forecasts, and projections about Silver

Bull's exploration projects, the industry in which Silver Bull operates and the beliefs a nd assumptions of Silver Bull's

management. Words such as "expects," "anticipates," "targets," "goals," "projects," "intends," "plans," "believes,"

"seeks," "estimates," "continues," "may," variations of such words, and similar expressions and references t o future

periods, are intended to identify such forward-looking statements. Forward-looking statements are subject to a

number of assumptions, risks and uncertainties, many of which are beyond our control, including such factors as

the results of exploration activities and whether the results continue to support continued exploration activities,

unexpected variations in ore grade, types and metallurgy, volatility and level of commodity prices, the availability

of sufficient future financing, and other matters discussed under the caption "Risk Factors" in our Annual Report on

Form 10-K for the fiscal year ended October 31, 2017, as amended, and our other periodic and current reports filed

with the SEC and available on www.sec.gov and with the Canadian securit ies commissions available on

www.sedar.com. Readers are cautioned that forward-looking statements are not guarantees of future performance

and that actual results or developments may differ materially from those expressed or implied in the forward -

looking statements. Any forward-looking statement made by us in this release is based only on information

currently available to us and speaks only as of the date on which it is made. We undertake no obligation to publicly

update any forward-looking statement, whether written or oral, that may be made from time to time, whether as a

result of new information, future developments or otherwise.