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B2Gold Corp. Completes Mill Construction More Than Three Months Ahead of Schedule and Announces an Expanded and Updated Mine Plan for the Fekola Mine Located in Southwestern Mali

Mine Development & Operations

News Release

B2Gold Corp. Completes Mill Construction More Than Three Months Ahead of Schedule and

Announces an Expanded and Updated Mine Plan for the Fekola Mine Located in Southwestern

Mali

Vancouver, September 25, 2017 – B2Gold Corp. (TSX: BTO) (NYSE AMERICAN: BTG) (NSX: B2G)

(“B2Gold” or the “Company”) is pleased to announ ce that the Company has completed construction of

the Fekola mill and commenced ore processing, more than three months ahead of schedule and on budget,

at the Fekola Mine. Gold is now in the circuit and the first gold pour is anticipated by mid-October 2017.

The Company expects to achieve commercial produc tion and produce between 50,000 to 55,000 ounces

of gold by the end of 2017. In addition, the Comp any announces it has completed a new Life of Mine

(“LoM”) plan for the Fekola deposit that projects hi gher mill throughput and annual gold production, and

lower projected operating costs per ounce and all-in su staining costs (“AISC”) per ounce of gold than the

original (4 million tonnes per annum (“MTPA”)) plan in the Optimized Feasibility Study (“OFS”). The

new LoM plan was completed based on the expanded 5 MTPA mill throughput and takes into account an

early start-up, increased processing throughput, and improved open-pit design and scheduling versus the

OFS (see table below).

New Fekola LoM Plan Highlights:

A comparison of the OFS and LoM is as follows:

Parameters1 OFS – 4 MTPA

(June 2015)

New LoM – 5 MTPA

(September 2017)

LoM Gold Production (million ounces) 3.45 3.45

LoM (years) 12.5 10

Gold Production: LoM (‘000 ounces) 276 345

Gold Production: Years 1-3 (‘000 ounces) 333 400

Gold Production: Years 1-7 (‘000 ounces) 350 374

Operating Cash Cost: LoM (US$/oz) 552 428

Operating Cash Cost: Years 1-3 (US$/oz) 464 357

Operating Cash Cost: Years 1-7 (US$/oz) 418 391

AISC: LoM (US$/oz) 752 664

AISC: Years 1-3 (US$/oz) 717 604

AISC: Years 1-7 (US$/oz) 661 643

 No material change to Feasibility Mineral Reserves with the new resource model, pit and phase

designs, and production plan. The contained Mineral Reserve remains 3.34 million ounces2

contained in 43.8 million tonnes at an average grade of 2.37g/t

 No material change to mining production or fleet size

 Processing throughput increased to 5 Mtpa vs. 4 Mtpa in the OFS

 Significant upside in mine life and ounces produced exists within current resource, with further

potential as adjacent and other targets are developed

1Gold production, cash operating costs and AISC are presented on an average annual basis

2Mineral Reserves are reported on a 90% attributable basis

The Fekola Project has been built using the same cons truction team that had previously completed four

gold mines, on schedule and on budget, for B2Gold ’s predecessor company (Bema Gold Corporation)

and B2Gold. Prior to construction, the Company rec ognized the exploration potential beyond the initial

reserves and decided to build the Fekola mill with a 25 % design capacity to allow for future expansion of

the mill throughput from 4 MTPA to 5 MTPA for an additional expenditure of approximately $18

million. Due to the success of the Fekola Mine cons truction (more than three months ahead of schedule

and on budget) and further exploration success at Fekola, the Company decided to expedite the expansion

and complete it during the construction phase rather th an post construction. The Fekola Project remains

on budget; total cumulative forecast construction co sts for the project (from inception to completion)

include pre-construction sunk costs of approximately $41 million, feasibility study construction costs of

$462 million and $18 million additional costs for the m ill expansion to 5 MTPA. Additionally, another

$20 million is expected to be spent on relocating the village of Fadougou.

In 2018, the Fekola Mine is now projected to produce between 400,000 and 410,000 ounces of gold at an

operating cost of approximately $354 and AISC of $609 per ounce of gold.

Exploration

B2Gold’s exploration team believes the expansive Fekola property has the potential to host additional

large Fekola-style gold deposits. Surface exploration, regional drilling and geophysics to date have

identified numerous targets.

The Company has drilled approximately 2,800 airc ore, reverse circulation and diamond drill holes

totalling 180,000 metres. Approximately 75% of the dr illing has focused on exploration drilling with the

remainder on in-fill drilling. Based on the successful results to date, the Fekola Mine and regional

exploration budgets for 2017 have been increased by $3.8 million to $15.4 million

The resource identified to date from drilling belo w and to the north of the Fekola reserve boundary

combined with the near-pit portion of the Kiwi zone (to the north) could add 900,000 ounces (2/3 in the

indicated category) and is being further drilled to potentially move resources from the inferred category

into the measured and indicated categories. Drilling further to the north of the reserve pit boundary has

identified additional gold mineralization near surf ace and in some deeper holes. This indicates the

potential to increase the gold resources and ultimately expand the planned Fekola reserves further to the

north.

Deeper below the Kiwi zone is the down-plunge exte nsion of the main Fekola ore body. Drilling in this

zone (Fekola Deeps) has intercepted Fekola-type gold grades over large intervals. If the on-going drilling

between the near surface Kiwi zone and Fekol a Deeps continues to encounter good grade gold

mineralization, there is the potential for the Fekola p it to ultimately become much larger to exploit both

the Kiwi zone and a portion of Fekola Deeps by open p it. The Fekola Deeps zone remains open further to

the north further down dip and has the potential to be exploited by underground mining.

The Company anticipates another large exploration budget (approximately $15 million) for Fekola in

2018, for in-fill drilling, further exploration drilling at the Kiwi and Fekola Deeps zones and regional

exploration. The Company anticipates announcing r esults from the 2017 drilling program in November

2017.

Update on the Fekola Shareholder Agreement and Mining Convention

In 2016, pursuant to applicable mining law, the Company formed a new 100% owned subsidiary

company, Fekola SA, which now holds the Company’s interest in the Fekola Project. Upon signing of a

shareholder’s agreement between the Company a nd the State of Mali (the “Fekola Shareholder

Agreement”), the Company will contribute a 10% free ca rried interest in Fekola SA to the State of Mali.

The State of Mali also has the option to purchase an additional 10% of Fekola SA which it has confirmed

its intent to exercise. The Company has signed a mining convention in the form required under the 2012

Mining Code (the “Fekola Conventio n”) that relates to, among other th ings, the ownership, permitting,

reclamation bond requirements, development, operation and taxation applicable to the Fekola Project with

the State of Mali. The Company recently finalized ce rtain additional agreements with the State of Mali

including the Fekola Shareholders Agreement and an amendment to the Fekola Mining convention to

address and clarify certain issues under the 2012 Mi ning Code. The Fekola Mining Convention, as

amended, will govern the procedur al and economic parameters pursuant to which the Company will

operate the Fekola Project.

About B2Gold Corp.

Headquartered in Vancouver, Canada, B2Gold Corp . is one of the fastest-growing intermediate gold

producers in the world. Founded in 2007, today, B2Gold has five operating mines (four in production and

one in pre-production), and numerous exploration and development projects in various countries

including Finland, Nicaragua, the Philippines, Namibia, Mali and Burkina Faso.

Based on current assumptions and updates to B2Gold’s current year guidance and long-term mine plans,

the Company is projecting consolidated gold pr oduction in 2017 of between 530,000 and 570,000 ounces

(including estimated pre-commercial production fro m the Fekola Mine of between 50,000 and 55,000

ounces); and in 2018, significantly increasing to be tween 925,000 and 975,000 ounces, with the inclusion

of the anticipated first full-year of commercial production at Fekola.

ON BEHALF OF B2GOLD CORP.

“Clive T. Johnson”

President and Chief Executive Officer

Qualified Person

Tom Garagan, Senior Vice President of Exploration for B2Gold, a qualified person under NI 43-101, has

approved the exploration information contained in this news release.

Peter D. Montano, P.E., the Project Director of B2Gold, a qualified person under NI 43-101, has

approved the scientific and technical information contained in this news release.

For more information on B2Gold please visit the Company website at www.b2gold.com or contact:

Ian MacLean Katie Bromley

Vice President, Investor Relations Manage r, Investor Relations & Public Relations

604-681-8371 604-681-8371

[email protected] [email protected]

This news release includes certain “forward-looking information” and “forward-looking statements” (collectively

“forward-looking statements”) within the meaning of applicable securities legislation, including projections of

future financial and operational perform ance; statements with respect to fu ture events or future performance;

production estimates and guidance, including the Company’s projected gold production of between 530,000 to

570,000 ounces in 2017 (including pre-commercial production from Fekola of between 50,000 and 55,000 ounces)

and projected gold production of between 925,000 and 975,000 ounces in 2018; projected operating and production

costs and guidance; estimates of ca pital expenditures and pl anned investments and budgets; and statements

regarding anticipated exploration, development, construction, production, permitting an d other activities of the

Company, including: the Fekola Project being approximately three months ahead of schedule and beginning

production in October 2017; the first gold pour at Fekola being by or about mid-October 2017; Fekola achieving

commercial production and producing 50,000 to 55,000 ounces of gold by the end of 2017; Fekola producing

between 400,000 and 410,000 ounces of gold at an operating cost of approximately $354 and AISC of $609 per

ounce of gold in 2018; the estimates, projections and anticipated results in the OFS LoM plan and the new LoM

plan, including the projection in the new LoM plan of higher mill throughput and annual gold production, lower

operating costs per ounce and AISC per ounce compared to the OFS; the Fekola Project being on budget; the

estimated pre-construction and construction costs at Fekola and the cost to relocate the village of Fadougou; the

State of Mali exercising its option to ac quire an additional 10% interest in th e Fekola Project, for an aggregate

20% interest; the results of future exploration; the potential to identify additional mineral resources and to convert

existing and new mineral resources into mineral reserves and to extend anticipated mine life; the potential to extend

the current Fekola LoM by 3 years and 900,000 ounces; the potential for mineralization to extend north of the

current Fekola resource and for exploration to expand the resource at Fekola; the potential to extend the Fekola pit

to the north and mine a portion of Kiwi and Fekola Deeps zones by open pit or underground; exploration plans

including future drilling; future cash flows; the amendment of the Fekola Mining Convention; expectations of future

growth and profitability and the adequacy of capital for continued operations. Estimates of mineral resources and

reserves are also forward-looking statements because th ey constitute projections, based on certain estimates and

assumptions, regarding the amount of minerals that may be encountered in the future and/or the anticipated

economics of production, should a production decision be made. All statements in this news release that address

events or developments that we expect to occur in the future are forwar d-looking statements. Forward-looking

statements are statements that are not historical facts and are generally, although not always, identified by words

such as “expect”, “plan”, “anticipate”, “project”, “t arget”, “potential”, “schedule”, “forecast”, “budget”,

“estimate”, “intend” or “believe” an d similar expressions or their negati ve connotations, or that events or

conditions “will”, “would”, “may”, “c ould”, “should” or “might” occur.

Forward-looking statements necessarily involve assumptio ns, risks and uncertainties, certain of which are beyond

B2Gold’s control, including risks associated with the volatility of metal prices and the Company’s common shares;

risks and dangers inherent in exploratio n, development and mining activities; uncertainty of reserve and resource

estimates; risk of not achieving production, cost or other estimates; risk that actual production, development plans

and costs differ materially from the estimates in the Company’s feasibility studies; risks related to ore purchase

commitments; the ability to obtain and maintain any nece ssary permits, consents or authorizations required for

mining activities; risks related to environmental regulations or hazards and compliance with complex regulations

associated with mining activities; the ability to replace mineral reserves and identify acquisition opportunities;

availability of financing and financing risks; risks relate d to operations in foreign and developing countries and

compliance with foreign laws; risks related to remote operations and the availability adequate infrastructure,

fluctuations in price and availability of energy and other inputs necessary for mining operations; regulatory,

political and country risks; the final outcome of the Depa rtment of Environment and Natural Resources audit; as

well as other factors identified and as described in more detail under the heading “Risk Factors” in B2Gold’s most

recent Annual Informa tion Form and B2Gold’s other f ilings with Canadian securiti es regulators and the U.S.

Securities and Exchange Commission (the “SEC”), which may be viewed at www.sedar.com and www.sec.gov,

respectively. The list is not exhaustive of the factors that may affect the Company’s forward-looking statements.

There can be no assurance that such statements will pro ve to be accurate, and actual results, performance or

achievements could differ materially from those expresse d in, or implied by, these forward-looking statements.

Accordingly, no assurance can be given that any events anticipated by the forward-looking statements will transpire

or occur. The Company’s forward-lo oking statements reflect current exp ectations regarding future events and

operating performance and speak only as of the date hereof and the Company does not assume any obligation to

update forward-looking statements if circumstances or management's beliefs, expectations or opinions should

change other than as required by applicable law. For the reasons set forth above, undue reliance should not be

placed on forward-looking statements.

Non-IFRS Measures:

This news release includes certain terms or performance measures commonly used in the mining industry that are

not defined under International Financial Reporting Standards (“IFRS”), including “cash operating costs” and

“all-in sustaining costs” (or “AISC”). Non-IFRS measures do not have any standardized meaning prescribed under

IFRS, and therefore they may not be comparable to similar measures employed by other companies. The data

presented is intended to provide additional information and sh ould not be considered in isolation or as a substitute

for measures of performance prepared in accordance with IFRS and should be read in conjunction with B2Gold’s

consolidated financial statements. Readers should refer to B2Gold’s management discussion and analysis, available

under B2Gold’s corporate profile at www.sedar.com and at www.sec.gov or on its website at www.b2gold.com,

under the heading “Non-IFRS Measures” for a more detailed discussion of how B2Gold calculates such measures.

National Instrument 43-101

Cautionary Note to United States Investors:

The Company has prepared its public disclosures in accordance with Canadian securities laws, which differ in

certain respects from U.S. securities laws. In particular, this news release refers to “mineral resources”, “indicated

mineral resources” and “inferred mineral resources”. While these categories of mineralization are recognized and

required by Canadian securities laws, they are not recogn ized by the SEC and are not normally permitted to be

disclosed in SEC filings by U.S. companie s. U.S. investors are cautioned not to assume that any part of a “mineral

resource”, “indicated mineral resource” or an “inferred mineral resource” will ever be converted into a “reserve.”

In addition, “reserves” reported by the Company under Canadian standards may not qualify as reserves under SEC

standards. Under SEC standards, mineralization may not be classified as a “reserve” unless the mineralization can

be economically and legally extracted or produced at th e time the “reserve” determina tion is made. Accordingly,

information contained or referenced in this news release containing descriptions of the Company’s mineral deposits

may not be compatible to similar information made public by U.S. companies subject to the reporting and disclosure

requirements of U.S. federal securities laws, rules and regulations. “Inferred mineral resources” have a great

amount of uncertainty as to their existence and great uncertainty as to their economic and legal feasibility. It cannot

be assumed that all or any part of an inferred mineral resource will ever be upgraded to a higher category.

Historical results or feasibility models presented herein are not guarantees or expectations of future performance.

Currency: All amounts in this news release are expressed in United States dollars, unless otherwise stated.

The Toronto Stock Exchange and the NYSE American LLC have not reviewed and do not accept responsibility for

the accuracy or adequacy of this news release, which has been prepared by the Company.