REG - Gemfields Group Ltd - G-Factor for Natural Resources to 31 December 2025

GemfieldsAnnouncement

09/04/2026 07:00

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RNS Number : 6786Z  Gemfields Group Limited  09 April 2026

Incorporated in Guernsey. Guernsey registration Number: 47656

South African external company registration number 2009/012636/10

Share code on JSE: GML (General Segment of JSE Main Board) / AIM: GEM

ISIN: GG00BG0KTL52 | LEI: 21380017GAVXTCYS5R31

("Gemfields" or the "Group" or "Company")

Gemfields releases updated 'G-Factor for Natural Resources' figures to 31
December 2025

LONDON, 9 APRIL 2026

Gemfields is pleased to confirm its 'G-Factor for Natural Resources' figures
for the Kagem emerald mine in Zambia and Montepuez Ruby Mining in Mozambique,
which now stand at 17% and 26% respectively for the 10-year period from 2016
through 2025. The 'G-Factor for Natural Resources' reveals the percentage of
natural resource revenue paid to the government of the host country in the
form of mineral royalties, corporation tax and, where the relevant government
is a shareholder, dividends.

First announced in 2021, Gemfields shares its 'G-Factor for Natural Resources'
annually in an effort to promote greater transparency and accountability
regarding the level of natural resource wealth shared with the host country's
government, whether that value originates from the mining, oil, gas, timber or
fishing sectors. It is also an indicator of the efficiency of natural
resources companies in converting those natural resources into funds for the
host government.

Gemfields' CEO, Sean Gilbertson, said:

"Gemfields' 2025 G‑Factor for Natural Resources underscores how
contributions to host nations vary with market and operating conditions.

In Mozambique, Montepuez Ruby Mining paid 23% of its revenue to the Government
of Mozambique in 2025. Although total cash payments were lower than in prior
years - reflecting reduced premium‑ruby output, the postponed December ruby
auction and illegal‑mining intrusions - the proportional fiscal contribution
remained strong.

At Kagem in Zambia, the one‑year G‑Factor for Natural Resources was just
6% for 2025, far below its long‑term average. This reflects the halt in
mining operations at Kagem from January through April 2025 as a result of
competitor actions in the market and the temporary 15% export tax on precious
gemstones, which was lifted by March 2025. With operations restarted and
market conditions improving, we expect Kagem's G‑Factor to trend back toward
its long‑term average of around 18%.

We remain committed to the transparency provided by the G‑Factor for Natural
Resources and continue to encourage broader industry adoption so that host
governments and their citizens can better assess the stewardship of their
resources."

G-Factor for Natural Resources computations for Gemfields' two key mining
subsidiaries (the Kagem emerald mine in Zambia and Montepuez Ruby Mining in
Mozambique) are set out below:

 Montepuez Ruby Mining Limitada (Mozambique),     G-Factor   G-Factor    G-Factor     G-Factor

 USD million                                      (1 Year)   (5 Years)   (10 Years)   (since Gemfields acquired 75%)

                                                  2025       2021-2025   2016-2025    2012-2025
 (A)   Mineral Royalties Paid                     9.5        62.3        111.4        122.4
 (B)   Corporation Tax Paid                       1.8         83.7       164.1         174.4
 (C)   Dividends to Government (if applicable)    -          -           -            -
 (D)  Export Taxes/Levies                         -          -           -            -
 Total to Government (A+B+C+D)                    11.3       146.0       275.5        296.8
 (E)   Total Company Revenue                      49.9       632.5       1,071.4      1,222.3
                                                  23%        23%         26%          24%

 G-Factor, being (A+B+C+D)/E
 NOTES:                                                                               Gemfields announced the completion of its acquisition of 75% in MRM on 27

                                                                                    February 2012. Mining commenced 2012. Auctions commenced 2014.

 

 

 Kagem Mining Limited                           G-Factor                                                                      G-Factor    G-Factor     G-Factor

 (Zambia), USD million                          (1 Year)                                                                      (5 Years)   (10 Years)   (since Gemfields acquired 75%)

                                                2025                                                                          2021-2025   2016-2025    2008-2025
 (A)   Mineral Royalties Paid                   4.5                                                                           29.1        47.9         72.8
 (B)   Corporation Tax Paid                     0.4                                                                           40.1        60.6         101.6
 (C)  Dividends to Government (if applicable)   -                                                                             8.0         13.0         20.5
 (D)  Export Taxes/Levies                       -                                                                             -           12.4         12.4
 Total to Government (A+B+C+D)                  4.9                                                                           77.2        133.9        207.3
 (E) Total Company Revenue                      84.1                                                                          504.7       799.0        1,174.7
                                                6%                                                                            15%         17%          18%

 G-Factor, being (A+B+C+D)/E

 NOTES:                                         Kagem reported losses in 2024 and 2025 as a result of poor market conditions                           Gemfields completed the acquisition of a 75% interest in Kagem on 5 June 2008.

                                              and a suspension of all mining in the first half of 2025.

 

The 'G-Factor for Natural Resources'

The G-Factor for Natural Resourceswould typically be calculated by each
standalone company engaged primarily in the extraction and sale of natural
resources, whether in the mining, oil, gas, timber or fishing sectors.
Accordingly, multi-national natural resource companies would publish the
G-Factor for Natural Resourcesfor each operating subsidiary engaged primarily
in the extraction and sale of natural resources.

The G-Factor for Natural Resourcesis expressed as a percentage and is
calculated as:

 A(p) + B(p) + C(p) + D(p)
 E(p)

where:

·    A = the total mineral royalty (tax on revenue) paid by the reporting
company to the host country government during the period

·    B = the total corporation tax (tax on profit) paid by the reporting
company to the host country government during the period

·    C = the dividends paid by the reporting company to the host country
government during the period (where the host country government is a
shareholder in the reporting company)

·    D = the total export taxes or export levies paid by the reporting
company to the host country government during the period

·    E = the total revenues of the reporting company during the period

·    p = the relevant period, typically calculated for each of (i) the
prior year; (ii) the preceding 5 years and (iii) the preceding 10 years

·    The sums actually paid during the period (rather than the sums
accrued or falling due during the period) are used for the purposes of A, B, C
and D.

No measure of this type is perfect and it is recognised that:

a.    the G-Factor for Natural Resources is a "rule-of-thumb" - while it
has broad application and is a practical indicator, it is not suited to every
situation;

b.   there are numerous additional and indirect taxes which are not included
in the G-Factor for Natural Resources and which further increase the
contribution made to host nations by natural resource companies. Such taxes
include but are not limited to area/surface charges, social security
contributions, taxation on the salaries of employees, import and export
duties, VAT, etc; and

c.    the variety and variations in natural resource deposits, types and
occurrences lessens the ability to make direct comparisons between companies.

 

-ENDS-

 

Further information on Gemfields Group Limited can be found at:

 GEMFIELDSGROUP.COM (http://WWW.GEMFIELDSGROUP.COM)

 

To join our investor mailing list, contact us on:
ir@gemfields.com (mailto:ir@gemfields.com)

 

 

 ENQUIRIES

 GEMFIELDS                                      Sean Gilbertson / David Lovett / Heinrich Richter

                                                ir@gemfields.com (mailto:ir@gemfields.com)

T:  +44(0) 20 7518 3400
 SPONSOR (JSE)                                  Investec Bank Limited
 NOMINATED ADVISER                              Panmure Liberum

(AIM) & BROKER
Scott Mathieson / Amrit Mahbubani / John More
                                                T: +44(0) 20 3100 2222
 PRESS ENQUIRES, GEMFIELDS HEAD OFFICE, LONDON  press@gemfields.com (mailto:press@gemfields.com)

 

 

 

 

 

 

NOTES TO EDITORS

 

About Gemfields Group Limited

Gemfields is a world-leading miner of coloured gemstones, dual-listed on the
Johannesburg and London AIM stock exchanges.

Gemfields is the operator and 75% owner of both Kagem Mining in Zambia (a
world-leading emerald mine) and Montepuez Ruby Mining in Mozambique (situated
on one of the most significant recently discovered ruby deposits in the
world). In addition, Gemfields holds controlling interests in various other
gemstone mining and prospecting licenses in Zambia, Mozambique and Madagascar.

Gemfields has developed a proprietary grading system and a pioneering auction
platform to provide a consistent supply of coloured gemstones to downstream
markets, a key component of Gemfields' business model that has played an
important role in the growth of the global coloured gemstone sector.

 

GEMFIELDS.COM (https://gemfields.com/) (https://gemfields.com/) | INVESTORS
(https://www.gemfieldsgroup.com/) (https://www.gemfieldsgroup.com/) |
FOUNDATION (https://www.gemfieldsfoundation.org/) | INSTAGRAM
(https://www.instagram.com/gemfields/) (https://www.instagram.com/gemfields/)
| FACEBOOK (https://www.facebook.com/Gemfields/)
(https://www.facebook.com/Gemfields/) | X
(https://twitter.com/GemfieldsLtd?lang=en) | YOUTUBE
(https://www.youtube.com/channel/UCArCE0JFtakTP-tHq6v0KVg)

KAGEM MINING LINKEDIN (https://www.linkedin.com/company/kagem-mining-ltd) |
FACEBOOK (https://www.facebook.com/KagemMiningLtd/)

MONTEPUEZ RUBY MINING LINKEDIN
(https://www.linkedin.com/company/montepuez-ruby-mining) | FACEBOOK
(https://web.facebook.com/MontepuezRM?mibextid=wwXIfr&_rdc=1&_rdr)

 

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