Sibanye Stillwater : Biodiversity management

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FACTSHEET 2023

BIODIVERSITY MANAGEMENT

We recognise the pressing need to reverse biodiversity loss across the world, as resolved at the United

Nations Biodiversity Conference (COP15) in December 2022. The ICMM Nature position statement was concluded by the end of 2023, which required Sibanye-Stillwater to re-evaluate work undertaken in the past, as well as its plans for biodiversity management in the future.

In 2021, we committed to net biodiversity gain for existing operations and no net loss for new operations upon closure. Since then we have accomplished much in developing baselines for operations and monitoring assessments, in the interests of supporting more resilient ecosystems. Our biodiversity assessments consider the nature-climate-and-water nexus, and plans for intervention take into account water, land, air, carbon, climate change, species and ecosystems, all in the context of the socioeconomic development requirements of our surrounding communities.

The integration of these various considerations falls under our Nature stewardship approach, the success of which depends on collaboration with surrounding communities, as well as with private and public institutions.

This factsheet outlines our Nature stewardship progress in 2023 and planned undertakings for 2024. Our Integrated ESG policy, Biodiversity position statement and Biodiversity procedure will be demonstrated herein.

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FACTSHEET 2023

NATURE STEWARDSHIP 3 WHAT IT MEANS TO US

• Avoidance first: we avoid sensitive and critical ecological resources, not only those that are protected or publicly recognised. We acknowledge that avoidance may not be achievable in totality and all steps of the mitigation hierarchy are embedded into our project planning and management approaches
• To entrench a pragmatic approach to nature and biodiversity management that focuses on socio-economic needs in combination with nature
• Deforestation: our avoidance first approach includes forests where applicable. However, mine development and expansion cannot occur without some loss. After limiting our impacts through avoidance and mitigation, we further investigate rehabilitation and potential future offset opportunities to achieve no net loss
• Public reporting, education and awareness: we are open and transparent in our reporting. We have education initiatives internally to ensure sustained management of our natural resources
• Local and international partnerships: successful biodiversity management can only be achieved through the formation of successful partnerships, whether through on-site collaborations, shared learnings or common global goals
• Respect protected areas: This goes beyond our commitment to not mine in protected areas, but ensures our area of influence does not impact upon it and that we inform our suppliers to also respect these areas

OUR APPROACH TO BIODIVERSITY MANAGEMENT

Policy

Our Integrated ESG policy (see www.sibanyestillwater.com/sustainability/reports-policies) guides our approach to biodiversity and the responsible management of nature. Our pro-active policies and environmental management are aimed at minimising the impact of our operations, promoting ecosystem resilience, avoiding critical and legally-protected areas, and enhancing circular economies.

Position statement

Our Biodiversity position statement outlines our commitments to demonstrate leadership in biodiversity management and promote resilience in post-miningecosystems. See www.sibanyestillwater.com/sustainability/reports-policies/.

Procedure

Our Biodiversity procedure outlines Sibanye-Stillwater9s approach to responsible biodiversity management. The procedure requires the execution of the mitigation hierarchy from project phase to closure. We employ mitigation and restoration to arrive at a state of net zero environmental deterioration, or a net gain.

Alignment with external standards, guidelines and reporting requirements

The Biodiversity procedure considers a number of reporting requirements including the Global Reporting Initiative (GRI), the International Council on Mining and Metals (ICMM), local guidelines and laws, and investment criteria such as those promoted by the JSE. We recognise that biodiversity is a dynamic field (trending toward stricter measures) and we note its relevance to UN SDGs 14 and 15, as well as to the UN9s 2030 agenda for Sustainable Development. Our aims further align with the UN9s goal to reverse environmental degradation and natural habitat loss.

Biodiversity assessment and management requirements

As noted in the Biodiversity procedure, Sibanye-Stillwater employs credible and accepted monitoring and assessment methods. These are reviewed regularly and, as appropriate, replaced or improved upon. Our assessment approach seeks alignment to global best practice methods in environmental science.

AQUATIC BIOMONITORING RESULTS 2023

Our SA gold and PGM operations use the South African scoring system (version 5) to monitor aquatic macroinvertebrates biannually. We also use the Macroinvertebrate Response Assessment Index (MIRAI). Similarly, our US PGM operations use an aquatic multi-metric invertebrates index. In addition, chlorophyll-a concentrations and periphyton indices are also used to interpret stream health in the US. A summary of the results, the change from the previous year, and management actions are provided below.

The results from the monitoring assessments have been presented on new maps and expanded to include monitoring of all activities. The new format provides aerial representation, a catchment-based view of monitoring and management, and a summary of changes to biodiversity, along with key management measures.

Ultimately, we aim to execute on a regional catchment-based management and rehabilitation approach. Rehabilitation should be sustainable, in the sense that it does not result in fragmentation of ecosystems, but rather sustains itself as a whole. Our biodiversity efforts are supported by integrated dynamic regional water balances.

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FACTSHEET 2023

Interpretation of biomonitoring classes

Class as per index

Interpretation

Management comment

Polluted

E/F

D

C

B

A

Too polluted to sample

Critically modified

Largely modified

Moderately modified

Largely natural

Natural

The site conditions presented unacceptable health risks and could not be sampled. These sites are expected to be largely devoid of life

Unacceptable condition, requires intervention

Allowable but with restoration required at mine closure

Minimum class aimed for upon completion of restoration

Maintenance of this category is recommended

Maintenance of this category is recommended

SA GOLD OPERATIONS

BEATRIX	Catchment Area	Middle Vaal 3 Sand-Vet Catchment
	Change from	" Improvement of water quality observed in the
	water bodies, specifically salinity due to the
	previous year
	closure of Beatrix 4 shaft
	Key influences	" Naturally low flow conditions and limited habitat
	on condition	" Erosion throughout catchment, but
		improvement in basal cover noted in most
		catchments
		" High salinity in the Theronspruit
	Key	" Investigate salinity impacts to be addressed as
	management	part of greater closure and rehabilitation so as
	measures	to aim for long term sustainable measures
		" Waste water plants improved their performance
		in 2023. The closure of the Beatrix 4# lead to a
		slight salinity increase in the downstream
		environment.
BURNSTONE	Catchment Area	Upper Vaal 3 Suikerbosrand Tributary

Change from previous year

• Exceedances were experienced in water quality in 2022 but controls have been put in place during 2023. The water treatment systems were implemented and overall water quality improved for aluminium and fluoride levels. The system will be monitored closely to evaluate our impact as the mine moves into the operational phase

	Key influences	" Naturally low flow conditions and limited
	on condition	habitat due to wetland nature of watercourses
		" Ongoing fluctuations in down- and upstream
		sites as a result of the natural sediment and soil
		qualities
	Key	" Ongoing focus on ensuring mine development
	management	and ramp-up towards becoming operational
	measures	avoids any negative impacts, this includes
		construction of pollution control facilities for
		which regulatory approval has been
		outstanding due to delays in processing by the
		Department of Water and Sanitation
		" Treatment systems installed and upgraded
		underground to improve the dissolved metal
		loads in the final discharge to the downstream
		environment

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FACTSHEET 2023

SA GOLD OPERATIONS continued

RAND URANIUM, DRIEFONTEIN AND KLOOF	Catchment Area	Upper Vaal 3 Wonderfonteinspruit
	Change from	" Improvement noted for the catchment
	previous year
	downstream of Sibanye-Stillwater operations;
		whereas the upstream catchment, which is
		negatively impacted by historic unrehabilitated
		mining sites and raw municipal sewage inflows,
		is still in a severely deteriorated state. This
		requires investigation by the Department of
		Water and Sanitation, because of the impact of
		this water body on the sensitive downstream
		aquatic environment
	Key influences	" Significant water quality alterations, particularly
	on condition	from sewage, resulting in hypertrophic and
		acutely toxic conditions

Key management measures

• Rand Uranium (Cooke 1 shaft) as well as Kloof and Driefontein discharges continue to provide dilution for acutely toxic inputs from the upstream catchment (sewage and historical challenges)
• Closure and rehabilitation of the Rand Uranium Cooke 1, 2 and 3 shafts will result in the restoration of natural freshwater eyes (springs), which will improve water quality and quantity in the Wonderfonteinspruit
• The Middelvleispruit experienced toxic effluent discharges that deteriorated the state of the stream; these discharges were reported to the responsible third parties and regulators by Sibanye-Stillwater, in the interests of integrated catchment management

DRIEFONTEIN AND KLOOF	Catchment Area	Upper Vaal 3 Loopspruit
	Change from	" Improvement compared to 2022 state.
	previous year	Driefontein and Kloof had challenges at the
		wastewater treatment works but downstream
		water qualities and nutrient loads improved. The
		mines also saw an increase in the fissure/
		groundwater salinity with a significant increase
		in flow during the reporting period, but due to
		the controls implemented by the mine the
		impact on the natural environment was
		managed and it showed an improvement
		compared to the previous year
	Key influences	" Agriculture and mining contribute to changes in
	on condition	habitat, flow and quality
		" Increase in groundwater salinity was observed
		with the increase in the 2023 pumping volumes.
		The key toxicity parameters were managed
		within the required ranges

Key management " Completion of instream rehabilitation studies,

measuressubmitted along with cut-off trench for authorisation; instream disturbances will be limited and targeted only to risk areas as determined by specialist studies

" Improving internal water treatment systems

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FACTSHEET 2023

SA GOLD OPERATIONS continued

EZULWINI AND KLOOF	Catchment Area	Upper Vaal 3 Rietspruit
	Change from	" Stable conditions compared to 2022. Ezulwini
	previous year
	had an increase in dissolved metals and salt
		load in 2023, but the final discharge via the
		Peter Wright dam showed effective passive
		treatment which minimised the impact on the
		downstream environment. Kloof 10 experienced
		an increase in flow and salt load but has
		remained stable since 2022. Improvement in
		overall water quality and biomonitoring did not
		reveal any deterioration in the state of the
		aquatic environment influenced by the mine
	Key influences	" Klein Wes Rietspruit experiences significant
	on condition	hydrological alterations due to high volume
		water discharged from underground
		" The Leeuspruit West experiences instream
		alterations due to mining activities (including
		illegal mining) and overgrazing
	Key management " Awaiting regulatory approval for various
	measures	rehabilitation and pollution prevention projects
		" Seeking approval to cease discharge from
		Ezulwini into the Klein Wes Rietspruit; to be
		followed by rehabilitation
		" Alien and invasive species removal, improved
		security and prevention of illegal mining, as well
		as ongoing rehabilitation activities involving
		source removal of contamination sources
		contribute to ongoing improvements to
		Leeuspruit West
RAND URANIUM SURFACE	Catchment Area	Crocodile West 3 Bloubankspruit
	Change from	" Deterioration compared to 2022. Installed new
	previous year
	systems but variability in quality experienced
		with improvements shown in Q3 and Q4 2023
	Key influences	" Mining in the form of catchment alterations,
	on condition	seepage, and treated and untreated acid mine
		drainage discharges
		" Sewage inflows from municipal waste water
		works and chemical dumps from the industries
		also impact the Bloubankspruit, deterioration
		noted since 2021
	Key management " Complete reclamation activities and execute
	measures	with rehabilitation
		" Continued treatment of legacy acid mine
		drainage; joint intervention with other
		responsible parties including Department of
		Water and Sanitation into improving treatment
		and rehabilitating of the upper areas of the
		Tweelopiespruit
		" Continued monitoring of quality and reporting
		to responsible third parties and regulators to
		address noted pollution events

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FACTSHEET 2023

SA PGM OPERATIONS

RUSTENBURG AND KROONDAL	Catchment Area	Crocodile West 3 Hex River
	Change from	" State remained deteriorated and no
	previous year
	improvement has been made because of the
		upstream conditions feeding into the system
		from municipalities and other users within the
		catchment
	Key influences	" Catchment shows significant fluctuations due to
	on condition	rainfall patterns, with dilution only available for
		limited period during the high flow season
		" Untreated sewage and, to a lesser extent, mine
		seepage and overflows are the main
		challenges
	Key management " Ongoing execution of various stormwater
	measures	management measures are being executed,
		including additional studies for new
		infrastructure to reduce impacted return flows
		" Joint collaborative catchment management
		interventions have been implemented with
		neighbouring mines and continue
Marikana, Rustenburg and Kroondal 3 Marikana	Catchment Area	Crocodile West 3 Sterkstroom and Kareespruit
	Change from	" Maretlwana and Sterkstroom showed improving
	previous year	conditions, while the Kareespruit showed
		deterioration. The condition of these systems is
		largely influenced by users outside of the mining
		property
	Key influences	" Catchment shows significant fluctuations due to
	on condition	rainfall patterns; habitat is limited in low flow
		seasons
		" Habitat is excellent at most upstream sites, but
		deteriorates downstream, from cobbled habitat
		to muddy wetland areas
	Key management " Additional sites added to biomonitoring
	measures	programme to monitor the Brakspruit tributary
		" Additional avoidance mechanisms
		implemented to prevent dirty water discharges
		" Nutrient removal plant successfully
		implemented at Karee 3 operations
BLUERIDGE	Catchment Area	Olifants
	Change from	" Improving water qualities since 2022 with
	previous year	minimal interventions required in 2023
	Key influences	" Tributaries experience very low flow, which limits
	on condition	the ability to sample
		" The Olifants is impacted (in respect of quality
		and quantity) by agricultural and municipal
		activities
		" There are no impacts currently from Blue Ridge
	Key management " Sensitive area specialist studies underway,
	measures	including site specific rehabilitation
		requirements

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FACTSHEET 2023

SA PGM OPERATIONS continued

EAST BOULDER 3 US PGM OPERATIONS	Catchment Area East Boulder River
	Change from	"	No significant change
	previous year
	Key influences	"	Nutrient enrichment
	on condition
	Key management " Commitment to maintain natural ecological
	measures		integrity of the East Boulder River
		" Continuous improvement in water treatment
			systems
		"	Focus on reduction of non-point source nutrients

STILLWATER 3 US PGM OPERATIONS	Catchment Area Stillwater River
	Change from	"	No significant change
	previous year
	Key influences	"	Nutrient enrichment
	on condition
	Key management " Commitment to maintain natural ecological
	measures		integrity of the Stillwater River
		" Continuous improvement in water treatment
			systems
		"	Focus on reduction of non-point source nutrients

QUANTIFICATION OF OUR BIODIVERSITY FOOTPRINT: THE BIOLOGICAL DIVERSITY PROTOCOL

The BD Protocol provides companies like ours with an accounting and reporting framework to consolidate data in a standardised, comparable, credible and unbiased way. (See https://nbbnbdp.org/)

The management plans for all of our operational sites have spatial datasets, specialist findings, KPIs, monitoring programmes, closure and rehabilitation assessments, as well as water-use management practices.

We do not follow the traditional approach of standalone bulky biodiversity action plans, instead we perform:

• Focused routine specialist assessments
• Monitoring
• Action plans embedded into our operational plans
• Environmental management plans
• Water use and other management plans (e.g., air, land, and rehabilitation)

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FACTSHEET 2023

Before we commence with a new project, we investigate the present state of biodiversity at the site: species, ecosystems,

and natural processes. Suitable monitoring and mitigation measures are implemented accordingly, as demonstrated in the sections

c) Terrestrial ecosystem assessments

Summary of assessment

Recognition statements

to follow.

BIODIVERSITY ASSESSMENTS AND MANAGEMENT REQUIREMENTS

a) Wetland status assessments implemented

Summary of assessment	Recognition statements

Terrestrial ecosystem assessments are based on:

"	Types of ecosystems
	as per regional and
	national classifications
"	Degree of alteration,

Wetland and aquatic biomonitoring assessments include consideration of surrounding terrestrial ecosystems.

However, for proper management oversight, more direct assessments of terrestrial ecosystems are required. Species dependencies in terrestrial ecosystems differ from wetland and

Wetlands are assessed in respect of:

• Extent
• Type
• Condition
• Ecosystem services

Site-specific assessments follow local best practice.

Data from authorities and GIS-based datasets help fill gaps and support site-based assessments.

Wetlands are critical ecosystems essential for numerous post-mining economies.

Wetlands support climate resilience through disaster risk reduction (e.g., helping to prevent flooding). They contribute to climate neutrality by way of GHG sequestration and reduced decomposition rates, both for

mostly informed by

GIS based

assessments but also

confirmed (as

needed) by on-site

assessments

We also consider the protection status of these ecosystems.

aquatic ecosystems, and hence further assessment is required.

Responsible terrestrial land management practices have a direct influence on ensuring total catchment health and the ability to execute on sustainable post-mining activities such as agriculture and conservation. Several terrestrial ecosystems also play vital functions in climate change resilience.

The results of the assessments are included in our hectare equivalency results.

inundated and adjacent wetland areas. In the case of disaster resilience (e.g., flood attenuation) wetlands reduce the impact of drought and

d) Species assessments

Summary of assessment	Recognition statements

floods, among other important functions.

As described above, species are considered in several of the broader ecosystem

Above and beyond the protection of ecosystems, it must be recognised that species at risk of extinction demand additional intervention measures. These

b) Aquatic biomonitoring implemented

Summary of assessment	Recognition statements
We have implemented	Assessments of aquatic conditions
aquatic biomonitoring	include both flowing (Iotic) and still
across the Group, these	(lentic) freshwater environments.
assessments include:	Wetland (lentic) assessments focus
"	Macroinvertebrates	on form, function, flora and soils.
Riverine (lotic) assessments focus on
"	Fish
biological indicators to inform impacts
"	Dragonflies	on various taxa based on their relative
"	Habitat	sensitivities and reaction to stimuli
"	Chlorophyll-a	within the catchment. These stimuli
include water quality and quantity,
"	Periphyton
habitat and climatic conditions.
Bespoke indices used	The relative health of aquatic
per region to assess the	organisms is a useful indicator of our
condition of freshwater	environmental impact. Our biodiversity
environments associated	indices constitute effective
with our operations.	management tools to assess impacts
		and implement mitigation, as per our
		mitigation hierarchy.
		We have provided an overview of our
		annual macroinvertebrate, periphyton
		and chlorophyll-a findings in this fact
		sheet.

assessments. However, there is a need to further assess species in terms of:

• Species of conservation concern
• Presence, absence and abundance assessments of specific indicator species
• Translocation and reintroduction of species

measures often require collaborative efforts to work with all involved stakeholders.

Examples of these types of initiatives include: the Big Horn Sheep and trout monitoring and protection programmes at our US operations; floral species translocation; alien and invasive species removal and replacement with native species; and protection of critical and rare habitats such as the cave systems at our SA gold operations.

Species assessments remains an important concern for Sibanye- Stillwater.

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FACTSHEET 2023

The BD Protocol is a globally applicable accounting framework for biodiversity, providing a quantitative, comparable and unbiased measuring and reporting framework for biodiversity.

The BD Protocol aligns with Sibanye-Stillwater9s Biodiversity procedure in the use of local science-based methods to produce condition scores and delineate habitat extent. Such results are used to produce Sibanye-Stillwater was a pioneering adopter of the method, which still lacked practical guidelines, and we welcome the development of other reporting guidelines that tend to use similar metrics to assess biodiversity management.

We did not progress the BD Protocol footprint work during 2023 due to the developing standards and to realign to the ICMM Nature position statement. However, the results previously reported, in 2022, remain our foundation for further work we will undertake in the next two to three years.

The following commitments apply to our biodiversity ambitions (present state versus reference state) as follows:

• Net gain: this target is for all existing operations that Sibanye- Stillwater acquired and commenced with; the aim is to improve the hectare equivalents upon closure as against date of acquisition or a 2020 baseline; this typically applies to all existing operations that feature in the assessments
• No net loss: this applies to new developments. Whereby we aim for no loss from the state at which we started development and should be achieved upon closure

Exclusions from our 2022 BD protocol footprint analysis

• Joint ventures and land not directly impacted by Sibanye- Stillwater9s operations were not considered in the initial baseline setting work; nor were long-term facilities for which there is no end of life plan, this includes the Columbus Metallurgical Complex and the Brakpan-based precious metals refinery
• Operations acquired after January 2021
• Species assessments were excluded, although initial descriptions
  and consideration of species in the context of ecosystem assessments were included*

These exclusions will remain and other newly acquired industrial sites will not be considered in future assessments as their life expectancy is indefinite, especially where established in industrial areas. We welcome the development of further guidelines in 2024 by federations like the ICMM as there are still many practical challenges as to how linear infrastructure and social development programs should be assessed amongst others.

Results

The graph shows the current biodiversity footprints, expressed as a percentage based on the hectare equivalent assessments. The total footprint for 2022 was 52,033ha (2,121.92ha more than 2021), made-

up of a <_positive3d_ footprint="" of="" _72c_811.7ha="" _28_1525_="" an="" increase="" _225_="" from="" _202129_="" and="" a=""><_negative3d_ footprint="" of="" _442c_226.07ha="" _28_8525_2c_="" a="" decrease="" _225_29_.="" following="" the="" successful="" completion="" middelvlei="" pits="" _rehabilitation2c_="" net="" increase="" _0.1225_="" in="" positive="" for="" rand="" uranium="" _28_cooke29_="" was="" _achieved2c_="" this="" translates="" to="" gain="" 7ha.="" total="" _1025_="" biodiversity="" _noted2c_="" most="" which="" occurred="" due="">re-assessment of the wetland and terrestrial ecosystems and not as a result of rehabilitation activities (Rand Uranium9s, Cooke, rehabilitation activities accounted for 0.014% improvement for the SA region).

The US region showed considerable improvement in its positive biodiversity footprint of 13% for East Boulder mine and 10% for Stillwater mine. This was due to the significant expansion in the area of assessment at our US region to include areas beyond the direct mining footprint, including ancillary activities, designated conservation easements, land leased to private persons, as well as improved ecological state assessments. The baseline was also reassessed resulting in the net change in the positive biodiversity footprint from baseline to 2022 of 9% and 10% respectively for East Boulder and Stillwater mines.

The assessment includes 24 ecosystem types for the SA region and

16 ecosystem types for the US region, with the 2022 expanded areas assessments adding three new ecosystem types for the US region. South African legislation (i.e. National Environmental Management Act; National Biodiversity Act) provides for the categorisation of ecosystems in need of protection. Accordingly, the Vaal-Vet Sandy Grasslands and Wetlands in the Free State (Beatrix Mine) are classified endangered. The Soweto Highveld Grasslands and Wetlands in Gauteng and Mpumalanga (Rand Uranium, Cooke and Burnstone), the Rand Highveld Grasslands in Gauteng (Kloof) and the Marikana Thornveld and Wetlands in Rustenburg (Rustenburg, Kroondal and Marikana) are classified vulnerable.

Unlike South Africa, the US does not have national ecosystem status assessments. Sibanye-Stillwater has done its own study on ecosystem types around the Stillwater mine and East Boulder mine that may host species of conservation concern.1 These include the grizzly bear (IUCN red list: least concern), the Canada lynx (IUCN red list: least concern) and the whitebark pine (IUCN red list: endangered), associated with the following ecosystem types: Rocky Mountain Lower Montane, Foothill and Valley Grassland, Rocky Mountain Montane Douglas-fir Forest and Woodland, Rocky Mountain Lodgepole Pine Forest, Montane Sagebrush Steppe, Aspen Forest and Woodland, Rocky Mountain Montane-Foothill Deciduous Shrubland, Rocky Mountain Subalpine Dry-MesicSpruce-Fir Forest and Woodland, Rocky Mountain Lower Montane-Foothill Riparian Woodland and Shrubland, Rocky Mountain Foothill Limber Pine- Juniper Woodland, Big Sagebrush Steppe, and Alpine-Montane Wet Meadow. East Boulder has a similar range of ecosystem types, however, whitebark pine was not identified as a species of conservation concern.

• Further IUCN red list species information can be found in our previous disclosures and remains relevant2020 Biodiversity Fact Sheet, www.sibanyestillwater.com/news-investors/reports/annual/2020/.

BD Protocol 2022 assessment results, percentage positive and negative as based on hectare equivalents

NET GAIN FROM DATE OF ACQUISITION

100%

80%

60%

40%

20%

0%

Beatrix Burnstone Blue	Kroondal Driefontein Kloof MarikanaRustenburg Ezulwini	Rand
		Ridge			(both)	Uranium
		% Negative			% Change from baseline
		% Positive

NO NET LOSS

FROM BASELINE

East Boulder	Stillwater
mine	mine

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FACTSHEET 2023

FUTURE FOCUS

Our focus areas are as follows:

• Updated sensitive area assessments were completed in 2022 and finalisation of routine updates as required over the next 3 to 5 years. All assessments are to be rebased to 2020 in order to be aligned with ICMM requirements.
• Gradual integration of net gain and no net loss biodiversity considerations into our closure obligations, commitments and biodiversity management plans for all our acquired assets, new projects and existing operations
• To continue our concurrent rehabilitation commitments as such work is the first step to enhance biodiversity at and around our facilities
• Continued integration of biodiversity into various decision-making tools including land stewardship, rehabilitation and tailings management GIS systems
• To include detailed species assessments when future assessments are conducted

What can be expected in the next 10 years

• Net improvement from current state after completion of restoration projects: Beatrix, Blue Ridge, Rand Uranium (Cooke) and Ezulwini.
• Decline in biodiversity from the current state due to planned expansions: Burnstone, Marikana, Stillwater and East Boulder.
  For planned expansions we will limit net loss through the execution of option analyses in line with the mitigation hierarchy, and we will include restoration plans from the onset of the project.
• Maintenance of current state as no major changes are planned: Driefontein, Rustenburg, Kroondal and Kloof.

Situation analyses following mine closure (when biodiversity objectives should ultimately be achieved) show that net gain objectives are likely to be achieved.

Through our regional and integrated catchment initiatives we partner with other stakeholders to increase our positive footprint contributions beyond our boundaries. In the interests of integrated catchment management, we are a key driving force in various initiatives, including:

1. National Business and Biodiversity Network (mining working group): our initial focus is on the Rustenburg region where the Magaliesberg biosphere would benefit from improved regional management. Various role-players from mining, other industries, and NGOs have been brought together to establish work programmes.
2. Hex-Elandscatchment forum: Sibanye-Stillwater coordinates the forum on behalf of the Department of Water and Sanitation. Through Sibanye-Stillwater9s assistance this has ensured the once non-functional forum now provides critical information to all catchment users, including industry, government and communities.
3. Bokamosa ba Rona agro-industrial project: Due to the complex interplay between water, land and air in both the mining and agricultural environments, the West Rand regional post-mining land- use project has resulted in a regional approach to mine land, air and water management. The project started with just Sibanye- Stillwater9s resources, but we have since assisted in the inclusion of adjacent mining companies for a holistic regional approach.

Through our various regional collaborations we aim to continuously improve upon our relationships with our adjacent landowners and water users to ensure a sustainable and climate change-resilient post- mining environment.

Sibanye-Stillwater supports the Boulder River Watershed Association

The Boulder River Watershed Association (BRWA) is a collaborative effort to improve the health of our land and water resources in the Boulder River basin of Sweet Grass County. It was founded over 20 years ago, when landowners in the basin partnered with Stillwater Mining Company, who provided the initial funding that established the group. Their vision: identifying and researching resource issues and concerns within the watershed; helping landowners and land managers implement innovative solutions; educating the public about the efforts of landowners in the valley to care for their natural resources.

Working with our USDA Natural Resources Conservation Service and the Montana Department of Natural Resources and Conservation, the BRWA completed a comprehensive stream assessment of the Boulder River and tributaries which served as the basis for five areas of positive impact, driven by five committees: water, riparian, forest, weed, wildlife and range.

BRWA commended Sibanye-Stillwater with this statement: Sibanye-Stillwater has provided to our association, which provides administrative and project support. Efforts undertaken or sponsored by the Boulder River Watershed Association have leveraged more than US$500,000 in funding to achieve projects that have totalled nearly US$3 million. Sibanye- Stillwater is a great example of how an industrial and resource extraction industry has benefited the Montana landscape by providing critical funding for resource conservation groups.

EU region and biodiversity

At Sandouville a biodiversity study close to the plant has been undertaken. At the Keliber lithium project, in Finland an environmental permit imposes certain requirements to monitor and protect stipulated species of flora and fauna. To monitor and protect these species Keliber lithium project is implementing a biodiversity management plan. For 2023, biodiversity activities included monitoring of protected species and restoring spawning ground for trout. During road construction culverts were equipped with shelves to allow otters safe passage under the road.

For more information on our actions to minimise our environmental impact, please refer to the 2023 Integrated report, www.sibanyestillwater.com/news-investors/report/annual

FOR MORE INFORMATION, CONTACT:

James Wellsted

Executive Vice President:

Investor Relations and Corporate Affairs

Email: [e-mail]

Website: www.sibanyestillwater.com

OUR VISION:

To be a leader in superior shared value for all stakeholders

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