Environmental Stewardship
- 200MW solar plant commissions at TS Power Plant, NGM
- 824 ha land reclaimed and rehabilitated, exceeding target for the year
- 85% water reuse and recycle rate
- 16 white rhinos relocated to the Garamba National Park, DRC
The extraction of gold and copper provides the critical minerals for products from cars to currency, smart phones to solar panels. But like with all human activity, its extraction has an environmental footprint.
We are committed to managing this footprint, as responsible stewards of the many environments in which our mines operate globally. We work in partnership with local stakeholders, using policies and standards informed by global best-practices and with a holistic philosophy that binds environmental conservation to sustainable socio-economic development.
Our approach to the environment is codified in our Environmental Policy, with responsibility for implementation overseen by the Group Sustainability Executive and the Board. In 2024, all our operational mines were certified to the ISO 14001:2015 environmental management system, and for the sixth consecutive year our sites recorded zero Class 1Class 1 – High Significance is defined as an incident that causes significant negative impacts on human health or the environment or an incident that extends onto publicly accessible land and has the potential to cause significant adverse impact to surrounding communities, livestock or wildlife. environmental incidents.
Climate resilience
We are clear about the risks and opportunities from climate change facing our business and have programs in place to mitigate threats such as more extreme weather, and to leverage opportunities such as clean energy to power the needs of our mines and host communities.
At the heart of our approach to climate change is our Roadmap to Net Zero, which is an emissions reduction plan grounded in technological realities and commercially-sound ambition. Originally published in 2020, we are currently updating the plan to take into account our growing operational footprint, changes to our mine plans and the operational lives of our assets, most notably the significant expansion at Lumwana and the new Reko Diq operation.
The nature of mining means over an asset’s life there are many variables in grades, hauling distances by depth and distance, rock type and energy needs, which results in non-linear emissions profiles. In 2024 we saw an uptick in Scope 1 and 2 emissions, due predominantly to the Porgera restart, Pueblo Viejo expansion ramp up, and maintenance at TS Power Plant (NGM) in 2023. Much of the reduction in direct emissions is driven by our continued investment in renewable energy, which in 2024 included an expansion of solar power at Loulo-Gounkoto (Mali), Kibali (DRC) and NGM (US) and an allocation to build 150MW of solar capacity at Reko Diq. We also piloted innovations such as the use of electric trucks, and the fitting of lightweight aluminium buckets to dump trucks to investigate opportunities for further reduction in diesel usage and thereby emission reductions.
Since 2019 we have driven the installation of over 4.4 million MWH of renewable energy capacity across all our regions — enough to power half a million US homes for a year, with most sources providing renewable power to remote communities, as-well as mining operations. We continue to refine the measurement of our Scope 3 emissions and are working with suppliers to improve data quality and accuracy of emissions reported.
“Kibali is not only the biggest gold mine in Africa, it is fast becoming a model for renewable energy in African mining. Backed by three hydropower stations and now constructing a 16MW solar plant — all built with extensive use of local suppliers — the mine will be able to run on 100% renewable energy for at least six months, and at levels of 85% for the rest of the year.”
Jerry Zozo, Environmental Manager, Kibali
Jerry has worked at Kibali since 2013, when commercial production at the mine started.
We also understand the growing risks from climate change to our sites, and their neighboring communities, including the likelihood of more frequent and severe storms and flood events, droughts and increased water stress.
To help manage climate risks we conduct climate change risk and vulnerability assessments (CCRVA) as part of our ESIA (Environmental and Social Impact Assessments) updates, and for any significant expansion or new project. We have also undertaken a climate scenario analysis in line with the recommendations of the TCFD and considered the range of risks, and potential mitigating actions for our Tier One sites. Further details of this are in our Sustainability Report 2023.
Water stewardship
Responsible water management is a top priority for our business. We seek to conserve and protect high quality water resources wherever we operate. In 2024 we reused or recycled 85% of all water used to help achieve this, exceeding our ambitious target of 80%.
We are also deeply committed to considering other water users through using basin-wide water balances. One of the first milestones of our feasibility work at Reko Diq has been to undertake hydrological studies to find suitable water sources for the project, all the while building water infrastructure that provides local communities with potable water. In Tanzania we are expanding our potable water infrastructure to reach more households in the 11 villages around our North Mara mine.
Each mine has its own site-specific water management plan, tailored to its own operations and ecosystem. Our water disclosure reports against the market-leading ICMM Water Accounting Framework and we also host participatory monitoring programs for community members across many sites, especially where water is a key community concern.
Our commitment to responsible water use is set out in our Environmental Policy and further details of our water management can be found in our Sustainability Report.
Waste and tailings management
Our mines produce various waste materials — including tailings, waste rock, and non-processing waste — and we are committed to dealing responsibly with this waste, and where possible to turn operational waste into economic value.
Our approach to waste management is codified in our Environment Policy, and we follow a rigorous approach to the management of all hazardous chemicals and reagents. We are aligned with the ICMM position statement on Mercury Risk Management, are a signatory to the International Cyanide Management Code (ICMC) and a member of the International Cyanide Management Institute (ICMI).
The most high-profile waste management issue for the mining sector is the management and storage of tailings (ie processed mineral residue). Our comprehensive approach to tailings management is set out in our group-wide Tailings and Heap Leach Management Standard and we are committed to the requirements of the Global Industry Standard for Tailings Management (GISTM). We were a member of the industry representatives that worked with the ICMM and UN-backed Principles of Responsible Investment to help develop the standard.
We currently manage 18 active and 43 closed tailings facilities and, in line with GISTM requirements, we have ensured all 14 facilities categorized as ‘Extreme’ or ‘Very High consequence’ are already in conformance with the standard. In 2024, we continued work to ensure all other facilities will conform by the end of 2025. This included independent reviews in 2024 at Carlin (Goldstrike and Gold Quarry), Cortez and Phoenix mines, Jabal Sayid, North Mara, Loulo-Gounkoto, Kibali, Tongon, Lumwana, Bulyanhulu and Pueblo Viejo as well as the Giant Nickel, Bicroft, Mercur, Buzwagi, El Indio and Tambo closure sites. We also moved five TSFs into Safe Closure during 2024, bringing our total facilities in Safe Closure to seven with a further five TSFs planned in Safe Closure during 2025.
Further details regarding our approach to tailings management including an inventory of our facilities are available on our website.
Protecting natural capital
Our standalone Biodiversity Policy underlines our commitment to play a positive role in the protection of biodiversity and to use nature conservation as a tool to help drive community development.
We have a Biodiversity Action Plan at all sites and an ambition to have a net neutral impact on any Key Biodiversity Features (KBFs) identified at our sites, as well as to make a positive contribution to the conservation of high-risk biodiversity features in the regions in which we operate.
Every mine exists in, and depends on, a unique habitat and ecosystem with different granular and complex conservation priorities and it is imperative that we measure both our impacts and our contributions to biodiversity. We have developed our own biodiversity measurement tool – the Biodiversity Residual Impact Assessment (BRIA).
BRIA adds to information available from global data sources with on-site habitat mapping, satellite imaging and other granular studies to set specific KPIs that will protect the most important KBFs at each site. The tool was piloted in 2024 at several sites and is being rolled out globally.
In 2024, we continued to support critical national conservation projects in some of our host countries including the protection of sage-grouse habitat in Nevada, REDD+ work in Lumwana and the Garamba National Park (DRC). The latter saw the introduction of 16 rhinos in 2023, and we plan to introduce a further 64 during 2025, which will be enough to foster a self-sustaining population in the park.
In 2024 we reclaimed and rehabilitated 824 hectares of land in total on site and Kibali continues its annual project to plant 10,000 trees each year in and around the mine. As part of this initiative, some 4000 indigenous trees were planted in the Avokala Host Site during the year.
Sustainability is closing safely
How we close our mines is more than just a phase — it's a fundamental part of how we design and operate the mine and how we deliver long-term value to all stakeholders.
This work aims to leave a safe and stable closed site while also returning value to the business by removing long-term liabilities and environmental risks. A continued focus is to implement solutions that remove the need for long-term active water treatment in our North American legacy portfolio.