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Responsible mining in Africa demands multidisciplinary teams

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Investing in more renewable energy has resulted in an increased demand for copper, a natural resource that is used abundantly in the manufacturing of renewable energy sources. Image credit: Leon Louw for WhyAfrica

Responsible mining in Africa demands multidisciplinary teams

As the mining sector gathers again for the 2023 African Mining Indaba, there is likely to be both excitement and apprehension in the air.

Global trends toward decarbonisation are raising demand expectations for battery minerals, and geopolitical tensions suggest that Africa may become more of a focus for sourcing these critical commodities. At the same time, the changing landscape of regulations, best practice and public perception makes for a complex environment to navigate.

“Investors in Africa will want to harness the potential of commodity demand,” says Andrew van Zyl, incoming Managing Director of SRK Consulting (SA). “However, there are growing expectations from host countries and end-customers alike on how mining is conducted, and benefits are shared,” he says.

Adapting to integration and climate change (Responsible mining in Africa  demands multidisciplinary teams)

The mining industry’s journey is increasingly demanding the integration of disciplines in planning, operating, and closing mines.

Project teams need to be pursuing their engineering solutions with early-stage input on pressing issues like Environmental, Social and Governance (ESG) risks, water stewardship, climate action and energy efficiency.

Mining companies must not only pay more attention to mitigating their own impacts by decarbonising their operations but must also be adapting to the inevitable effects of climate change.

“Early gains in decarbonisation include the move by many South African mines toward developing their own solar or wind generating capacity. Alternatively, they are partnering with energy providers, or even broadening their corporate mandates to acquire businesses specialised in renewable energy,” says Van Zyl.

“The replacement of on-mine technologies that run on fossil fuels, however, could take longer. This was in part due to the complex supply chain alterations that would be demanded by new technology – from battery electric vehicles to hydrogen powered trucks. An acceptable level of confidence is required in any innovation, as this would affect the cost and rate at which the ore can be extracted – and therefore underpins the ore reserve declaration.”

Managing the water risk (Responsible mining in Africa demands multidisciplinary teams)

“Management of water poses several growing risks for the stability of mining, not just in water-scarce countries. Sufficient supply of water is just one aspect of a broader challenge,” says Peter Shepherd, Partner and Principal Hydrologist at SRK Consulting.

Some mining areas will become more drought-prone due to climate change, and there is a general trend to use less water and recycle as much as possible.

“It should be remembered, though, that mines are part of a natural and social ecosystem, where they will increasingly compete with other users who share their water catchment,” says Shepherd.

“Engagement and collaboration therefore become as important as good engineering to the future sustainability of a mining operation.”

This has led to the gradual embrace by the mining sector of water stewardship principles, which emphasise that mines need to look beyond their on-site water management strategies to a consideration of all stakeholders in the respective catchment area.

Concerns now include human rights (Responsible mining in Africa demands multidisciplinary teams)

ESG concerns have broadened to include the impact of mining and other industrial projects on human rights – with financial institutions requiring more detailed from borrowers regarding their impacts in this respect.

“Many segments of society have become increasingly mobilised around human rights, labour practice and anti-corruption measures,” says Dr Vidette Bester, Senior Social Scientist at SRK Consulting.

“This has raised the potential for stakeholder concerns to boil over into the serious disruption and delays, and even collapse of projects.”

Tailings management and people (Responsible mining in Africa demands multidisciplinary teams)

This greater social involvement has also been witnessed in the field of tailings management, especially following recent fatal tailings dam failures.

According to Bruce Engelsman, Principal Engineer at SRK Consulting, responsible tailings management is really all about people – particularly the protection of vulnerable communities.

“As the Global Industry Standards on Tailings Management (GISTM) have further raised the bar for mine safety, the mining sector is working hard towards GISTM compliance,” says Engelsman.

“The GISTM emphasises the integration of disciplines, such as specialised tailings, water and civil engineers, as well as practitioners in fields such as geochemistry and environmental and social impact assessment.”

Engelsman says that the highly technical nature of tailings management makes it a good example of how SRK harnesses diverse talents into its teams – for soil mechanics and water management to ESG and legal liability.

SRK’s exploration tools (Responsible mining in Africa demands multidisciplinary teams)

As part of its innovation strategies, SRK Consulting’s sister company SRK Exploration Services (SRK ES) has also developed a new tool to assist companies in valuing, managing, and forecasting their exploration.

John Paul Hunt, principal exploration geologist at SRK ES, explains the significance of M-VAP – or Management & Valuation through Absolute Prospectivity.

“M-VAP replaces traditional relative prospectivity with a quantified absolute prospectivity that estimates the probabilities of making a discovery of deposits of different magnitude within an area of interest,” says Hunt.

“These probabilities can then be used within a decision tree model to assess if the estimated future value of potential discoveries warrants exploration activity,” Hunt concludes.

Responsible mining demands multidisciplinary teams

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Responsible mining demands multidisciplinary teams

 

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AgricultureEnvironmental Management & Climate ChangeEnergyESGInfrastructureMiningPolitical EconomyTourism and ConservationWater Management