Policy shift: from diamonds to diversified mining

Botswana’s government is deliberately steering the sector away from its historic reliance on diamonds. According to policy statements at the Future of Mining Summit in June 2026, the Ministry of Minerals and Energy has set a target to lift annual non-diamond mineral exploration spending to 150 million pula by 2029. Stronger geological mapping and modernised mineral data systems will support that target.

This exploration push sits within a broader Mineral Resources Development, Exploration, Exploitation and Value Chain Strategy. The strategy aims to deepen beneficiation and expand citizen participation across Botswana mining. New legislation and draft regulations introduce minimum beneficiation thresholds, mandatory citizen ownership stakes of up to 24% in qualifying projects, and preferential procurement rules for citizen-owned firms. Environmental rehabilitation is also being tightened. Mandatory financial guarantees for mine closure and restoration obligations are now part of the framework.

Regulators are strengthening licence renewal rules to curb speculative hoarding of exploration permits and push projects towards development. Vice President Ndaba Gaolathe has linked these moves to a wider economic strategy. That strategy uses mining capabilities to build industrial capacity in sectors such as energy, manufacturing and services, rather than leave value concentrated in raw mineral extraction.

The policy direction responds to recent macro-signals. African Development Bank data show Botswana’s economy contracted by 0.7% in 2025. Mining output fell 10.7% and mineral revenues dropped 23.4%, as diamond production declined 11.4%. That downturn has reinforced the case for a broader resource base — including copper, nickel and other critical minerals — alongside ongoing diamond output.

As reported by Business Tech Africa, Botswana is moving from a diamond-dependent mining system towards a diversified portfolio where copper and other minerals anchor new industrial and fiscal resilience. Investors tracking similar strategic pivots on the continent may also note Angola’s parallel push into diamonds, gold and critical minerals.

Khoemacau: the test case for Botswana’s new mining chapter

MMG’s Khoemacau copper mine now provides the main test case for the new strategy. MMG confirmed that its board has approved a 13 billion pula expansion programme, including pre-2026 spending. The plan is designed to lift annual copper production capacity to about 130,000 tonnes of copper in concentrate and more than 4 million ounces of silver. Company guidance and recent earnings calls show first concentrate from the expanded operation is targeted for the first half of 2028. Phase 2 construction is already advancing.

MMG has told investors the larger operation should benefit from economies of scale. Life-of-mine C1 cash cost guidance is narrowing and trending lower than earlier estimates, as throughput increases and silver credits improve. Independent industry coverage indicates the expanded mine could eventually reach production of around 200,000 tonnes per year if further phases are sanctioned. Current approved capacity stands at 130,000 tonnes.

Local reporting suggests the Khoemacau expansion will support several thousand construction jobs and more than 4,000 permanent positions over the life of the mine. Operating horizons extend well beyond 20 years under a licence that runs to 2035. The project is expected to anchor a cluster of engineering contractors, equipment suppliers, logistics firms and technical service providers around the copper belt, giving practical content to the government’s localisation agenda.

Khoemacau is being developed at the same time as the new local-content rules take shape. Minimum beneficiation thresholds and citizen equity requirements will apply across the value chain, from processing to procurement. If MMG and its partners can meet these obligations while keeping the project internationally competitive on cost and schedule, Khoemacau will become a reference model for future copper, silver and critical mineral investments in Botswana mining.

What does the policy-backed copper expansion mean for investors?

For institutional investors, Khoemacau’s expansion offers a clearer view of how Botswana intends to balance diversification, local value capture and investor appeal. The country continues to signal support for large-scale projects, evidenced by high-level backing for the mine’s 13 billion pula capital plan. Ongoing development of digital licensing tools and improved geological information also aims to reduce exploration risk.

At the same time, higher local-content requirements raise execution complexity. Beneficiation thresholds, citizen equity rules and stricter environmental guarantees will increase compliance costs. They also require more structured partnerships with domestic firms. However, these rules create space for long-term service revenues and joint ventures that can deepen project resilience and social licence.

Copper’s role in power networks, renewable energy and electric vehicles suggests long-run demand that aligns with Botswana’s broader economic strategy. If Khoemacau delivers on its production and cost targets under the new regulatory regime, Botswana will be better placed to attract follow-on investment in copper and other critical minerals.

Investors should now watch three signals: the pace of non-diamond exploration spending towards the 150 million pula target; the execution of Khoemacau’s expansion against its 2028 timetable; and the final form and enforcement of beneficiation and local-participation rules that will shape returns in Botswana mining over the next decade.

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