According to the French Treasury's economic service, sustainable debt issuances across Africa could reach $13 billion in 2026 — a potential record, driven by an unprecedented convergence between global ESG institutional demand and African states seeking concessional financing. A dynamic that signals a continent reinventing its funding models.
Global ESG demand meets African supply
African green, social and sustainable bonds have been growing since 2021, but 2026 may mark an inflection point. European pension funds and institutional insurers, subject to increasing ESG reporting obligations, are actively seeking African assets that meet their criteria. At the same time, countries like Mozambique, Namibia and Zambia — which are preparing to monetise their natural resources — are structuring more sophisticated financing instruments to capture this interest.
Zambia has set a target of 7% average growth through 2029, with public expenditure reaching 182.3 billion ZMW in the first eight months of 2026. An ambitious trajectory that requires structured and transparent external financing.
Angola and Namibia: two models of anticipation
Angola illustrates the scale of capital at stake in the extractive sector: nearly €85 billion has been invested in its oil sector over the past nine years, with €70 billion more projected through 2030. The oil windfall allows the country to refinance its debt on more favourable terms, while also beginning the long-term economic diversification that is essential for its future.
Namibia has taken a different approach: the Welwitschia sovereign fund is actively expanding, before petroleum revenues even begin to flow. This model of "pre-sovereign savings" is now cited as a blueprint for other African countries in the pre-production phase of hydrocarbon development, particularly in Mozambique and Uganda.
Kinshasa's mega-project: $9 billion backed by mining assets
In the Democratic Republic of Congo, a tram project for Kinshasa — valued at $9 billion — would be financed through mining assets. If this complex structure materialises, it would be one of the largest urban infrastructure projects ever launched on the African continent, and a real-world test of new hybrid financing models (natural resources + project debt).
Why it matters
For Indian Ocean economies — Mauritius, Seychelles, Madagascar — that are themselves seeking to diversify their funding sources and attract long-term capital, Africa's sustainable debt dynamic offers valuable lessons. The $13 billion expected in 2026 proves that global appetite for the continent's assets exists, provided the structures are solid, guarantees are credible and governance is transparent. A lesson directly applicable to markets across the sub-region.
Source: French Treasury — Economic Briefs on Southern Africa and Central Africa, week of September 28 to October 2, 2026.