Rand Merchant Bank (RMB), the corporate and investment banking arm of FirstRand, has launched Africa’s first nature-linked outcomes-based bond, an instrument that ties investor returns to measurable ecological restoration outcomes. Announced on April 1, 2026, the Cape water performance-based bond supports The Nature Conservancy (TNC) South Africa in removing invasive plants from priority water catchment areas, boosting streamflow into storage dams and securing vital water supplies for the Greater Cape Town region. The five-year, R2.5 billion senior unsecured bond, due 30 June 2031, was issued under FirstRand Bank's domestic medium-term note programme.
INNOVATIVE STRUCTURE TIES RETURNS TO IMPACT
Part of investors' returns is linked to verified project outcomes, specifically the hectares of invasive plants cleared and the resulting increase in river streamflow. Outcome payments are funded primarily by outcomes-based funders (OBFs), with TNC South Africa matching contributions through donor funding.
RMB described the deal as a global first: a capital-markets instrument issued by a commercial bank in which investor outcomes are tied directly to verified ecological restoration outcomes. FirstRand Bank acted as issuer, RMB as arranger and structurer, and the FirstRand Foundation as anchor outcomes-based funder; the International Finance Corporation was the lead investor with R1.6 billion, and FSD Africa Investments invested R234 million.
FIRSTRAND GROUP DRIVES COLLABORATION
The Development Bank of Southern Africa (DBSA) contributed a R50 million grant through its Green Fund.
The project is also expected to create jobs, particularly for rural communities, women and youth.
SCALING TO NATIONAL WATER PRIORITIES
The structure is designed as a replicable model. The bank said the bond enables sustained investment in restoring these critical landscapes and securing water supplies for the Greater Cape Town region. DBSA research estimates that South Africa's water sector needs R256 billion of investment a year to 2050, with a funding gap of R91 billion a year.
The Nature Conservancy South Africa is the project implementer.