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South African Start-Up SeaH4 Wins World’s Largest Green Business Competition

Local innovator beats 40 countries to claim top prize with algae-based fossil fuel replacement A South African start-up has put the country on the global climate innovation map, winning the prestigious ClimateLaunchpad Global Grand Final 2025 and claiming the €10,000 (approximately R200,000) top prize at the competition’s Vienna finale. SeaH4, a South Africa-based venture developing

4 December 2025 · Alexis Knipe · 2 min read