Singapore's green-energy push draws climate-tech startups

Nikkei Asia reports that Singapore's green-energy goals and funding network are drawing climate-tech startups. Aether Fuels raised $15 million in December 2025 for a commercial-scale sustainable aviation fuel plant, with operations targeted for 2028. The government aims to require a 1% fuel blend for flights departing Singapore from 2027. Alterno, founded in Vietnam and now headquartered in Singapore, develops sand batteries that store energy as heat.