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Sunon: A 45-Year-Old Fan Maker Adapts to the AI Cooling Era

When the AI server industry began standardizing on liquid cooling in 2025, Sunonwealth Electric Machine Industry, the Kaohsiung-based fan and motor specialist better known as Sunon, looked like the cooling supply chain’s most exposed name. A year later, that reading has aged badly. Founded in 1980 and listed on the Taiwan Stock Exchange under ticker 2421, Sunon has used its fan and motor heritage as a launchpad rather than a millstone, building out a credible liquid-cooling portfolio while its legacy business continues to grow.