William Koh, CEO and Managing Director of ALUMASTER, joins us to explore how a Sarawak-based aluminium solutions provider grew from a small local operation into one of East Malaysia’s most trusted names in high-quality windows, doors, and façade systems.

In an industry defined by tight margins, rising costs, and competition, ALUMASTER’s story is one of quiet resilience — built on craftsmanship, consistency, and a clear sense of purpose. From supply chain pressures to evolving building standards, William shares how the company has adapted, innovated, and positioned itself in Malaysia’s fast-changing construction landscape.

From sustainability and design innovation to regional expansion, we take a grounded look at how one homegrown brand continues to build growth, one project at a time.

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