AEM, UMS, Frencken: A Margin and Risk Comparison

The AI buildout has pulled semiconductor spending higher for three years running. Singapore-listed suppliers AEM Holdings (SGX: AWX), UMS Integration (SGX: 558), and Frencken Group (SGX: E28) all feed into that demand. Their business models, though, are not the same.

AEM sells testing equipment. UMS manufactures precision components, mostly for Applied Materials (NASDAQ: AMAT). Frencken provides outsourced manufacturing across semiconductors, industrial equipment, medical devices, and analytical instrumentation. Each relies on a different customer base.

AEM's anchor is Intel (NASDAQ: INTC). The company has been working to diversify. In 2024 it announced a partnership with ASE Technology, a Taiwan-based chip assembler and tester. Intel still accounts for the bulk of AEM's revenue, a vulnerability that shows in its numbers.

UMS has the cleanest margin profile. Over the trailing 12 months it posted a net margin of 17.4%. AEM managed 6.5%. Frencken came in at 4.5%. UMS also maintains the longest dividend streak of the three, with uninterrupted payouts since at least 2010. Its trailing yield is roughly 1.2%. AEM only resumed its dividend recently, yielding about 0.14%. Frencken's yield is near 1.0%, paid without interruption since at least 2018.

On customer concentration, UMS depends almost entirely on Applied Materials. AEM depends on Intel and, now, ASE. Frencken's broad client base across multiple end markets buffers the company against a downturn in any single segment. That diversification has kept Frencken profitable for the past decade.

Intel carries an Alpha Score of 49 on the AlphaScala scale, a Mixed label that reflects uneven fundamentals. AEM's Alpha Score is 60, Moderate. Applied Materials scores 73, also Moderate. The differences in scores mirror the variance in customer quality and earnings stability across the three suppliers.

For an income-focused watchlist, UMS offers the highest yield and longest payout history. For growth with single-stock risk, AEM gives direct exposure to test-equipment demand tied to AI chips. Frencken sits somewhere in between, offering lower margins but less concentration risk.

The semiconductor upcycle has legs as long as AI infrastructure spending continues. Each company's specific customer ties will determine who benefits most. UMS's dividend streak dates to 2010. AEM's dividend resumed only this year. Frencken has paid one since 2018.

Disclosure: The author does not own shares of any companies mentioned.