Yankey Engineering backlog hits record NT$57.1 billion as Kumamoto fab work looms

Yankey Engineering is sitting on more booked work than at any point in its history. The Taiwanese cleanroom specialist reported an unrecognized order backlog of NT$57.1 billion as of the end of September 2026.

The company also expects one of its newest wins, a subcontract tied to a second wafer fab in Kumamoto, Japan, to start contributing revenue from 2027.

A backlog that keeps climbing

The September figure tops Yankey’s previous high-water mark of NT$55.3 billion, set at the end of 2025.

The company expects the number to keep rising. Yankey projects its backlog will reach approximately NT$63 billion by the end of October 2026, with talks on additional potential projects still underway.

The current quarter suggests the kitchen is already slammed. Yankey posted third-quarter 2026 revenue of NT$14.65 billion, up 163.9% year-on-year. Net profit came in at NT$1.745 billion, a 137.3% jump from the same period a year earlier.

For the full year, Yankey expects revenue to surpass NT$35 billion. That would represent growth of more than 70% compared with the prior year. The company credits sustained demand from the expansion of AI-driven semiconductor projects.

The Kumamoto bet and the JUcan deal

The Kumamoto project is the headline piece of the backlog. Yankey holds the subcontract for cleanroom and MEP systems at the second wafer fab there.

The project is linked to a leading foundry customer’s Phase II buildout. It marks Yankey’s first move into front-end process projects in Japan.

In August 2026, Yankey acquired a 51% stake in JUcan, a deal that gave it local licenses and a workforce.

Revenue from Kumamoto is expected starting in 2027, so the project sits in the backlog for now rather than on the income statement.

Overseas ambitions and the Micron precedent

Yankey has been working to reduce its reliance on its home market. Overseas revenue accounted for 14.3% of total revenue in the third quarter.

The company is pushing into markets including the US and Southeast Asia. Japan now joins that list with a project of real scale.

Among Yankey’s major recent projects is a turnkey contract for Micron’s Tainan memory fab, valued at more than NT$20 billion. Yankey delivered the cleanroom services for that project by August 31, 2026.

Yankey trades in Taiwan under the ticker 6691.TW. It positions itself as a cleanroom contractor that also offers full EPC turnkey services, meaning engineering, procurement and construction bundled into a single contract.