M&A

APS buys transformer equipment maker UPI for ₩18B to ride AI power demand

What's the deal? APSDealroom has a profile for this one. Try Dealroom → has agreed to acquire UPIDealroom has a profile for this one. Try Dealroom →, a maker of automation equipment for transformer manufacturing, for ₩18 billion in cash. Its board approved the purchase of 30,000 UPI shares on July 7, giving APS a 100% stake. The deal is set to close on July 31.

What does UPI do? Founded in 1988, UPI develops and supplies automation machinery used in transformer production — including cut-to-length (CTL) machines, foil and coil winders, E-stacking robot systems, and slitting machines. Its equipment handles core processing, winding, and stacking. UPI holds a 95% share of South Korea's CTL market.

Why now? Transformer demand has surged on the back of AI data centre investment, ageing grid replacement, and expansion of 765kV ultra-high-voltage transformers. Global transformer makers are adding capacity across the US, Europe, and the Middle East, lifting demand for the manufacturing equipment needed to build new lines.

What's the endgame? The acquisition puts APS into the transformer-equipment investment cycle, positioning it to supply core-processing, winding, and stacking automation gear as manufacturers scale up. The purchase price equals 8.2% of APS's ₩218.5 billion in equity.

What's the strategic case? APS called UPI "the only domestic company specialising in core transformer manufacturing equipment," describing the market as one with high entry barriers built on design and control technology, customer-specific process experience, and long-term supply records. It added that many similar domestic firms shut down or exited during past downturns.

The signal: An APS official said the company had "newly secured a power infrastructure equipment portfolio" and would work to "protect the domestic transformer manufacturing equipment supply chain while accelerating our push into the global niche equipment market." The deal reflects how the AI-driven power buildout is pulling investment down the supply chain, into the machines that make the machines.

Read more: thelec.kr

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