SK picks Doosan for SK Siltron deal

Dec 18, 2025, 08:57 am

		0
SK Group’s Seorin Building in central Seoul. / Source: SK

SK Group has decided to sell SK Siltron, the world’s third-largest semiconductor wafer maker with an enterprise value estimated at around 5 trillion won, to Doosan Group. The size of the stake sale is estimated at between 3 trillion and 4 trillion won. For SK, which has been actively pursuing portfolio rebalancing, the deal offers an opportunity to improve its financial structure and secure funds for future investments. Doosan, which is positioning semiconductors as a new growth engine, would significantly strengthen its competitiveness by completing the acquisition.

On December 17, SK said it had selected Doosan Corp. as the preferred bidder for the sale of its stake in SK Siltron and formally notified the company. Detailed terms, including the price, will be determined through negotiations, with a follow-up disclosure expected once details are finalized or within three months.

SK Siltron is a specialized semiconductor wafer manufacturer, ranking third globally by market share in 12-inch wafers. The stake up for sale is believed to be the 70.6% held directly and indirectly by SK Inc. It remains unclear whether the remaining 29.4% stake owned by SK Group Chairman Chey Tae-won will be included.

The sale is widely seen as part of SK Group’s ongoing rebalancing strategy. Through asset disposals, SK aims to strengthen financial soundness and focus resources on future growth businesses.

SK Siltron had been considered a potential divestment asset since early this year. Around June, five to six companies were reported to have conducted preliminary due diligence, but negotiations stalled. Doosan later emerged as the leading buyer after confirming it was reviewing a possible acquisition.

Doosan Group, meanwhile, has been seeking to compensate for last year’s decision to scrap a planned business restructuring through large-scale mergers and acquisitions. In recent months, it has announced a review of acquiring Germany-based construction equipment maker Wacker Neuson, and has continued to invest in semiconductors, including a decision in October to purchase nearly 200 billion won worth of semiconductor testing equipment.

#SK Group #Doosan Group #SK Siltron #semiconductor wafers #M&A