Mitsui Chemicals Plans $8.2 Billion Buy of Chip-Materials Maker JSR, Japan’s Biggest Chemicals Deal: Nikkei

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Japan’s Mitsui Chemicals plans to buy JSR, a maker of materials essential to producing computer chips, from state-backed fund Japan Investment Corp. for more than 1.3 trillion yen ($8.2 billion), Nikkei reported Wednesday, citing people familiar with the matter. If completed, it would be the largest acquisition ever in Japan’s chemicals industry.

Neither company has confirmed the report.

JSR is not a household name, but the modern world runs on what it makes. The company is a leading producer of photoresist – a light-sensitive coating that lets chipmakers print microscopic circuits onto silicon wafers. Without it, there are no advanced chips for phones, cars or AI data centers. That strategic importance is why Japan’s government-backed JIC took JSR private in the first place, and why a sale back into private hands is being watched across the industry.

For Mitsui Chemicals, the deal would be a bet that the chip boom has years to run – the same force behind AMD’s record results reported today and the data-center construction wave that became an issue in this week’s U.S. midterm elections. Buying JSR would give Mitsui a central position in the materials every chip factory must keep buying, rather than the chips themselves.

Consumers rarely see companies like JSR, but they feel them. The price and availability of everything from laptops to cars depends on steady supplies of the chemicals and coatings that make chips possible, and deals like this decide who controls that supply.

JBizNews Desk | New York

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