Micron Breaks Ground on ¥1.5 Trillion Expansion of Its Western Japan Memory Plant

*Micron Technology has started construction on a $9.3 billion addition to its existing factory in western Japan to increase output of advanced memory chips.*

The project covers a ¥1.5 trillion investment. Ground was broken on July 4, 2026. The work will enlarge the current site rather than create a new one.

The expansion targets production of advanced memory chips. No further technical specifications, timelines, or capacity targets appear in the announcement.

No statements from Micron executives, local officials, or competitors were released with the news. The company provided only the basic scope and cost of the project.

Why it matters

For chip buyers and supply-chain planners, the move adds concrete capacity inside Japan, a location already viewed as stable for advanced-node manufacturing. The scale of the spend shows Micron is willing to commit large sums to secure that position even as memory markets remain cyclical. Execution will determine whether the added output reaches customers on schedule or simply adds to industry-wide overcapacity.

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Sources:

• Bloomberg Technology

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