Micron Breaks Ground on $9.3 Billion Hiroshima Expansion, Aiming to Bolster AI Memory Production

Micron Technology has officially broken ground on a major expansion of its Hiroshima plant in Japan, investing roughly $9.3 billion to boost output of advanced memory chips used in artificial intelligence systems. Seoul Economic Daily reported that the company held a groundbreaking ceremony for the 1.5 trillion yen (14.2 trillion won) project, which will focus on producing high-bandwidth memory (HBM) and other next-generation DRAM.

Seoul Economic DailyMicron to Invest 14 Trillion Won in Japan's Hiroshima to Expand AI Memory Output

Japan is actively backing the expansion as part of a broader strategy to challenge South Korea's dominance in the AI memory chip market. According to upi.com, the project "aims to position Japan as a production hub for AI memory chips." The site also noted that the expansion is intended "to challenge South Korea's current dominance in the HBM market," a sector currently led by Samsung and SK Hynix.

upi.comJapan backs Micron's $9.3 billion Hiroshima expansion to challenge South Korea's AI memory chip dominance

HBM is a critical component for AI servers, enabling faster data processing for training and inference workloads. en.bloomingbit.io reported that the Hiroshima expansion will "add HBM and other AI memory output," underscoring the growing demand for memory chips tailored to AI applications.

en.bloomingbit.ioMicron Commits $10 Billion to Hiroshima as Memory Makers Ramp Up AI Chip Capacity

The investment varies slightly across reports: en.bloomingbit.io put the figure at $10 billion and 1.5 trillion yen, while upi.com cited $9.3 billion. Seoul Economic Daily also pegged the investment at 1.5 trillion yen, converting to 14.2 trillion won. The discrepancy likely reflects currency fluctuations and rounding. Japan's backing includes financial incentives and policy support to secure advanced semiconductor manufacturing on its soil.

This move underscores the escalating global race to produce AI memory chips, with governments in Japan, South Korea, and the United States all vying to attract leading memory makers. Micron's Hiroshima expansion is expected to begin commercial production within the next few years, adding capacity that could reshape the competitive landscape of the HBM market.