Sony and TSMC are in talks to jointly invest $6.4 billion in a semiconductor manufacturing plant in Japan, according to reporting from Bloomberg and Nikkei. The facility would be built in Kumamoto Prefecture and is expected to begin production in 2029.
The investment represents a significant commitment to advanced chipmaking in Japan at a time when both the country and the U.S. have prioritized onshore semiconductor capacity. Japan has offered subsidies to chip manufacturers willing to establish or expand production domestically, as part of a broader effort to reduce reliance on Taiwan for critical components. TSMC, which operates fabs in Taiwan and Arizona, has faced sustained pressure from Washington and Tokyo to diversify its footprint.
Sony has long been a major supplier of image sensors to smartphone makers and other device manufacturers. The company also produces camera sensors for automotive and industrial applications. A dedicated advanced fab in Japan would allow Sony to expand capacity while keeping production closer to major customers in the region.
TSMC is the world's largest contract chipmaker by revenue and capacity. The foundry operates multiple facilities across Taiwan and has committed roughly $40 billion to U.S. expansion over the next decade, including two Arizona fabs already in production and a third under construction. A joint venture in Japan would mark TSMC's first manufacturing presence there.
The talks follow similar regional investments by chip manufacturers. Samsung has announced plans to expand in South Korea, while Intel has pursued U.S. manufacturing grants. Japan's subsidy programs have drawn commitments from multiple companies seeking to hedge concentration risk in Taiwan.
The proposed plant would represent roughly 11 percent of Sony's current annual capital expenditure and align both companies with industrial policy goals across the Asia-Pacific region. If the talks conclude as planned, construction could begin within the next year to meet the 2029 target.
The timeline and subsidy structure will determine whether this deal closes or faces delays common to large cross-border manufacturing projects. Tokyo's approval of the investment amount and any Japanese government support remain the key variables to watch.
