In 2025, Japanese chemical enterprises are facing multiple challenges such as rising production costs, shrinking domestic demand and intensified overseas competition. Leading companies including Sumitomo Chemical and Mitsui Chemicals have intensively promoted business structure optimization, setting off a transformation wave of "withdrawing from low-value-added sectors and focusing on high-potential areas".
     Enterprises have concentrated on divesting traditional chemical businesses, including capacity integration or shutdown of products such as ethylene, polyolefins and phenols, involving production bases in Japan, China, Europe and other regions. Maruzen Petrochemical ceased its own ethylene production, Asahi Kasei withdrew from four businesses including MMA monomers, and many enterprises shut down related businesses of their European subsidiaries.
    Meanwhile, enterprises have increased investment in high-value-added fields. Semiconductor electronic materials have become a hot investment area, and lithium battery materials, solid-state batteries, carbon fiber and other sectors have also received key investment. The investment regions cover India, Indonesia, the United States, etc., among which the projects in the U.S. market are prominent in scale and quality. This adjustment restructures the global chemical industry chain pattern, demonstrating the clear direction of Japan's chemical industry towards green and high-end transformation.

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