Japanese semiconductor packaging materials leader Sumitomo Bakelite will invest about JPY 10 billion ($63.2 million) to add advanced chip packaging material lines at its Suzhou and Singapore plants, with new lines set to operate in fiscal 2030.
Sumitomo Bakelite holds roughly 40% of the global semiconductor epoxy molding compound (EMC) market, the top share in the segment. The expansion targets generative AI-driven data center demand. As GPU, memory, and power semiconductor integration and power density rise in AI servers, packaging materials face higher heat resistance and mechanical strength requirements, making solutions that dissipate heat and suppress warpage critical to chip reliability.
The Suzhou expansion is not isolated. Sumitomo Bakelite began producing semiconductor packaging materials in China in 1997, added lines in March 2022, and opened a new plant in 2025. This time it will build additional facilities within the new Suzhou plant, adding lines for molded underfill (MUF) encapsulants and compression molding granular encapsulants, lifting China capacity by about 30%. Granular encapsulant capacity will expand to about three times current levels.
Singapore moves faster, with new lines expected to start production by end of fiscal 2028. The staggered timelines reflect a phased capacity release across Southeast Asia and China.
In January, Sumitomo Bakelite also announced the acquisition of Kyocera's semiconductor chemical materials business for about JPY 30 billion, one of its largest deals ever. Kyocera brings advanced packaging materials for memory semiconductors, filling a gap in AI data center memory chip materials. Kyocera's plants in Kanagawa, Tochigi, Fukushima, and China will transfer to Sumitomo Bakelite.
Other Japanese materials firms are also moving in China. Nissan Chemical set up a semiconductor materials subsidiary in Zhangjiagang, Jiangsu, with about JPY 5 billion registered capital, producing anti-reflective coatings and multilayer materials for lithography. Nagase landed a high-purity semiconductor materials base in Xishan, Wuxi, designed for 35,000 tons annually of high-purity electronic chemicals including TMAH developer, with production planned for January 2028. Panasonic Industry is investing about JPY 7.5 billion in its Guangzhou plant to expand MEGTRON high-speed multilayer substrate materials for AI servers, starting April 2027, targeting roughly triple total MEGTRON capacity within five years.
ICgoodFind Summary: AI packaging demand is turning the materials supply chain into a capacity race. Sumitomo Bakelite's billion-yen bet locks in China and Southeast Asia supply, as Japanese materials makers shift from single-point expansion to systemic localization in China.
