Japan’s Sumitomo Bakelite Expands China Chip Packaging Capacity Amid AI Demand

BEIJING — Japanese semiconductor materials maker Sumitomo Bakelite plans to expand production of advanced chip packaging materials in China and Singapore, highlighting how demand for artificial intelligence hardware is creating opportunities across the semiconductor supply chain.

The Tokyo-based company will add production lines for mould underfill materials and compression-moulding granules at facilities in Suzhou, Jiangsu province, and Singapore. The company announced the plan on Friday, according to the South China Morning Post in a report published on October 11.

Sumitomo Bakelite did not disclose the investment amount. The expansion is expected to roughly double its current production capacity for mould underfill materials and triple capacity for compression-moulding granules, based on the company's statement cited by the newspaper.

The new production lines in Suzhou will form part of an expansion of an existing factory completed in 2024. Production is scheduled to begin in fiscal 2030. The Singapore lines, which will also be installed at an existing facility, are expected to start operating at the end of fiscal 2028.

The planned timetable indicates that the company is preparing for longer-term demand rather than seeking an immediate increase in output. Semiconductor manufacturing projects often require extended planning, equipment installation, process qualification and customer approval before new capacity can contribute fully to supply.

Advanced packaging has become increasingly important as chipmakers seek greater computing performance and energy efficiency. As AI systems require more processing power and memory bandwidth, manufacturers are exploring ways to connect and package multiple semiconductor components more efficiently.

Packaging materials help protect semiconductor components and support their electrical and physical performance. Mould underfill materials and compression-moulding compounds are used in specialized packaging processes, making material quality and consistency important to semiconductor reliability.

The expansion also underscores the continuing importance of regional manufacturing networks. Although semiconductor policy debates often focus on chip fabrication and access to advanced processors, the industry depends on a much broader ecosystem that includes materials, equipment, packaging, testing and logistics.

China remains a major manufacturing base for electronics and semiconductor-related industries. Suzhou, in particular, is part of the Yangtze River Delta industrial region, which has a dense network of electronics suppliers and manufacturing facilities. Singapore, meanwhile, is an established regional hub for semiconductor and electronics production.

For Sumitomo Bakelite, adding capacity in both locations may help it serve customers across Asian supply chains. The announcement does not specify which customers will use the additional output, and it does not establish how much of the new capacity will ultimately be allocated to AI-related chips.

The investment comes amid a global race to expand AI computing infrastructure. Demand for advanced processors, high-bandwidth memory and associated packaging technologies has increased the strategic importance of suppliers that can provide specialized materials at scale.

For investors, the key questions will include whether AI-related demand remains strong enough to absorb the planned capacity, how quickly the new lines are qualified by customers, and whether increased output translates into higher sales and margins. The expansion is a sign of confidence in the long-term market, but the scheduled start dates mean its commercial contribution will emerge over several years.