After undergoing cyclical adjustments, the global semiconductor industry is set for a new wave of expansion in 2026. While the heating up of wafer fabrication and packaging testing continues, the boom in the upstream equipment parts supply chain is more subtle yet equally explosive. Latest industry data shows that in the first half of this year, the global trade volume of precision cast parts for semiconductors increased by over 27% year-on-year, with the Asia-Pacific region serving as the core engine of this growth. From the chambers of etching machines to the gas distribution plates of thin-film deposition equipment, these seemingly minor metal castings are quietly reshaping the global chip trade landscape.
Precision Castings: The Invisible Pillars of Semiconductors
In the semiconductor manufacturing process, the precision cast parts inside the equipment directly determine the sealing, corrosion resistance, and thermal stability of the reaction chamber. Taking advanced etching equipment as an example, its core chamber is typically made of high-purity aluminum alloy or stainless steel precision casting, with surface roughness that must be controlled below the micrometer level, and it must withstand the extreme environment of plasma. These castings not only demand stringent material formulas but also require control over defects such as shrinkage and porosity during casting, making the technical barrier far higher than ordinary industrial castings.
According to the latest report from the Semiconductor Equipment and Materials International (SEMI), the global semiconductor equipment market size is expected to exceed $120 billion in 2026, with approximately 12% of the cost coming from metal components. As wafer fab capital expenditures accelerate again, especially with the construction of new fabs in China, the United States, Europe, and Southeast Asia, the procurement volume of equipment parts is showing explosive growth. Precision castings, as the "skeleton" of the equipment, have seen the stability and efficiency of their supply chain become a strategic focus for major equipment manufacturers.
Surge in Orders for Asia-Pacific Casting Companies, Accelerating Capacity Expansion
Currently, the main production bases for global semiconductor equipment precision castings are concentrated in Japan, South Korea, Mainland China, Taiwan, and emerging markets in Southeast Asia. Japan excels in high-end stainless steel casting, serving leading equipment makers like ASML and Tokyo Electron; Mainland China and Taiwan have advantages in aluminum alloy castings and cost control; while Southeast Asian countries such as Vietnam and Thailand are attracting multinational casting enterprises to set up new factories due to tax incentives and labor costs.
Data monitored by OceanRing Asia-Pacific Financial indicates that in the first half of 2026, the average order backlog for major precision casting companies in Asia has extended to over 9 months, with some leading firms exceeding one year. To meet demand, several companies have announced expansion plans. For instance, A Casting Group (pseudonym) in Japan announced in July that it would invest 20 billion JPY in Kumamoto Prefecture to build a new intelligent casting workshop dedicated to producing ceramic-based precision castings required for Extreme Ultraviolet Lithography equipment. Concurrently, several specialized and innovative casting enterprises in the Yangtze River Delta region of China have signed long-term supply framework agreements with leading domestic semiconductor equipment companies, locking in capacity for the next three years.
Trade Flows: From Unilateral Exports to Regional Synergy
It is worth noting that the trade flow of precision castings is trending towards regionalization and synergy. Previously, high-end castings were mainly supplied by Japan and Germany, but the proportion of intra-Asia trade has significantly increased. Trade data from the first half of 2026 shows that South Korea's imports of semiconductor equipment castings from China increased by 41% year-on-year, and Malaysia, as a major hub for packaging and testing, has also driven exports from Thailand and Singapore due to its demand for precision castings. Furthermore, although local manufacturing driven by the U.S. CHIPS Act has boosted domestic casting demand, it still relies on Asian suppliers in the short term, leading to a 23% growth in air freight of castings from Asia-Pacific to North America.
Green Transition and Production Bottlenecks: Coexisting Challenges and Opportunities
While the industry is rapidly advancing, production bottlenecks are becoming increasingly apparent. Precision casting is a high energy consumption and high emission industry, and as global carbon tariffs intensify, casting enterprises are forced to upgrade environmental protection facilities. The transition period for the European Carbon Border Adjustment Mechanism (CBAM) has arrived; starting in 2026, some precision castings entering the EU market will incur additional carbon costs. This compels Asia-Pacific enterprises to increase environmental investments, adopt electric furnaces to replace traditional coal-fired furnaces, and reduce energy consumption through waste heat recovery technology.
Another major challenge is the shortage of highly skilled high-end workers. The mold design and casting processes in precision casting rely on experienced engineers, but the aging workforce in Japan and South Korea, coupled with insufficient technical training in China and Southeast Asia, has led to a widening talent gap. To address this, several universities in China are collaborating with industry associations to offer specialized precision casting courses, while Thailand has introduced the German dual vocational training system in an effort to narrow the technical talent gap.
Technological Iteration: The Integration of 3D Printing and Smart Casting
Faced with complex shapes and demands for rapid delivery, multiple companies are beginning to combine 3D printing with traditional casting. Using additive manufacturing to create wax patterns or ceramic shells for investment casting can reduce the development cycle for small-batch complex castings by 40% and increase material utilization to over 85%. In June 2026, a Taiwanese casting company successfully used sand casting 3D printing technology to manufacture an 800-kilogram high-temperature alloy cavity for a silicon carbide equipment manufacturer, meeting automotive-grade requirements and becoming an industry benchmark case. Smart sensors and AI quality inspection systems are also gradually being adopted, increasing the detection rate of casting defects from 90% to 99.5%.
Future Outlook: Trade Growth Will Continue, But Geopolitical Risks Must Be Watched
Looking ahead to the second half of 2026 and 2027, with the increase in global wafer fabrication capacity utilization and the popularization of advanced packaging technology, the compound annual growth rate (CAGR) for precision castings in semiconductor equipment is expected to remain above 15%. Southeast Asia and South Asia will become new growth poles, and India has also announced the construction of its first semiconductor equipment parts park, aiming for the localization of key castings before 2028.
However, geopolitics remains the biggest variable. If the United States further expands export controls, it may affect the supply of equipment parts to China, forcing China to accelerate domestic substitution. Conversely, technological breakthroughs by Chinese casting enterprises could change the global competitive landscape. As one analyst stated, "Precision castings, though small, are the final puzzle piece for the self-reliance of semiconductors." For investors, focusing on Asia-Pacific casting enterprises with high-end material R&D capabilities and overseas production layouts will allow them to share in this structural dividend.
OceanRing Asia Pacific Finance continuously tracks every pulse point in the cross-sectoral fields of the semiconductor industry. The surge in precision casting trade is a vivid reflection of the deep integration between semiconductors and the metal manufacturing industry, and another milestone in the restructuring of the global high-tech supply chain.
