Topco Scientific Posts Third-Highest Monthly Revenue in May; Revenue for First Five Months Exceeds NT$31.85 Billion, Setting Another Record High

Topco Scientific Co., Ltd. (TWSE: 5434), a leading integrated service provider of critical semiconductor materials, continued to benefit from robust demand driven by artificial intelligence and high-performance computing, which fueled strong shipments of advanced semiconductor materials. Following record-high revenues in March and April, Topco reported consolidated revenue of NT$6.54 billion in May, up 18.6% year-over-year and marking the third-highest monthly revenue in its history. Cumulative consolidated revenue for the first five months of 2026 reached NT$31.85 billion, representing a 17.6% increase compared with the same period last year.

By product category, semiconductor materials sales posted strong double-digit growth during the first five months of the year. Topco maintains a leading position in key advanced-process materials, including photoresists, FOUP, slurry, and quartz products. As semiconductor manufacturing continues to advance toward smaller geometries and more stringent qualification requirements, Topco's technological expertise and market positioning further strengthen its competitive advantages and reinforce the irreplaceable nature of its services. In wafer sales, demand from Taiwan's leading semiconductor foundries remained solid, supported by high utilization rates for advanced process capacity. Meanwhile, the environmental engineering business continued to contribute steadily as revenue from large-scale projects was recognized in line with construction progress, helping maintain overall revenue at historically elevated levels.

Topco continues to expand its presence in AI-related materials and integrated infrastructure solutions. In recent years, it has established semiconductor supply chain platforms across the United States, Japan, and Southeast Asia, while strengthening partnerships with leading Japanese material suppliers and building long-term trust-based business relationships. As the contribution from overseas operations and service-based revenue continues to increase, Topco is well positioned to further strengthen its strategic role within the rapidly evolving AI ecosystem.