en.Wedoany.com Reported - China's Dinglong Corporation disclosed an announcement stating that its holding subsidiary, Wuhan Dingze New Material Technology Co., Ltd., has successively achieved three significant breakthroughs in the field of semiconductor CMP polishing fluids, involving large silicon wafer fine polishing fluid, cerium oxide polishing fluid, and TSV polishing fluid for advanced packaging. The related products have already secured customer orders, further refining the supply system for high-end CMP polishing fluids in China.
This progress is concentrated in three specific areas. In terms of large silicon wafer fine polishing fluid, the product successfully passed stringent verification and obtained orders, officially entering the 12-inch monocrystalline silicon wafer manufacturing process. This signifies that the company's polishing fluid business has extended upstream from back-end processing of semiconductor devices to the front-end manufacturing process of large-size silicon wafers, a field long dominated by foreign suppliers with a low level of domestic substitution.
The cerium oxide polishing fluid recently passed the full-process assessment of a domestic storage chip enterprise in China and has begun mass supply, entering the stage of large-scale delivery. This material is an indispensable consumable in the manufacturing of mainstream memory devices such as 3D NAND, DRAM, and HBM, serving core process steps like shallow trench isolation and inter-layer dielectric. Previously, this market share was also firmly held by overseas manufacturers. From tackling abrasive particle technology to achieving a fully domestic supply chain for the polishing fluid, Dinglong accomplished this in just one year.
The TSV polishing fluid for advanced packaging has also successfully passed inspection by leading domestic packaging customers in China, enriching the domestic supply options for high-end CMP polishing fluids.
The combined domestic market space for these three types of polishing fluids in China exceeds 1 billion yuan, and the current domestic substitution rate remains low. In terms of manufacturing capacity, the company has established a polishing fluid production line at its Wuhan headquarters with an annual capacity of 5,000 tons, as well as a production base in Xiantao with an annual capacity of 10,000 tons of CMP polishing fluid and 10,000 tons of supporting nano abrasive particles. This ample capacity reserve provides support for rapid future volume ramp-up.
On the performance front, in the first quarter of 2026, Dinglong Corporation achieved operating revenue of 1.020 billion yuan, a year-on-year increase of 23.82%; net profit attributable to shareholders of the parent company was 251 million yuan, a year-on-year increase of 77.99%. The comprehensive gross profit margin for the quarter was 54.95%, an increase of approximately 25% quarter-on-quarter.
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