Beijing Worldia Diamond Tools Co., Ltd. (688028.SH) issued an announcement regarding abnormal stock price movements, stating that its core business involves the R&D, production, and sales of ultra-high precision and high-precision cutting tools, as well as superhard material products.

Recently, certain products and business segments of the company have attracted significant attention. Diamond micro drills for PCB hole processing are currently in the R&D and testing phase and have not yet generated revenue. From January to September 2025, diamond micro drills achieved revenue of 9.5265 million yuan in other application fields. During the same period, tools for processing screws and RV reducers, as well as diamond heat sink products, contributed minimal revenue, accounting for less than 1% of the company's total revenue.

The impact of these products on the company's 2025 revenue is expected to be limited. The development prospects of these products are subject to multiple factors, including industry trends and market conditions, and remain uncertain. Additionally, the related market is still in its early stages of cultivation, and future market expansion may face challenges, including risks such as lower-than-expected downstream demand. Investors are advised to exercise rational judgment and be mindful of investment risks.