Windsun Science&Technology Co.,Ltd.(688663.SH): Solid State Transformer (SST) Obtains International Certification

Windsun Science&Technology Co.,Ltd.(688663.SH) announced that recently, the core high-voltage and low-voltage power units of the company's solid state transformer (SST) have successfully passed TV Rheinland testing and obtained multiple international authoritative certification certificates including UL, IEC, and CSA. This marks that the company's core converter units of solid state transformers have reached the access standards of high-end markets in Europe and the United States in terms of safety design, hardware reliability, and environmental adaptability, laying a solid compliance foundation for the subsequent overseas market expansion of solid state transformer products. The successful acquisition of multiple international certifications for the core power units of solid state transformers this time is a phased achievement of the company's R&D in the frontier technical direction of solid state transformers. It further improves the company's overseas qualification reserves for high-end power electronic equipment, verifies that the hardware solutions of the core power units comply with European and American safety specifications and performance requirements, and is conducive to supporting subsequent SST complete machine R&D, customer prototype verification, and overseas business docking, aligning with the industrial development direction of new-type power systems and power supply supporting computing infrastructure. The subject of certification this time is the core power units, and the SST complete machine still requires subsequent integration, complete machine testing, and related verification work. This business is currently in the R&D and early market development stage and has not yet generated large-scale sales revenue, and will not have a material impact on the company's operating revenue or net profit in the short term. The company will continue to advance SST complete machine R&D, testing and verification, and market promotion related work.