
YOFC: The hollow core fiber-related business has not yet had a significant impact on the company's financial data

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YOFC announced that the company's stock price increased by more than 20% for three consecutive trading days from September 16 to September 18, 2025. The company pointed out that market attention to hollow-core optical fibers has risen, but the related business has not yet had a significant impact on financial data, and the application of hollow-core optical fibers is still in the early stages, with no scale sales or stable price and profit levels formed
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