Jiejong Technology said on August 31 that its shares had risen more than 20% cumulatively over the two trading days of August 28 and August 31, meeting the definition of abnormal trading volatility, according to Jiemian News. The company said its main business is the production, design, R&D and sale of precision structural parts. It added that revenue from precision structural parts related to foldable screens accounted for less than 1% of its first-half 2026 revenue and had no material impact on operating results. The company gave the same assessment for precision structural parts related to AI liquid cooling, saying that revenue from that business also accounted for less than 1% of first-half 2026 revenue and had no material impact on operating results.