工大高科股东张汉龙计划减持公司股份；*ST奥维：股票交易严重异常波动 | 公告精选

Shareholding Changes - Gongda Gaoke's shareholder Zhang Hanlong plans to reduce his holdings by no more than 0.1427% of the company's total shares, amounting to a maximum of 125,000 shares due to personal funding needs [1] - Huate Gas's three shareholders plan to collectively reduce their holdings by no more than 2% of the company's total shares, which equates to a maximum of 2.4 million shares, between February 4 and April 30 [2] - Chuangyao Technology's director Wang Wanli intends to reduce his holdings by no more than 0.0013% of the company's total shares, which is a maximum of 1,443 shares [3] Risk Events - *ST Aowei's stock has experienced severe abnormal fluctuations, with a cumulative closing price drop of 70.31% over 30 consecutive trading days from November 27, 2025, to January 9, 2026, which qualifies as a serious abnormal trading situation according to Shenzhen Stock Exchange regulations [4] Mergers and Acquisitions - Defu Technology plans to acquire at least 51% of Huiru Technology through cash purchases and capital increases, making Huiru Technology a subsidiary of Defu Technology post-transaction. Huiru Technology's main products include lithium battery copper foil and electronic circuit copper foil, with an annual production capacity of 20,000 tons for electrolytic copper foil [5]