证券时报·2025-08-30 14:11Group 1 - The article highlights the significant stock holdings of well-known investor Zhang Jianping in various companies as of the end of the second quarter [1][2] - Zhang Jianping holds 608.63 million shares of Cambricon Technologies, representing 1.45% of the company, with no change in shareholding from the previous quarter [1] - In Ningbo Huaxiang, Zhang holds 615.85 million shares, accounting for 0.76% of the company, with the stock experiencing a nearly 90% increase since June [1] - Zhang's stake in Hanwei Technology is 241.06 million shares, which is 0.74% of the company, involved in sensors and smart instruments [1] - In Huibo Yuntong, Zhang owns 387.45 million shares, representing 0.96% of the company, which provides software and technical services [1] - Zhang holds 521.10 million shares in Longxi Co., accounting for 1.30% of the company, which focuses on bearing and gearbox production [1] Group 2 - In Zhejiang Rongtai, Zhang holds 1,091.26 million shares, which is 3% of the company, specializing in high-temperature insulation materials for various applications [2] - Zhang's stake in Rongtai shares has been significant, particularly in the context of the growing new energy vehicle sector [2] - Zhang owns 467.89 million shares in Rongtai Co., representing 2.15% of the company, which focuses on automotive aluminum alloy precision castings [2] - In Changyang Technology, Zhang holds 338.78 million shares, accounting for 1.18% of the company, which produces optical films and membranes for various industries [2]