Core Viewpoint - The A-share market saw a significant rally in the engineering machinery sector on February 3, with multiple stocks experiencing substantial gains, indicating a positive trend in this industry [1]. Group 1: Stock Performance - Jiangshun Technology (江顺科技) reached the daily limit with a 10% increase, bringing its total market value to 66.33 billion [2]. - Construction Machinery (建设机械) and Sikan Technology (思看科技) both rose by over 8%, with Sikan Technology's market value at 137 billion [2]. - Huadian Technology (华电科工) increased by over 7%, with a market value of 134 billion [2]. - Anhui Heli (安徽合力) and Zoomlion Heavy Industry (中联重科) both saw gains exceeding 6%, with market values of 198 billion and 797 billion respectively [2]. - Sany Heavy Industry (三一重工) rose by 6.03%, with a market value of 2085 billion [2]. - Other notable performers included Shantui (山推股份) and Hengli Hydraulic (恒立液压), both increasing by over 5% [2]. Group 2: Year-to-Date Performance - Jiangshun Technology has a year-to-date increase of 42.17% [2]. - Sikan Technology shows a remarkable year-to-date increase of 65.88% [2]. - Huadian Technology has a year-to-date increase of 46.56% [2]. - Anhui Heli's year-to-date increase stands at 6.41% [2]. - Zoomlion Heavy Industry has a year-to-date increase of 9.40% [2]. - Sany Heavy Industry's year-to-date increase is 7.29% [2].