Group 1 - Ruijun Technology has experienced a continuous decline for 8 trading days, with a cumulative drop of -10.65% [1] - Ruijun Technology specializes in variable frequency energy-saving and intelligent control application solutions, focusing on power electronics and motor control [1] - The company's main products include variable frequency drives and system controllers for HVAC/R, variable frequency drives and controllers for new energy vehicle thermal management systems, and servo drives and control systems for industrial applications [1] Group 2 - Guotai Fund's Guotai Intelligent Automotive Stock A has entered the top ten shareholders of Ruijun Technology, marking a new investment in the first quarter of this year [1] - The fund has achieved a year-to-date return of 6.38%, ranking 279 out of 975 in its category [1] Group 3 - Wang Yang is the fund manager of Guotai Intelligent Automotive Stock A, with a background in asset management and investment [3][4] - Wang has been with Guotai Fund since July 2018 and has managed multiple funds, including Guotai Intelligent Equipment Stock Fund and Guotai Value Pioneer Stock Fund [4]

Group 1 - Jiangsu Rongtai Industrial Co., Ltd. has experienced a continuous decline in stock price, with a cumulative drop of -14.45% over six trading days [1] - The company was established in 2000 and specializes in mold research and development, high-pressure die casting, precision machining, and assembly integration [1] - Rongtai went public on the Shanghai Stock Exchange in February 2021, with the stock code 605133 [1] Group 2 - Guotai Fund has two funds that are among the top ten shareholders of Rongtai, with Guotai Intelligent Automotive Stock A reducing its holdings in the first quarter of this year, while Guotai Intelligent Equipment Stock A made a new investment [1] - Guotai Intelligent Automotive Stock A has a year-to-date return of 7.12%, ranking 208 out of 936 in its category, while Guotai Intelligent Equipment Stock A has a year-to-date return of 3.12%, ranking 420 out of 979 [2] Group 3 - The fund manager for both Guotai Intelligent Automotive Stock A and Guotai Intelligent Equipment Stock A is Wang Yang, who has been with Guotai Fund since July 2018 [5][6] - Wang Yang has managed various funds, including Guotai Intelligent Equipment Stock Fund and Guotai Intelligent Automotive Stock Fund, with a total management experience of over six years [6]