Group 1 - Huaguang New Materials has experienced a continuous decline for five trading days, with a cumulative drop of -7.97% [1] - Huaguang Welding New Materials Co., Ltd. was founded in 1995 and focuses on intelligent, efficient, and green welding solutions, recognized as a national high-tech enterprise [1] - Guojin Fund's Guojin Autonomous Innovation Mixed A has entered the top ten shareholders of Huaguang New Materials and is a new addition in the second quarter of this year, achieving a year-to-date return of 23.27%, ranking 665 out of 4513 in its category [1] Group 2 - The fund manager of Guojin Autonomous Innovation Mixed A is Sun Xinyan, who has a master's degree in engineering and has held various positions in investment management since 2015 [4][5] - Sun Xinyan has been with Guojin Fund Management Co., Ltd. since January 2023 and has previously worked at several other financial institutions [4][5] - Guojin Fund Management Co., Ltd. was established in November 2011 and has multiple shareholders, with Guojin Securities holding 51% [5]