Tianyancha App shows that recently, there has been a commercial change at Gansu Jiugang Group Hongxing (600307), where Zhang Zhengzhan stepped down as the legal representative and chairman, and was succeeded by Qin Junshan. At the same time, several senior executives have undergone changes. Gansu Jiugang Group Hongxing Iron & Steel Co., Ltd. was established in April 1999 with a registered capital of approximately 6.26 billion RMB, jointly held by Jiùquán Iron & Steel (Group) Co., Ltd., Huang Yicao, Hong Kong Central Clearing Limited, among others. According to media reports, the company recently announced that Qin Junshan has taken on the role of chairman of the 8th Board of Directors, and will also assume the corresponding duties of the board committees previously held by former chairman Zhang Zhengzhan.