岩山科技跌幅7.3% 近6年5个月无研报

Group 1 - The company, Yanshan Technology, closed at 7.62 yuan with a decline of 7.30% [1] - In August 2023, the company's name was changed from "Shanghai Ersan Siwu Network Holding Group Co., Ltd." to "Shanghai Yanshan Technology Co., Ltd." [1] - The last research report on the company was published by Guotou Securities on April 15, 2019, indicating high growth in performance and positive momentum in mobile business [1]