润丰股份：关于控股股东部分股份质押的公告

Group 1 - The core point of the article is that Runfeng Co., Ltd. announced the pledge of shares by its controlling shareholder, Shandong Runyuan Investment Co., Ltd., to supplement liquidity [2][3] - Shandong Runyuan Investment Co., Ltd. pledged 7,250,000 shares, which represents 6.31% of its total holdings and 2.58% of the company's total share capital [2] - The pledge was completed with the China Securities Depository and Clearing Corporation Limited [2]