鲁北化工：关于控股股东股份质押的公告

Group 1 - The core point of the article is that Luban Chemical announced the pledge of 40 million shares by its controlling shareholder, Luban Group, to Zheshang Securities for operational purposes [1] - The pledge period is from January 29, 2026, to January 28, 2027 [1] - The pledged shares account for 22.10% of Luban Group's holdings and 7.57% of the total share capital of Luban Chemical [1]