康希诺生物：桂水发及刘建忠辞任独立非执行董事

Group 1 - The core point of the article is that CanSino Biologics (06185.HK) announced the resignation of independent non-executive directors Gui Shuifa and Liu Jianzhong due to the expiration of their six-year term [1] - The company has nominated Zuo Min and Ji Xuefeng as candidates for independent non-executive directors for the third board, pending approval by shareholders at an extraordinary general meeting [1]