Here are a few things you need to know as Saudi stocks start trading on Tuesday. 1) Al Gassim Investment Holding Co. (GACO) filed a lawsuit on Nov. 16 against a branch of Ministry of Environment, Water and Agriculture in Qassim Province, before the Administrative Court in Buraydah. 2) Saudi Pharmaceutical Industries and Medical Appliances Corp. (SPIMACO) terminated the contract with chief executive officer (CEO) Mohammed Alsultan, effective Dec. 14. 3) Saudi Arabian Amiantit Co. rights trading period ended on Dec. 14, 2020. 4) Saudi Paper Manufacturing Co.’s (SPM) subscription to new shares and rights trading began on Dec. 14, to increase capital from SR92 million ($24.53 million) to SR192 million.