兖矿能源：下属子公司鲁南化工、榆林能化、荣信化工等的化工产品中有甲醇，累计甲醇年产能430万吨

Group 1 - The company, Yanzhou Coal Mining Company (兖矿能源), has confirmed that it produces methanol through its subsidiaries [2] - The total annual production capacity of methanol across its subsidiaries is 4.3 million tons [2]