On October 24, Xiamen Kingdomway Group hit the daily limit, Aba Chemicals Corporation rose by more than 10%, Hunan Er-Kang Pharmaceutical, Guangdong Zhongsheng Pharmaceutical, Brother Enterprises Holding, dezhan healthcare and others led the gainers. On the news front, according to the Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, the institute has achieved over a 100-fold increase in the production of nicotinamide mononucleotide (NMN) by developing a de novo synthesis pathway. Reports indicate that Tianjin Institute of Industrial Biotechnology successfully developed a de novo synthesis pathway for NMN in E. coli through systematic engineering, effectively increasing the in vivo metabolic production of NMN.