常铝股份：子公司签订1.65亿元合同

Group 1 - The core point of the article is that Chang Aluminum Co., Ltd. announced a contract worth RMB 165 million with Kang Le Wei Shi (Kunming) Biotechnology Co., Ltd. for the construction of a cleanroom facility for HPV vaccine production [1] - The contract represents 18.11% of Shanghai Langmai's audited main business revenue for the year 2024, indicating a significant contribution to the company's financials [1] - The signing of this contract is expected to have a positive impact on the company's medical clean health business segment [1]