永兴材料：公司矿山改扩建项目相关工作正在积极推进中，目前生产经营正常

Group 1 - The core viewpoint of the article is that Yongxing Materials (002756.SZ) is actively advancing its mining expansion project while maintaining normal production operations [1][2]. Group 2 - An investor inquired about the delay in the expansion project despite receiving the expansion permit in January 2024, which has been two years [3]. - The investor expressed concern that the company's lithium valuation is only half of that of other companies in the same sector, indicating potential production halts in 2026 [3].