Core Insights - The research focus on lunar samples in China is shifting from traditional geological analysis to engineering applications such as in-situ resource utilization and lunar regolith brick-making [1][3]. Group 1: Research Evolution - Initial lunar sample research began with the Chang'e 5 mission, primarily focusing on geological sciences, including lunar age determination, paleomagnetic analysis, and mineral composition studies [3]. - As research progresses, there is an increasing scientific demand for lunar samples related to lunar engineering and applications [3]. Group 2: Institutional Involvement - Numerous engineering research institutions in China are now involved in lunar sample applications, with research topics covering regolith material properties, equipment calibration, and basalt fiber preparation [5]. - The growing demand for lunar research is driven by future missions, including manned lunar landings and the construction of lunar research stations, prompting early preparatory studies [5].