Worked on enhancing the China entry within the NclRSE-Training/countries dataset by adding detailed population and capital information to improve data completeness and support more accurate demographic analytics. Focused on data entry and text processing to ensure the new data points were integrated seamlessly, maintaining consistency and traceability through a single, well-documented commit. The update enabled downstream dashboards and analytics tools to access richer, more reliable country data. No bug fixes were required during this period, as the primary objective centered on expanding and refining the dataset. The work emphasized quality and auditability, supporting future data-driven insights and reporting.