During April 2025, Philipp Weigmann enhanced emissions data harmonization within the pik-piam/mrremind repository by refining the sectoral mapping process. He reclassified the '6A_Other-in-total' category from 'Other' to 'Industrial Sector' in the REMIND emissions harmonization mapping, directly improving data accuracy for downstream modeling and reporting. This work involved updating the mappingCEDS2025toREMIND.csv file using CSV data manipulation and applying data harmonization and mapping skills. The update focused on precise category alignment rather than bug fixes, demonstrating careful attention to data governance and quality. The scope was targeted, reflecting depth in data wrangling and version-controlled mapping updates.