Day 2 Part 1 covers reports on best practices with regards to community-driven ontology development. The NFDI4Cat consortium presents its Ontology Workflow, NFDI4Chem presents onging work on the ontology development for Raman & NMR in NFDI4Chem, and the adaption of (Bio) Schemas4Chem for chemistry. Recording Day 2 Part 1 of the 1st International Ontologies4Chem Workshopy organized by NFDI4Chem - the chemistry consortium in the NFDI. The workshop provided a comprehensive overview of past and current activities of chemistry ontology projects, tools for ontology engineering and the application and curation of ontogologies in research data management. Details: https://doi.org/10.25798/frnp-sn04