The PINK Annotation Schema provides semantic annotations for the Safe and Sustainable by Design (SSbD) approach to guide the innovation process for chemicals and materials. It adhears to the recommendations specified by DCAT-AP 3.0.1 as implemented in Tripper, and builds on PROV-O for provenance.
The PINK Annotation Schema is by itself not a top-level ontology, but is strives to be easy to align with different top-level ontologies, like EMMO and BFO.