We call those “specialty chemicals” and it’s smaller volumes but much higher profit margins. Evonik (Germany) is another example.

Things like- not the asphalt shingle, not the granules on the asphalt shingles, but a COATING ON the granule on the asphalt shingle that provides weather protection.

Or, not the memory foam mattress, and not the liquid precursors that are combined to create the foam in the mattress, but an ADDITIVE to the precursors to the foam in the mattress which regulates/ensures a consistent size of foam bubbles during manufacture.