# Koppers

> pittsburgh-based chemical company

**Wikidata**: [Q1784126](https://www.wikidata.org/wiki/Q1784126)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Koppers)  
**Source**: https://4ort.xyz/entity/koppers


## References

1. [Source](http://www.moma.org/collection/artists/63307)
2. Open ISNI for Organizations
3. Google Knowledge Graph
4. [Source](https://www.skyquestt.com/report/coal-tar-pitch-market/companies)
5. Global LEI Index
6. Aligned ISNI and Ringgold identifiers for institutions