| Year | Detail |
| 1863 |
Covestro AG was founded as Friedr. Bayer et comp. |
| 1927 |
Invented first synthetic coating raw material. |
| 1937 |
The discovery of polyurethanes. |
| 1953 |
Discovered polycarbonate. |
| 1970 |
Established the world's biggest hydrazine plant. |
| 1990 |
Extended its global presence. |
| 2001 |
Expanded its business to China. |
| 2015 |
Bayer MaterialScience becomes a separate legal entity operating under the name Covestro. |
| 2016 |
Covestro opens a plant capable of converting waste gas carbon dioxide into raw material for plastics. |
| 2017 |
Covestro announces intentions to produce aniline from biomass. |