| Year | Detail |
| 2007 |
Basell A.F. and Lyondell Chemical Co. merged to develop LyondellBasell Industries, one of the third-largest independent chemical companies worldwide. |
| 2009 |
LyondellBasell Industries Holdings B.V. was established under Dutch law by deed of incorporation to serve as the new parent holding company for certain subsidiaries of LyondellBasell A.F. S.C.A. |
| 2016 |
LyondellBasell acquired Zylog Plastalloys to manufacture Hostacom glass fiber-reinforced, mineral-filled filled, and unfilled colored grades and Hifax highly impact thermoplastics olefins. |
| 2017 |
LyondellBasell started the construction of its first commercial Hyperzone PE plant in La Porte, Texas, using the company’s new proprietary technology. |
| 2018 |
LyondellBasell acquired A. Schulman, Inc., a leading supplier of high-performance plastic compounds, composites, and powders worldwide. With this acquisition, the company will double its existing compounding business and broaden its reach into growing, high-margin end markets such as construction materials, automotive, electronic goods, and packaging. |
| 2022 |
LyondellBasell expanded its catalyst production by developing a catalyst manufacturing plant for infrastructure projects in Frankfurt, Germany. |
| 2023 |
LyondellBasell developed its first industrial-scale catalytic advanced recycling demonstration plant at Wesseling, Germany. |