| 1873 |
M & P is established in Germany |
| 1888 |
Refractory plant in Valenciennes, France is established |
| 1889 |
J. E. Baker Company is established in York, USA |
| 1909 |
Dolomitwerke is established in Hagen, Germany by August Thyssen |
| 1912 |
First rotary kiln begins operation in Hagen |
| 1927 |
Start of refractory production in Kruft, Germany |
| 1938 |
Start of brick production in Hagen and Valenciennes |
| 1964 |
Start of brick production in York |
| 1971 |
Start of alumina monolithics production in Kruft |
| 1973 |
Start of magnesia brick production in Oberhausen, Germany |
| 1992 |
Valenciennes and Flaumont plants acquired by Lhoist Group, to become Lhoist Refractaires |
| 1997 |
Baker / Envoy joint venture Kaohsiung, Taiwan |
| 1997 |
Engineered Ceramics Plant begins production in York |
| 1999 |
Acquisition of Dolomitwerke Wülfrath resulting in merger with Lhoist Refractaires to become Wülfrath Refractories |
| 2001 |
Acquisition of Baker Refractories – resulting in merger with Wülfrath Refractories to become LWB Refractories |
| 2006 |
Joint Venture with TISCO in Taiyuan, China |
| 2008 |
Start of brick production in Chizhou, China |
