Controversies
Controversies tied to this brand in public sources. A listing is not a finding of fault.
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1991
Hydrogen-tank explosion at Hanau site
A hydrogen-tank explosion damaged substantial parts of the quartz-glass factory premises in Hanau. The event is documented as an industrial accident rather than a broader corporate scandal.
1939
Forced labor during the Second World War
During the Nazi period and the Second World War, Heraeus used approximately 1,500 forced laborers from the Hanau civilian labor camp. The company later commissioned an independent historical study of its role during the Third Reich and joined Germany’s compensation fund for former forced laborers.