1991 - foundation as Retek Recycling GmbH by Dipl. Mineraloge
1991 - (graduate mineralogist) Manfred Gralher in Goslar, Germany

1995 – change of company name to ReTek Goslar Recycling GmbH

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2007 – change of ownership to e-waste solutions Inc., Barrie, Canada


2008 – move of legal seat to Remscheid, Germany

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2009 – change of name to ReTek Engineering GmbH