| 1923 | Willi Hennies establishes the company. He starts doing business with scrap and metal with a seed capital of 1,000 RM and a bicycle. |
| 1925 | A horse and a carriage are bought. |
| 1927 | An old half-timbered house with backyard and storage shed is acquired as business place. |
| 1946 | Willi Hennies takes over his brother’s business located in the Steuerwalder Straße. His daughter Ursel and his son Horst-Dieter become shareholder of the company. |
| 1949/50 | The family business buys the premises at the Römerring from the Vereinigte Deutsche Metallwerke – the Associated German Metal Works. |
| 1969 | Horst-D. Hennies leaves the Hildesheim based company as shareholder. |
| 1971 | Willi Hennies dies at the age of 69. Ursel and Karl Staufenbiel continue the business. |
| 1976 | Additional property located at the Hildesheim port is bought. |
| 1985 | Ulrich Staufenbiel takes on management. |
| 1988 | A Zerdirator system is built. |
| 1998 | Ursel and Karl Staufenbiel leave the company. |
| 1998 | The quality management system and the business as specialised waste management company are certified. |
| 1999 | Installation of the SV 1250 large scrap cutter. |
| 2003/4 | Comprehensive investment in the infrastructure of the company |
| 2006 | Certification as accredited specialised company according to the electric and electronic equipment act |
| 2008 | Erection and commissioning of a pre-shredder |
| 2014 | Start of the new construction of three storage buildings with a total surface of approx. 2,500 m² |
| 2015 | Robert Staufenbiel supports his father as second managing director |
| 2016 | Ulrich Staufenbiel dies at the age of 59. Mr Robert Staufenbiel takes on the sole management. |
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