Deutsch | German
Français | French
Magyar | Hungarian
| Certificate | Country | Section | Plant |
| Hygiene | STI Corrugated GmbH | |
| DIN ISO 22000:2018 | Hungary | Environment | STI Petöfi Nyomda Kft. |
| Hungary | Environment | STI Petöfi Nyomda Kft. | |
| ISO 45001:2018 | UK | Hygiene | STI Line Ltd. |
ISO 50001:2011 | Germany | Quality | STI Gustav Stabernack GmbH |
| ISO 50001:2011 | Germany | Quality | STI Lauterbach Verpackung GmbH |
| ISO 50001:2011 | Germany | Quality | STI Corrugated GmbH |
| ISO 50001:2011 | Germany | Quality | STI d+v Display + Verpackung GmbH & Co KG |
ISO 9001:2015 | UK | Quality | STI Line Ltd. |
| ISO 9001:2015 | Germany | Quality | STI Gustav Stabernack GmbH |
Germany | Quality | STI Lauterbach Verpackung GmbH | |
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STI Corrugated GmbH | |
| ISO 9001:2015 | Germany | Quality | STI d+v Display + Verpackung GmbH & Co.KG |
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STI Schräder Verpackungen GmbH |
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STI CAD Laser Form GmbH |
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STI Pro Grafik GmbH |
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ISO 9001:2015 | Hungary | Quality | STI Petöfi Nyomda Kft. |
| Hungary | Environment | STI Petöfi Nyomda Kft. | |
| UK | Environment | STI Line Ltd. |
| UK | Environment | STI Line Ltd. | |
| FSC® - Forest Stewardship Council® | Germany | Environment | STI Gustav Stabernack GmbH |
| FSC® - Forest Stewardship Council® | Germany | Environment | STI Lauterbach Verpackung GmbH |
| FSC® - Forest Stewardship Council® | Germany | Environment | STI Corrugated GmbH |
| FSC® - Forest Stewardship Council® | Germany | Environment | STI d+v Display + Verpackung GmbH & Co.KG |
| FSC® - Forest Stewardship Council® | Germany | Environment | STI Schräder Verpackungen GmbH |
| FSC® - Forest Stewardship Council® | France | Environment | STI Display Emballage Création S.A.R.L. |
| FSC® - Forest Stewardship Council® | Czech Republic | Environment | STI Česko s.r.o. |
| FSC® - Forest Stewardship Council® | Hungary | Environment | STI Petöfi Nyomda Kft. |
Hungary | Environment | STI Petöfi Nyomda Kft. | |
| SID - Certificate of conformity | Germany | Quality | STI Pro Grafik GmbH |
