Deutsche Managementsystem Zertifizierungsgesellschaft mbHRübgrund 21 · 64347 Griesheim · Germany

Deutsche Managementsystem Zertifizierungsgesellschaft mbH

hereby certifies that the company

C E R T I F I C A T E

Dietmar Kaiser(Managing Director)

Raimund Mehrbrodt(Certificate authority)

have implemented and maintain a

Energy Management System.

An audit, documented in a report, has verified that this energy management systemfulfills the requirements of the following standard:

DIN EN ISO 50001 : 2018December 2018 edition

This certificate is valid until 2022-05-05

Certificate Registration No.: EnM 01167

Griesheim, Germany 2020-04-30

Dennert Poraver GmbH

Gewerbegebiet Ost 17 92353 Postbauer-HengGermany

and further locations listed in the annex

for the scope

Development, production and distribution of expanded glass granulate

Annex to Certificate Registration No.: EnM 01167

Units

Dennert Poraver GmbH

Adi-Dassler-Str. 396132 SchlüsselfeldGermany

Dennert Poraver GmbH

Mozartweg 196132 SchlüsselfeldGermany

This annex, page 2 of 2 (edition: 2020-04-30), is only valid in connection with the above mentioned certificate.