C E R T I F I C A T E Deutsche Managementsystem Zertifizierungsgesellschaft mbH hereby certifies that the company EnviroChemie GmbH In den Leppsteinswiesen 9 64380 Rossdorf Germany with locations as listed in the annex for the scope Conception, design, construction, erection, research & development and production of water chemicals as well as service and operation of water and wastewater treatment plants has implemented and maintains a Quality Management System. An audit, documented in a report, has verified that this quality management system fulfills the requirements of the following standard: DIN EN ISO 9001:2015 November 2015 edition This certificate is valid until 2020-09-21 Certificate Registration No.: QM 00307 Griesheim, Germany 2019-09-08 DMSZ Dietmar Kaiser Raimund Mehrbrodt (Managing Director) (Certificate authority) Deutsche Managementsystem Zertifizierungsgesellschaft mbH Rübgrund 21 · 64347 Griesheim · Germany Annex to Certificate Registration No.: QM 00307 EnviroChemie GmbH In den Leppsteinswiesen 9 64380 Rossdorf Germany for the scope Conception, design, construction, erection, research & development and production of chemicals as well as service and operation of water and wastewater treatment plants Location EnviroChemie AG - Switzerland Twirrenstraße 6 8733 Eschenbach / SG Conception, design, construction, erection, research & development and production of chemicals as well as service and operation of water and wastewater treatment plants DMSZ This annex page 2 of 3 (edition: 2019-09-08) is only valid in connection with the above mentioned certificate. Deutsche Managementsystem Zertifizierungsgesellschaft mbH Rübgrund 21 · 64347 Griesheim · Germany Annex to Certificate Registration No.: QM 00307 Locations EnviroChemie BV - sales agency Benelux Waarderweg 52c 2031 BP Haarlem Sales of water and wastewater treatment systems and service EnviroChemie Polska Sp.z o.o. - sales agency Poland UI. Równolegla 9A 02-235 Warsaw Sales of water and wastewater treatment systems and service OOO Enviro-Chemie GmbH - sales agency Russia 83 Belinskogo str., sector 7, floor 8 620026 Ekaterinburg Sales of water and wastewater treatment systems and service EnviroChemie Bulgaria EOOD - sales agency Bulgaria Evlogi Georgiev Blvd. 100, St. 4, app 7 1505 Sofia Sales of water and wastewater treatment systems and service EnviroChemie Ges. m.b.H. - sales agency Austria Europastraße 8 9524 Villach Sales of water and wastewater treatment systems and service DMSZ This annex page 3 of 3 (edition: 2019-09-08) is only valid in connection with the above mentioned certificate. Deutsche Managementsystem Zertifizierungsgesellschaft mbH Rübgrund 21 · 64347 Griesheim · Germany.