This cer�ficate is valid as long as the surveillance audits are completedand the requirements of Dene�k Cer�fica�on are followed.The validity of this cer�ficate can be checked from www.dene�k.com.

This is to certify that organization:

OSA Računarski inženjering d.o.o.

Takovska 45/VI, 11000 Belgrad e, Republic of Serbia

has implemented and maintains an IT Service Management Systemwithin the scope of:

Service management system that supports Implementationof Professional Information Systems and IT equipment, in the fieldof Document and Workflow Management, combined with otherManagement and Business Intelligence modules, as well as professionalgraphically oriented IT solutions dedicated to designers (CAD)and Infrastructure Management (GIS) as per service catalogueof OSA Računarski inženjeringin accordance to:

ISO/IEC 20000-1:2018 Cer cate No.: SRN2342Date of issue: 30.06.2021.

29.06.2024.Expiry date:

General Manager:

Dene�k Interna�onal Cer�fica�on Audit and Inspec�on Services Company Limited

Ini�al Cer�fica�on date: 30.06.2021.