On 25 November 2015 in the premises of the Ordering Party "Vodovod grada Vukovara Ltd.“ the Agreement on the implementation of professional supervision of the construction of wastewater treatment device of Sotin settlement was signed with the company SEDRA consulting Ltd., as the leading partner.

On 11 November 2015 in the premises of the Ordering Party Slavča Ltd. the Agreement on the implementation of professional supervision of the project "Wastewater Collection, Drainage and Treatment System of Nova Gradiška Agglomeration" was signed with the company SEDRA consulting Ltd., as the leading partner.