Institut IGH d.d.

Related Party Transaction • Dec 15, 2021

Ordinary share IGH-R-A, ISIN HRIGH0RA0006 Listed on the official market of the Zagreb Stock Exchange Home Member State: Croatia LEI mark: IGH-R-A, ISIN HRIGH0RA0006

ZAGREB STOCK EXCHANGE HANFA HINA Ivana Lučića 2a Miramarska 24b ots@hina.hr10000 10000 Zagreb 10000 Zagreb

Investor disclosure

INSTITUT IGH, d.d. AND PARTNERS SIGNED A 5,9 MILLION HRK CONTRACT WITH PORT AUTHORITY VUKOVAR

Zagreb, 15 December 2021 - The joint venture of Institut IGH, d.d., Vodoprivredno-projektni biro d.d. and KPMG Croatia d.o.o signed a contract with the Port Authority Vukovar for the service of preparing study and project documentation for the project of constructing a vertical shore in the port area of Vukovar. The project will also include obtaining a location permits, decisions on environmental acceptability and building permits.

The contract's total value is HRK 5,915,000.00 (excluding VAT), while the share of the Institut IGH, d.d. amounts to 2,555,871.50 HRK.

The service includes the preparation of the following documentation:

• Geodetic and geotechnical study
• Feasibility studies
• Traffic-technological study
• A preliminary design with related project components and studies (obtaining location permits)
• Environmental impact studies (including obtaining a Decision on the acceptability of the project to the environment),
• The main design with the relevant components and studies (obtaining construction permits).

Sincerely,

INSTITUT IGH, JSC

INSTITUT IGH, d.d. Janka Rakuše 1 10000 Zagreb, Croatia

PHONE +385 (0)1 612 51 25 FAX +385 (0)1 612 54 01 EMAIL igh@igh.hr WEB www.igh.hr

Competent court: Commercial Court in Zagreb Register entry with company registration No 080000959

Share capital: HRK 116,604,710.00 Paid in full No of issued shares: IGH 613,709

Nominal share value HRK 190

Reg.No.: 3750272 PIN: 79766124714 Business bank: SBERBANK d.d. IBAN: HR6825030071100087335 SWIFT code: VBCRHR22

Management Board:

Robert Petrosian, President of the Management Board Vedrana Tudor, Member of the Management Board Miroslav Pauzar, Member of the Management Board Igor Džajić, Member of the Management Board

Supervisory Board: Žarko Dešković, MEng.CE President of the Supervisory Board