Implenia Executive Committee Implenia Executive Committee members The IEC has nine members. Claudia Bidwell was recently appointed to the IEC as Chief Human Resources Officer on 1 December 2020. Christelle Beneteau resigned from the IEC on 30 November 2020. The table below shows the composition of the [...] any further significant activities and permanent positions in significant interest groups. Implenia Executive Committee André Wyss Chief Executive Officer Born 1967 Swiss citizen Education Various Executive Education Modules in Leadership Development at Harvard Business School Study of economics at the [...] Financial Accounting, and M&A, University of St. Gallen (HSG) Member of Executive Board Development Switzerland Christian Späth Head Division Civil Engineering Born 1968 German citizen Member of the Implenia Executive Committee Education Diploma in Civil Engineering, Munich Technical University Professional

Implenia Executive Committee Implenia Executive Committee members The IEC consists of the CEO, the CFO and other members designated by the Board of Directors. In the reporting year, the Group Executive Board that existed up to 28 February 2019 was replaced by the Implenia Executive Committee. Instead [...] Counsel Born 1969 Swiss citizen Member of the Implenia Executive Committee Education Stanford Executive Program (SEP), 2019 Lic. iur., University of Freiburg Dr. iur, University of Basel LL.M, New York University Attorney at Law Standford Executive Program (SEP), 2019 Professional Experience Since 2014 [...] accounting, as well as Corporate Affairs) 2014—2018 Member of the Executive Committee of Novartis Earlier: Various roles within Novartis, including Head of Finance Research & Development, Head of Pharmaceutical Production in Europe and Executive for Country and Regional Companies, including the USA, Greece

Implenia Executive Committee Implenia Executive Committee members As of 1 March 2022, the IEC consists of eight members. The previous position of Head of Country Management was discontinued due to the completion of the transformation and Matthias Jacob left the IEC to devote himself to the position of [...] significant activities and permanent positions in significant interest groups. André Wyss Chief Executive Officer Born 1967 Swiss citizen Chairman of the Implenia Executive Committee Education Various Executive Education Modules in Leadership Development at Harvard Business School Study of economics at [...] , University of St. Gallen (HSG) Vice-Chairman of the Executive Board Development Switzerland Member of the Board of Bauen Schweiz Christian Späth Head Division Civil Engineering Born 1968 German citizen Member of the Implenia Executive Committee Education Diploma in Civil Engineering, Munich Technical

Implenia Executive Committee Implenia Executive Committee members The IEC continues to consist of nine members. The table below shows the composition of the IEC as of 31 December 2021: Name Nationality Position Member of IEC since André Wyss Switzerland CEO 2018 Marco Dirren Switzerland CFO 2019 Adrian [...] German Construction Industry Chairman of the Executive Board, German Concrete and Construction Engineering Association Deputy Chairman of the Supervisory Board of the Initiative “planen-bauen 4.0” Executive Member of the Central Real Estate Committee Executive Member of the Advisory Board of BIM Germany [...] , University of St. Gallen (HSG) Vice-Chairman of the Executive Board Development Switzerland Member of the Board of Bauen Schweiz Christian Späth Head Division Civil Engineering Born 1968 German citizen Member of the Implenia Executive Committee Education Diploma in Civil Engineering, Munich Technical

Implenia Executive Committee compensation For the year under review, the IEC comprises eight members: the CEO, the four Division Heads and the Function Heads of Human Resources, Finance/Procurement, and Legal & Compliance. One former member of the IEC, who left in 2022, was still on notice period until [...] CEO received the highest compensation. The detailed disclosure of compensation of the IEC is as follows: Compensation awarded in 2022 Implenia Executive Committee Annual base salary Short-Term Incentive 4, 5 Long-Term Incentive PSU 2022‑2025 cycle 6 Other 2022 compensation 7 Social security expenses 8 Total [...] additional fees or compensation were invoiced by members of the IEC for the year under review (2021: CHF 0). Compensation awarded in 2021 Implenia Executive Committee Annual base salary Short-Term Incentive 4, 5 Long-Term Incentive PSU 2021‑2024 cycle 6 Retention award 7 Restricted shares (70 %) / Cash (30

Implenia 2021 consolidated financial statements. 3 Included in this table is one former member of executive management: Christelle Beneteau left the executive management on 30 November 2020 and her executive management employment contract expired on 31 March 2021. Her compensation is included pro-rata. [...] Christian Späth, Jens Vollmar and Adrian Wyss were part of executive management for the full year. Christelle Beneteau left executive management on 30 November 2020. Her compensation is included for the entire year as the notice period of her executive management contract started on 1 December 2020 and will [...] statements. 3 Included in this table are two former members of executive management: André Métral left the Group Executive Board on 28 February 2019, but remained employed with Implenia; his compensation related to the notice period of his executive position is included for the first two months of the year