Presentation of Polimex Mostostal Capital Group's Financial Results for QI 2025

Warsaw, 26 May 2025

For almost 80 years, the Polimex Mostostal Capital Group has been among the largest Polish engineering and construction groups in Europe. We support the energy security and economic development of Poland.

https://WWW.POLIMEX-MOSTOSTAL.PL

Polimex Mostostal S.A. is one of the largest Polish engineering and construction companies. A general contractor in the field of industrial and infrastructure construction. The company implements specialized investments in Poland and abroad for the energy, petrochemical, gas, and environmental protection sectors. We are a manufacturer and exporter of steel structures and grating systems, and we also provide galvanizing and painting services for steel constructions. We continuously intensify our efforts to actively participate in the country's energy and economic transformation, seeing this process as a key element of long-term development and responsibility. We present to you the financial results for the first quarter of 2025.

The company was founded in 1945, so 2025 marks 80 years of activity for European business and the development of the Polish economy. Polimex Mostostal S.A. is a public company listed on the Warsaw Stock

Exchange since 1997.

https://WWW.POLIMEX-MOSTOSTAL.PL

1. About the Polimex Mostostal Capital Group

2. Business segments and selected ongoing projects

3. Order portfolio of the Polimex Mostostal Capital Group

4. Financial results of the Polimex Mostostal Capital Group

First Quarter 2025 Report

Notarial Deed No. 1186/45 - the beginning of it all

Since 1945, we have been building on solid foundations.

On September 10, 1945, in post-war Warsaw, before notary Antoni Szymański and by decision of the Ministry

of Industry, the founding act of one of the most important industrial organizations of that time was signed. The act was signed by representatives of newly established structures of the United Industries: Machine Tool, Agricultural Machinery, Railway Rolling Stock, Automotive, and other strategic branches of the national economy.

A legacy embedded in Poland's economic development

From that moment, a story began - one that, despite political, economic and technological changes, continues uninterrupted to this day. Our company, whose roots go back to Notarial Deed No. 1186/45, has played

- and continues to play - a key role in rebuilding industry, developing infrastructure, and advancing modern construction technologies in Poland.

The presented first page of the founding act is not only

a historical record, but also a symbol of long-term thinking, institutional memory, and the well-designed foundations of Our Company.

Polimex Mostostal Capital Group conducts its business

activities in a sustainable and socially

responsible way.

By making full use of the Company's resources, i.e. well-qualified staff, unique experience in the

implementation of investments, numerous references and high

investments in Poland and abroad

production potential, Polimex Mostostal carries out ambitious construction

We build the value of the

Company for our shareholders by conducting business

in key areas

of the economy

ESG

POWER SECTOR

OIL, GAS AND CHEMICALS

INDUSTRIAL AND GENERAL CONSTRUCTION

INFRASTRUCTURE PRODUCTION