The main segment of the Group’s operations is the provision of comprehensive services in the field of railway infrastructure construction, which accounts for approx. 85,6 % of sales revenue in 2025 (approx. 73,1% in 2024). The main recipient of services in this area is PKP PLK [Polish State Railways], an entity responsible by law for railway infrastructure management in Poland. In 2025, sales to PKP PLK amounted to approximately PLN 1,73 billion, which represented approximately 91,3% of total sales (in 2024 respectively – PLN 1,6 billion, approx. 80,5% of total sales).