Warsaw, November 25, 2025

Communiqué

GPW Benchmark announces that following the trading session on November 27, 2025 the list of NCIndex participants will be supplemented with 285,000 shares of BASEIG company (ISIN PLBSG0000023).

BASEIG company’s shares were introduced to trading on NewConnect on October 28, 2025 and fulfill criteria of the above mentioned index.