Communiqué

GPW Benchmark announces that following the trading session on April 27, 2026 lists of WIG and WIG-Poland participants will be supplemented with 8,729,000 shares of SYN2BIO company (ISIN PLSNBIO00013).

SYN2BIO company’s shares were introduced to trading on GPW Main List on April 15, 2026 and fulfill criteria of the above mentioned indices.