Warsaw, July 12, 2023

Communiqué

GPW Benchmark announces that following the trading session on July 14, 2023 there will be an extraordinary adjustment and shares of ALUMETAL company (ISIN PLALMTL00023) will be removed from sWIG80, sWIG80TR, WIG140, WIG and WIG-Poland indices.

ALUMETAL company no longer meets criteria of the above mentioned indices, because it's free float is lower than 10%.

Additionally, following the trading session on July 14, 2023 MANGATA (ISIN PLZTKMA00017) company will supplement sWIG80, sWIG80TR and WIG140 indices with 2,270,000 shares.