Warsaw, March 15, 2023

Communiqué

GPW Benchmark informs that with reference to the communiqué of March 13, 2023 and extraordinary adjustment in the portfolios of sWIG80, sWIG80TR and WIG140 indices carried out after the end of today's session, after a periodic adjustment starting from March 20, 2023, the portfolios of the above-mentioned indices will be supplemented with 3,898,000 shares of INSTALKRK company (PLINSTK00013).