Communiqué

GPW Benchmark announces that following the trading session on June 30, 2023, there will be a periodic change of bond indices portfolio. In the indices there will be following changes:

TBSP.Index

• change in the number of bonds: DS1030, DS1033, OK1025, PS0728.

GPWB-B1Y3Y

• change in the number of bonds: OK1025.

GPWB-B1Y4Y

• change in the number of bonds: OK1025.

GPWB-B1Y5Y

• change in the number of bonds: OK1025.

GPWB-B5Y

• change in the number of bonds: DS1030, DS1033, PS0728.

GPWB-BWZ

• change in the number of bonds: WZ1128,
• removed bond: WZ0124.

Attached is the composition of the portfolios of the remaining bond indices after changes.