WIBID and WIBOR Reference Rates as of June 30, 2017 inclusive published on the website: www.gpwbenchmark.pl are the result of calculations carried out by GPW Benchmark S.A.. Due to the above, GPW Benchmark S.A. is responsible as the Administrator for publishing Reference Rates as of June 30, 2017. With regard to Reference Rates Fixing results prior to June 30, 2017, presented data are provided by the former entity providing WIBID and WIBOR Reference Rates  – Stowarzyszenie Rynków Finansowych ACI Polska.

As of 22 December 2025 WIBID SW and WIBOR SW are indices determined for the SW Fixing Tenor in accordance with the Method of Determining the Reference Rates, constituting an element of the Reference Rate Method used to determine the WIBID and the WIBOR. The Administrator publishes the aforementioned values for informational purposes.

As of 22 December 2025 WIBOR for 1Y Fixing Tenor is determined based on Algorithmic Method.

Below we present average WIBID and WIBOR Reference Rates for each calendar year from 2006 onward with the total measure for the 2006-2020 period.

The Warsaw Interbank Offered Rate and Warsaw Interbank Bid Rate data for the years 2000-2005 (“Historic Rates Data”) provided by Refinitiv is provided for informational and non-commercial purposes only, and has not and will not be checked or validated for completeness or accuracy. The Historic Rates Data is proprietary to Refinitiv Limited, its affiliates (“Refinitiv”) and/or its third party providers. GPW Benchmark can make use of the Historic Rates Data only to the extent required by a regulator. Any other use of the Historic Rates Data is prohibited without Refinitiv’s prior written consent.

All warranties, conditions and other terms implied by statute or common law including, without limitation, warranties or other terms as to suitability, merchantability, satisfactory quality and fitness for a particular purpose, are excluded to the maximum extent permitted by applicable laws. The Historical Rates Data is provided "as is" without warranty of any kind. Refinitiv does not warrant or represent that the Historical Rates Data is free of any inaccuracies, interruptions, delays, omissions or errors ("Faults"), or that all Faults will be corrected. Refinitiv shall not be liable for any damages resulting from any such Faults.

The Historic Rates Data is not to be construed as a solicitation, recommendation or offer to buy or sell any security, financial product or instrument.  Further, none of the Historic Rates Data is intended to constitute or form a part of any offer for the sale or subscription of, or any invitation to offer to buy or subscribe for, any securities or other financial instruments, nor should it or any part of it form the basis of, or be relied upon in connection with any contract or commitment whatsoever.