Subject:Updateof the information on estimate reduction in coal production levels dueto an incident at KWK Pniówek

Body of the Report:

The Management Boardof Jastrzębska Spółka Węglowa S.A. [_quot;Company_quot;, _quot;JSW_quot;] with reference toCurrent Report No. 28/2023 of 19 December 2023 on the declaration offorce majeure, hereby announces an update of the estimated analysis ofthe impact of the 6 December 2023 fire at KWK Pniówek on productionlevels in 2024.

The Company'sManagement Board estimates that the loss in coal production at KWKPniówek may increase by 100 thousand tons. Accordingly, the estimatedimpact of the event in 2024 is estimated at 450 thousand tons ofreduction in the production level at KWK Pniówek.

Moreover, the Companyreports that as at the date of preparing this report, it is not possibleto specify the full impact on the future prospects of the Company and ofthe JSW Group.Inthe event of material changes stemming from the analyses conducted, JSWwill provide information in the form of separate current reports.