Ciech S.A.

Audit Report / Information • Sep 7, 2023

BDO spółka z ograniczoną odpowiedzialnością sp.k. ul. Postępu 12 02-676 Warszawa Polska

tel.: +48 22 543 16 00 fax: +48 22 543 16 01 e-mail: office@bdo.pl www.bdo.pl

This document is a translation. The Polish original should be referred to in matters of interpretation.

INDEPENDENT AUDITOR'S REVIEW REPORT ON THE SEMI-ANNUAL CONDENSED CONSOLIDATED FINANCIAL STATEMENTS FOR THE SHAREHOLDERS AND SUPERVISORY BOARD OF CIECH S.A.

Introduction

We have reviewed the accompanying semi-annual condensed consolidated financial statements of CIECH Group where the parent company is CIECH S.A. with its registered office in Warsaw, Wspólna 62 ("Parent company"), comprising the condensed consolidated statement of financial position prepared as at 30 June 2023, and the condensed consolidated statement of profit and loss, the condensed consolidated statement of other comprehensive income, the condensed consolidated statement of changes in equity, the condensed consolidated statement of cash flows for the period from 1 January 2023 to 30 June 2023, and other explanatory information ("semi-annual condensed consolidated financial statements").

The Management of the Parent company is responsible for the preparation and presentation of the semi-annual condensed consolidated financial statements in accordance with the requirements of International Accounting Standards 34 Interim Financial Reporting, announced in the form of European Commission regulations.

Our responsibility is to form a conclusion on the semi-annual condensed consolidated financial statements based on our review.

Scope of Review

We performed the review in accordance with National Standard on Review Engagements 2410 in the wording of International Standard on Review Engagements 2410 "Review of Interim Financial Information Performed by the Independent Auditor of the Entity", adopted in a resolution passed by the National Council of Certified Auditors.

A review of financial statements consists of making inquiries, primarily of persons responsible for financial and accounting matters, applying analytical and other review procedures.

A review is substantially less in scope than an audit conducted in accordance with National Standards on Auditing in the wording of International Standards on Auditing. In consequence, a review is not sufficient to obtain assurance that all significant matters that might be identified in an audit, have been identified. Accordingly, we do not express an audit opinion on the accompanying semi-annual condensed consolidated financial statements.

BDO spółka z ograniczoną odpowiedzialnością sp.k., Sąd Rejonowy dla m. st. Warszawy, XIII Wydział Gospodarczy, KRS: 0000729684, REGON: 141222257, NIP: 108-000-42-12. Biura BDO w Polsce: Katowice 40-007, ul. Uniwersytecka 13, tel.: +48 32 661 06 00, katowice@bdo.pl; Kraków 31-548, al. Pokoju 1, tel.: +48 12 378 69 00, krakow@bdo.pl; Poznań 60-650, ul. Piątkowska 165, tel.: +48 61 622 57 00, poznan@bdo.pl; Wrocław 53-332, ul. Powstańców Śląskich 7a, tel.: +48 71 734 28 00, wroclaw@bdo.pl

Conclusion

Based on our review, nothing has come to our attention that causes us to believe that the accompanying semi-annual condensed consolidated financial statements have not been prepared, in all material respects, in accordance with the requirements of International Accounting Standard 34 Interim Financial Reporting, announced in the form of European Commission regulations.

BDO spółka z ograniczoną odpowiedzialnością sp.k. with its registered office in Warsaw

entered on the list of audit firms in number 3355

on behalf of which the review of semi-annual condensed consolidated financial statements was performed by

Anna Bernaziuk, PhD Certified Auditor No. 173

Warsaw, 7 September 2023