Ciech S.A.

Audit Report / Information • Sep 23, 2021

Deloitte Audyt Spółka z ograniczoną odpowiedzialnością Sp. k. al. Jana Pawła II 22 00-133 Warszawa Polska

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INDEPENDENT AUDITOR'S REPORT ON REVIEW OF INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

To the General Shareholders' Meeting and the Supervisory Board of Ciech S.A.

Introduction

We have reviewed the accompanying interim condensed consolidated financial statements of Ciech Group (hereinafter: the "Group"), for which Ciech S.A. with its registered office in Warsaw, Wspólna 62 is the Parent Company (hereinafter: the "Parent"), comprising: the condensed consolidated statement of financial position prepared as at 30 June 2021, condensed consolidated statement of profit or loss, condensed consolidated statement of other comprehensive income, condensed consolidated statement of changes in equity, condensed consolidated statement of cash flows for the period from 1 January 2021 to 30 June 2021 and selected explanatory notes ("interim condensed consolidated financial statements").

The Management Board of the Parent is responsible for the preparation and presentation of these interim condensed consolidated financial statements in accordance with International Accounting Standard 34 "Interim Financial Reporting" announced in the form of Commission Regulations.

Our responsibility is to express a conclusion on these interim condensed consolidated financial statements based on our review.

Scope of Review

We conducted our review in accordance with the International Standard on Review Engagements 2410 "Review of Interim Financial Information Performed by the Independent Auditor of the Entity" in the version adopted as the National Standard of Review 2410 by the National Council of Statutory Auditors.

A review of consolidated financial statements consists of making inquiries, primarily of persons responsible for financial and accounting matters, and 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 line with the wording of International Standards on Auditing and consequently does not enable usto obtain assurance thatwewould become aware of allsignificant matters that might be identified in an audit. Accordingly, we do not express an audit opinion on these interim condensed consolidated financial statements.

Conclusion

Based on our review, nothing has come to our attention that causes usto believe that the accompanying interim condensed consolidated financial statements are not prepared, in all material respects, in accordance with International Accounting Standard 34 "Interim Financial Reporting" announced in the form of Commission Regulations.

Auditor conducting the review on behalf of Deloitte Audyt spółka z ograniczoną odpowiedzialnością sp. k. — entity entered under number 73 on the list of auditors kept by the National Council of Statutory Auditors:

Adrian Karaś Certified auditor No. 12194

Warsaw, 23 September 2021

This document is a foreign language version of the original Independent Auditor's Report issued in Polish version and only the original version is binding. This document has been prepared for information purposes and could be used only for company's internal purposes. In case of any discrepancies between the Polish and English version, the Polish version shall prevail.

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