SASA POLYESTER SANAYİ A.Ş. — Proxy Solicitation & Information Statement 2026

Apr 10, 2026

SASA POLYESTER SANAYİ A.Ş.

THE BOARD OF DIRECTORS' INVITATION

TO THE ORDINARY GENERAL ASSEMBLY MEETING FOR THE YEAR 2025

Our Company’s Ordinary Shareholders General Assembly Meeting for the year 2025 will be held to discuss the agenda below on 5 May 2026, Tuesday, at 11:00, at the address of Sarıhamzalı Mahallesi Turhan Cemal Beriker Bulvarı No:559, Seyhan / Adana.

Shareholders, whose names are included in the shareholder list provided by the Central Registry Agency will be able to attend the General Assembly meeting. Our shareholders who have the right to participate the General Assembly meeting, may attend the meeting at the above mentioned address in person or through representatives or they may prefer to attend the meeting electronically in person or through representatives by using their secure electronic signature through the Electronics General Assembly System provided by the Central Registry Agency.

Shareholders can authorize their representatives by using Electronics General Assembly System or filling the below proxy form which is available at the Company headquarters and our company’s website addressed www.sasa.com.tr and notarizing their signature in line with provisions of the Capital Markets Board Communiqué numbered II- 30.1. Shareholders may also represent themselves through submitting the signed proxy form with the notarized signature circular of the shareholders.

For attending General Assembly meeting physically; all shareholders or their representatives should sign the list of attendance and

• Real person shareholders should submit their ID card.
• Legal person shareholders should submit their representatives’ ID card and authorization documents.
• Real and legal person’s representatives should submit their ID card and representation documents.
• Representatives authorized through the Electronic General Assembly System should submit ID card.

Our shareholders, who attend the meeting electronically through the Electronics General Assembly System, can get information about procedures and principles regarding participation, authorization of representatives, making proposals, expressing opinions and voting through the link of the Central Registry Agency web site http://www.mkk.com.tr.

Our shareholders and their representatives, who attend the meeting electronically are required to fulfill their obligations in accordance with the provisions of “Regulation on the General Assembly of Joint Stock Companies to be Held via Electronic Media” published on the Official Gazette dated 28 August 2012 and numbered 28395 and “Communiqué on Electronic General Assembly System to be Followed during the General Assembly Meetings of Joint Stock Companies” published on the Official Gazette dated 29 August 2012 and numbered 28396.

Our Company's Consolidated Financial Statements, Annual Activity Report of the Board of Directors, Independent Audit Reports, Profit Distribution Proposal of the Board of Directors, General Assembly Information Document for the year 2025 and compliance reports prepared within the scope of the Capital Markets Board Communiqué numbered II-17.1 on "Corporate Governance" are made available for the shareholders examination at the Electronic General Assembly System section of the Central Registry Agency web site, at the Investors Relation section of the company website addressed www.sasa.com.tr, on the Public Disclosure Platform at www.kap.org.tr, and also at the above address of the Investors Relations Unit of our Company at least three weeks before the meeting.

Our Shareholders are requested with respect to honor the meeting on the mentioned day and time.

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SASA POLYESTER SANAYİ A.Ş.

Agenda of the Ordinary General Assembly Meeting for the Year 2025
to be held on Tuesday, May 5, 2026, at 11:00

1. Opening and election of Meeting Chairmanship,
2. Reading, discussion and approval of the Annual Report of the Board of Directors for the year 2025,
3. Reading the summary of the Auditor's Reports for 2025 accounting period,
4. Reading, discussion and approval of the Financial Statements for 2025 accounting period,
5. Reading, discussion, and approval of the 2024 TSRS-Compliant Sustainability Report,
6. Approval of the changes made in the Board of Directors during the year in accordance with Article 363 of the Turkish Commercial Code,
7. Acquittal of each Board Member for 2025 activities of the Company,
8. Determination of the use of 2025 profit and the dividend and earnings share rates to be distributed,
9. Determination of the number and office term of the members of the Board of Directors, election of Board members according to the determined number of members, election of the Independent Board Members,
10. Determination of the wages of the members of the Board of Directors and their rights including remunerations, bonuses and premiums,
11. Decision on the selection of the Independent Audit Firm in accordance with the principles set forth in the Turkish Commercial Code No. 6102 and the Capital Markets Law No. 6362, and the regulations of the Public Oversight, Accounting and Auditing Standards Authority (KGK), as well as the selection of the Sustainability Auditor for the Assurance Audit of the TSRS-Compliant Sustainability Report for 2026,
12. Providing information on the transactions carried out under the Company’s expired share buyback program.,
13. Providing information to the General Assembly about the donations and grants made in 2025,
14. Determining the upper limit for donations to be made by the company in 2026,
15. Providing information to the General Assembly about securities, pledge, mortgage and surety granted in favor of third parties in the year 2025 and the income and benefits thereof,
16. Granting permission to the chairman and members of the Board of Directors to perform the transactions stipulated under the Articles 395 and 396 of the Turkish Commercial Code,

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PROXY FORM

TO THE BOARD OF DIRECTORS OF SASA POLYESTER SANAYİ A.Ş.

I hereby appoint ...introduced as detailed below as my proxy authorized to represent me, to vote, to make proposals and to sign the required papers in line with the views I express below at the Ordinary General Assembly of Sasa Polyester Sanayi A.Ş. that will convene on 5 May 2026, Tuesday, at 11:00, at the address of Sarıhamzalı Mahallesi Turhan Cemal Beriker Bulvarı No:559, Seyhan / Adana.

The Attorney’s (*);
Name Surname / Trade Name :
TR ID Number/ Tax ID Number, Trade Register and Number and MERSİS Number :

(*)Foreign shareholders should submit the equivalent information mentioned above.

A) SCOPE OF REPRESENTATION

The scope of representative power should be defined after choosing one of the options (a), (b) or (c) in the following sections 1 and 2.

1. About the agenda items of General Assembly;
   a) The attorney is authorized to vote according to his/her opinion.
   b) The attorney is authorized to vote on proposals of the attorney partnership management.
   c) The attorney is authorized to vote in accordance with the following instructions stated in the table.

Instructions:

In the event that the shareholder chooses the (c) option, the shareholder should mark “Accept” or “Reject” box and if the shareholder marks the “Reject” box, then he/she should write the dissenting opinion to be noted down in the minutes of the general assembly.

No	Agenda Items (*)	Accept	Reject	Dissenting Opinion
1.	Opening and election of Meeting Chairmanship,
2.	Reading, discussion and approval of the Annual Report of the Board of Directors for the year 2025,
3.	Reading the summary of the Auditor's Reports for 2025 accounting period,
4.	Reading, discussion and approval of the Financial Statements for 2025 accounting period,
5.	Reading, discussion, and approval of the 2024 TSRS-Compliant Sustainability Report,
6.	Approval of the changes made in the Board of Directors during the year in accordance with Article 363 of the Turkish Commercial Code,
7.	Acquittal of each Board Member for 2025 activities of the Company,
8.	Determination of the use of 2025 profit and the dividend and earnings share rates to be distributed,
9.	Determination of the number and office term of the members of the Board of Directors, election of Board members according to the determined number of members, election of the Independent Board Members,
10.	Determination of the wages of the members of the Board of Directors and their rights including remunerations, bonuses and premiums,

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No	Agenda Items (*)	Accept	Reject	Dissenting Opinion
11.	Decision on the selection of the Independent Audit Firm in accordance with the principles set forth in the Turkish Commercial Code No. 6102 and the Capital Markets Law No. 6362, and the regulations of the Public Oversight, Accounting and Auditing Standards Authority (KGK), as well as the selection of the Sustainability Auditor for the Assurance Audit of the TSRS-Compliant Sustainability Report for 2026,
12.	Providing information on the transactions carried out under the Company’s expired share buyback program,
13.	Providing information to the General Assembly about the donations and grants made in 2025,
14.	Determining the upper limit for donations to be made by the company in 2026,
15.	Providing information to the General Assembly about securities, pledge, mortgage and surety granted in favor of third parties in the year 2025 and the income and benefits thereof,
16.	Granting permission to the chairman and members of the Board of Directors to perform the transactions stipulated under the Articles 395 and 396 of the Turkish Commercial Code,

1. Special instruction related to other issues that may come up during General Assembly meeting and rights of minority:

a) The attorney is authorized to vote according to his/her opinion.
b) The attorney is not authorized to vote on these matters.
c) The attorney is authorized to vote for the items in accordance with the special instruction.

SPECIAL INSTRUCTIONS; The special instructions (if there is any) to be given by the shareholder to the attorney are stated herein.

B) The shareholder specifies the shares to be represented by the attorney by choosing one of the following.

1. I hereby confirm that the attorney represents the shares specified in detail as below

a) Order and Serial ():
b) Number/Group ():
c) Amount-Nominal Value :
ç) Privilege on Vote or not:
d) Bearer- Registered ():
e) Ratio of the total shares/voting rights of the shareholder:

()Such information is not required for dematerialized shares.
(*)For dematerialized shares, information related to the group will be given instead of numbers.

1. I hereby confirm that the attorney represents all my shares on the list, prepared by MKK (Central Registry Agency) the day before the Meeting, concerning the shareholders who could attend the General Assembly meeting.

SHAREHOLDER’S NAME SURNAME OR TITTLE: (*)

TR ID Number/ Tax ID Number, Trade Register and Number and MERSİS Number:

Address:

(*)Foreign shareholders should submit the equivalent information mentioned above.