Disclosure Regarding the Confirmation of the Corporate Action Timetable for the Financial Year Ended 31 December 2025.

May 6, 2026

Kuwait

With reference to the above-mentioned subject and in compliance with the Capital Markets Authority (CMA), kindly find the attached Supplementary Disclosure Form (Appendix No. 12) duly completed, along with the Corporate Action Disclosure Form duly certified by the Kuwait Clearing Company.

Disclosure Regarding the Confirmation of the Corporate Action Timetable for the Financial Year Ended 31 December 2025.

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Supplementary Disclosure regarding the Contract was signed for the Project for the Construction of Flowlines and Associated Works for Kuwait Oil Company Tender No.: RFP-2141028

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Disclosure of the Results of the Ordinary General Assembly Meeting of Combined Group Contracting Co. (K.S.C.) Held on Wednesday, 29 April 2026

APPROVAL OF THE CAPITAL MARKETS AUTHORITY FOR THE RENEWAL OF THE RIGHT TO DEAL IN THE COMPANY'S SHARES (TREASURY SHARES).

SUPPLEMENTARY DISCLOSURE REGARDING THE MINUTES OF THE ANNUAL ANALYSTS AND INVESTORS CONFERENCE OF COMBINED GROUP CONTRACTING COMPANY FOR 2025

Disclosure regarding the Award of the Project for the Construction of Flowlines and Associated Works for Kuwait Oil Company Tender No.: RFP-2141028

SUPPLEMENTARY DISCLOSURE REGARDING THE CASE FILED AGAINST Ministry of Public Works

DISCLOSURE REGARDING THE CASE FILED AGAINST Ministry of Public Works

DISCLOSURE REGARDING THE CASE FILED AGAINST KUWAIT OIL COMPANY

Date of the Ordinary General Assembly Meeting of Combined Group Contracting Company (K.S.C.) for the Financial Year Ended on 31 December 2025

Disclosure of Material Information regarding the 2025 Annual Analysts/ Investors Conference Meeting

Board of Directors Meeting Results

SUPPLEMENTARY DISCLOSURE REGARDING APPROVAL FOR ISSUANCE OF CHANGE ORDER NO. (3) FOR TENDER CONTRACT NO. RFP2047821 — EXTERNAL WORKS FOR JURASSIC PRODUCTION FACILITIES IN NORTHERN KUWAIT AREAS

Board of Directors meeting

SUPPLEMENTARY DISCLOSURE REGARDING THE SIGNING OF THE CONTRACT FOR THE INFRASTRUCTURE WORKS AND SERVICES PROJECT FOR THE AHMADI INNOVATION VALLEY (AIV) TENDER NO.: RFP-2151064

DISCLOSURE REGARDING THE AWARD OF CONSTRUCTION OF FLOWLINES AND ASSOCIATED WORKS FOR KOC TENDER NO.: RFP-2141028

SUPPLEMENTARY DISCLOSURE REGARDING CHANGE ORDER NO. (2) FOR TENDER NO.: JO/SC488/MP22, UNDER THЕ AL-WAFRA JOINT OPERATIONS (KUWAIT GULF OIL COMPANY AND CHEVRON SAUDI ARABIA), RELATED TO SUPPORT SERVICES FOR THE GAS GATHERING PROJEСТ.

Supplementary Disclosure regarding the establishment of a company in the United Arab Emirates Affiliated with Combined Group Contracting Emirates (L.L.C.), a subsidiary of the Parent company.

SUPPLEMENTARY DISCLOSURE REGARDING SIGNING THE CONTRACT. CONCERNING CONSTRUCTION OF PERIMETER FENCE AND ASSOCIATED FACILITIES AT AIV. Tender No: RFP - 2151067

SUPPLEMENTARY DISCLOSURE REGARDING Signing the contract. Tender no: RFP-2134157, for a new NK EW INJECTION NETWORK FOR RA AREA, Owner: Kuwait Oil Company.

SUPPLEMENTARY DISCLOSURE REGARDING Signing the contract. Tender no: RFP-2134156, for a new NK EW INJECTION NETWORK FOR SA/BA AREA, Owner: Kuwait Oil Company.

SUPPLEMENTARY DISCLOSURE REGARDING SIGNING THE CONTRACT, CONCERNING "CONSTRUCTION OF INFRASTRUCTURE WORKS AT AIV"

SUPPLEMENTARY DISCLOSURE REGARDING THE AWARD OF INFRASTRUCTURE AND UTILITIES SUPPLY FOR AHMADI INNOVATION VALLEY (AIV) TENDER NO.: RFP-2151064

Supplementary Disclosure Regarding the Minutes of the Ordinary General Assembly Meeting of The Combined Group Contracting Company, Following Their Approval by the Ministry of Commerce and Industry

Response to the Bankruptcy Judge’s Decision Published in Kuwait Alyoum Newspaper, Issue No. 1774 dated 18/01/2026

Formation of the members of the Board

Results of Ordinary General Assembly Meeting

Transition from the main market to the Premier Market

Award of the project construction of infrastructure works at AIV to Combined Group Contracting Company

Award of the project construction of infrastructure works at AIV to Combined Group Contracting Company

Date of the Ordinary General Assembly Meeting of Combined Group Contracting Company (K.S.C.)

Tenders and projects in which the Company has secured first rank (lowest bid) and for which no official award letters have been received to date.

Tenders and projects in which the Company has secured first rank (lowest bid) and for which no official award notifications have been issued to date.

Award of the project construction of infrastructure works at AIV to Combined Group Contracting Company

Clarification

Disclosure of an Insider’s Transaction in the Shares of The Combined Group Contracting Company

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Award of tender to Combined Group Contracting Company (Main Headquarters – Kuwait) – According to Kuwait Al-Youm, Issue No. 1767 Works for a new network to inject surplus water in North Kuwait, in the Rawdatain area, for Kuwait Oil Company (KOC).

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Opening the Nomination Process for a Complementary Board Member to Complete the Current Term 2024–2026

Indication in the commercial register

Financial results for the period ending 30.09.2025

Clarification from subsidiary

Resignation of a board member

Board of Directors meeting Board Meeting will be held on 12/11/2025

Minutes of the Extraordinary General Assembly meeting - approved by the Ministry of Commerce and Industry

Results of extraordinary General Assembly Meeting

A contract was Signed for Tender to CGC (H.O- Kuwait) Construction of Flowlines works for Injector wells in Southern Kuwait & Eastern Kuwait-II Areas

A contract was Signed for Tender to CGC (H.O- Kuwait) Flow lines Works for producing wells in Southern Kuwait

Complementary clarification From a subsidiary (Combined International Real Estate Company)

Clarification From a subsidiary (Combined International Real Estate Company)

Clarification Signing a market maker services agreement with the national investments company

Capital Market Authority approval to renew the right to buy or sell the company's shares (treasury shares)

Extraordinary General Assembly Meeting The Extraordinary General Assembly Meeting will be held on 05/11/2025

Tender in which we are ranked first (Lowest Bidders) and have not received any official awards, (H.O - Kuwait) A new network for injecting surplus water into northern Kuwait in the Al-SABRIYA/BAHRA area

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Clarification on unusual trading

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Tender awarded to Combined Group Contracting Co. (H.O - Kuwait) - Email Construction of Flowlines works for Injector wells in Southern Kuwait & Eastern Kuwait-II Areas

Signing Contract to Combined General for General Trading & Contracting Co. W.L.L. Subsidiary Company Tender for metal plates for traffic management

"A Contract "was signed by CGC Dubai Branch Implementing Internal Roads in WADI AL AMARDI

Tender awarded to Combined Group Contracting Co. (H.O - Kuwait) AL-KUWAIT AL- YAWM (Gazette) -Edition No 1755 Flow lines Works for producing wells in Southern Kuwait

Tender awarded to Combined Group Contracting Co. (H.O - Kuwait) - Email Flow lines Works for producing wells in Southern Kuwait

Variation order to CGC (H.O- Kuwait) The support services for the gas Gathering project.

Signing a reconciliation and debt settlement contract between Combined Group contracting Company (K.S.C), & Petrofac International Limited.

A contract was Signed for Tender to CGC (H.O- Kuwait) Fencing & associated security system

Clarification

Tender awarded to Combined General for General Trading & Contracting Co. W.L.L. Subsidiary Company Tender for metal plates for traffic management

Financial results for the period ending 30.06.2025

Board of Directors meeting Board Meeting will be held on 13/08/2025

Tender in which we are ranked Second (Lowest Bidders) and have not received any official awards, (H.O - Kuwait) Construction of Flowlines works

Title العنوان "A Contract "was signed by subsidiary (Combined Group Contracting Company Emirates LLC - Abu Dhabi) Development and Upgrade of Emirates Road

"A Contract "was signed by subsidiary (Combined Group Contracting Company Emirates LLC)– Subsidiary Company AL NAHDA

Results of the company's board of directors meeting (by pass)

Remeasured items Implementation of infrastructure improvement works for Qordoba - Phase (11)

Board of Directors meeting Board Meeting will be held on 27/07/2025

"A Contract "was signed by subsidiary (Combined Group Contracting Company Emirates LLC)– Subsidiary Company Ras Al Khaimah