Certificate under Reg. 74(5) of SEBI (DP) Regulation, 2018 for the Quarter ended on September 30, 2026

8th October 2026 The Manager- Listing Department, BSE Limited P.J. Towers, Dalal Street, Fort, Mumbai- 400001, Maharashtra, India. Scrip ID/Code: Desco/544387 Subject: Certificate under Regulation 74(5) of Securities and Exchange Board of India (Depositories and Participants) Regulations, 2018 for the Quarter ended on 30th September 2026 Respected Sir/ Madam, We submit herewith the confirmation certificate received from BIGSHARE SERVICES PRIVATE LIMITED, Registrar and Share Transfer Agent (RTA) as per Regulation 74(5) of the Securities and Exchange Board of India (Depositories and Participants) Regulations, 2018 for the Quarter ended on 30th September 2026. Kindly take the above information on your records. Thank You! You’re faithfully, For, DESCO INFRATECH LIMITED CS Tripti Gaggar Company Secretary & Compliance Officer M. No.: A79044 Ref No. BSS/74(5) Date: 08/10/2026 DESCO INFRATECH LIMITED A-703, SWASTIK UNIVERSAL, DUMAS ROAD, NEXT TO VALENTINE THEATRE, UMRA, SURAT, GUJARAT, 395007 Dear Sir/Madam, Sub: Certificate under Regulation 74(5) of the SEBI (Depositories and Participants) Regulations, 2018 for the quarter ended 30th September 2026. Ref: NSDL/CIR/II/5/2019 dated 25th January 2019 DSL/OPS/RTA/POLICY/2019/14 dated 25th January 2019. SEBI vide its letter ref no. MRD/DOP2/DSA2/OW/2019/2498/1 dated 24/01/2019 Dear Sir/Madam, With reference to the captioned regulation, we hereby confirm that the said Regulation is not applicable to the Company, as the entire holding of the Company’s shares are in demat form and we have not received any request from any members of the Company for rematerialisation or dematerialisation; during the quarter ended on 30th September 2026. We request you to kindly take note of the above in your records. Thanking you, Yours faithfully, For Bigshare Services Pvt. Ltd., Sandeep More Authorised Signatory