Certificate under SEBI (Depositories and Participants) Regulations, 2018

SIMPLEX INFRASTRUCTURES LIMITED REGO, OFFICE: AN ISO 9001 : 2015 'stt{PLEx HousE'27, SHAKESPEARE SARANT. KOLKATA-700 017 (lNOlA) PHONES : +91 33 2301-1800. FAX : +91 33 2289-1468 certified company E-mail : simplexkolkata@simplexiofra.com, Website : wwwsimplexinlra.com CIN No. 145200 WB'1924 PLC 004969 0l/csNSE/001/95629 J'tly 7 ,2026 The Manager, Listing Depa.rftnent The Secretary National Stock Exchange of India Ltd. BSE Limited Exchange Plaza,Bandra Kurla Complex Phiroze Jeejeephoy Towers (Bandra East), Mumbai - 400 051 Dalal Street, Mumbai-40000 1 Scrip code - SIMPLEXINF Scip code 523838 The Secretary The Calcutta Stock Exchange Limited 7, Lyons Range Kolkara - 700 001 Scrip code - 29053 Sub: Complianc€ Certificate under Regulation 74(5) of SEBI (Depositories and Participants) Regulations, 2018 for the quarter ended 30th l\ne,2026 Dear Sirs, We are enclosing herewith the Certificate received &om M/s MCS Share Transfer Agent Ltd.., Kolkatq the Registrar aad Share Transfer Agent of the Company, confirming compliance under regulation 74(5) of SEBI (Depositories and Participants) Regulations, 2018 during the quaxter ended 30e June, 2026. This is for your information and record. Thanking you, Yours faithfully, For S INFRASTRUCTURES LIMITED i.tlp-, B.I,:EAJORIIf SR.VP & COMPANY SECRETARY Encl: As above 8RAICHES r "HEMKUNTH' 4TH FLOOR, 89. NEHRU PLACE, NEW DELHI-110 019 E : (011) 49444200, FAX : (011) 2646-5869 . HEAVITREE COMPLEX, I ST FLOOR. UNIT-C, NEW oOOR NO. 47, SPURTANK ROAD, CHETPET, CHENNAI-600 031 s : \044]4287-6129 #&$$muhr MCS Share Transfer Agent Limited 383IAKE G{RDH\SPTFIOOR KOLKAITA.7M4s ' ."t (- -r' PhoreNcr@4Ol2rOBI5?,Faaeaf2S@Errailnlffire<tmnaikqn WebsiEwwwrncsegistmuuaclNNO.u6Tt20WBAnptCI6Sf2 Date I O4lO7 /2026 SIMPLEX INFRASTRUCTURE LTD 2T,Shakespeare Sarani Kolkata-700017 Dear Sir/Madam, Sub: Compliance Regarding Confirmation of Dematerialisation as per Section 74(5) of (Depositories and Participants) Regulations,2OlS we confirm having sent the Demat rransfer Register for the period oLlo4/zoz6togolo6lzoz6 to the depository/depositories and as well as to all the stock exchanges,where your shares are listed. we also hereby confirm having Destroyed/Mutilated/cancelled all the securities received from the concerned DPs after Dematerialisation within the stipulated time. For MCS Share Transfer Agent Ltd. . oerurtned byriB, tuy nayffiX#f:; Tapas Authorized Signatory Name: TAPAS RAY