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SIMPLEX !N FRASTRUCTU RES LIMITED REGD. OFFICE: AN ISO 9001 : 2015 's[itPLEX HOUSE 27, SHAKESPEARE SARANT, KOLKATA-7oo 017 (lNDlA) certified company PHONES | +91 33 2301-1600, FAX : +91 33 2289-1468 E-mail : simplexkolkata@simplexinfra.com, Website : www.simplexinfra.com CIN No. 145209 WB 1924 PLC 004969 0l/csalsE/001/95659 August 29,2026 The Manager, Listing Department The Secretary National Stock Exchange oflndia Ltd. BSE Limited Exchange Plaza,Bandra Kurla Complex Phiroze Jeejeephoy Towers (Bandra East), Mumbai - 400 051 Dalal Street, Mumbai-400001 Scrip code - SIMPLEXINF Scip code 523838 The Secretary The Calcutta Stock Exchange Limited 7, Lyons Range Kolkata - 700 001 Scrip code - 29053 Dear Sir, Sub; Notice ofBook Closure, e-voting, Cut- offdate for 108rh Annual General Meeti[g ofthe Company This is to inform you that the 108rh Annual Ceneral Meeting (AGM) ofthe Company is schedule to be held on Wednesday, 23'd September, 2026 at 3.00 p.m. through Video Conferencitrg ("VC") I Other Audio- visual Means ("O AVM") in accordance with the relevant circulan issued by the Miristry of Coryorate Affairs and Securities and Exchange Boaxd of India ("relevant circulars") Furthet notice is hereby given that pursuant to Section 91 ofthe Companies AcL 2013, the Register of Members and Share Transfer Books of the Company will remain closed from Thursday, 17rh September 2026 to Wednesday, 23'd September, 2026 (both days inclusive). The remote e-voting period begins on Saturday, 19th September 2026 at 9.00 A.M. and ends on Tuesday,22'd September, 2026 at 5.00 P.M The Company has fixed Wednesday, 16rh September, 2026 as the "Cut-oIT Date" for the purpose of determining the members eligible to vote on the resolutions set out in the Notice. In compliance with the relevant circulars, the Notice conveying the said AGM, Annual Report for tlle Financial Year ended 31,'March, 2026,along with Board's Report , Auditor Report arld other documents required to be attached thereto, is baing sent to all the members ofthe Company whose email addresses are registercd with the company/ Depository Participant(s) within the time as required under the Companies Act 2013 You are requested to inform your members accordingly and display this to your Notice Boards/Website. Yours faithfully, For Sllr4?LEX INFRASTRUCTURES Ll MITED / ,\-,- 2-bcidrt- B.L.dIJoRIA' SR.VP & COMPANY SECRETARY BRANCHES i "HEMKUNTH' 4TH FLOOR, 89, NEHRU PLACE, NEW DELHI-110 019 : (011)49444200, FAi( : [011) 2646-5869 HEAVITREE COMPLEX, 1ST FLOOR, UNIT-C, NEW DOOR NO. 47, SPURTANK ROAD, CHETPET, CHENNAI-600 031 | (044) 4287-6129