Submission of Annual Report of the Company for the year ended 31st March, 2026 along with AGM Notice.

SIMPLEX INFRASTRUCTURES LIMITED REGD.oFFICE AN ISO 9001 : 2015 'S|MPLEX HOUSE'27, SHAKESPEARE SARANt, KOLKATA,7oo 017 (tNDtA) certified company PHONES | +91 33 230i-1600, FAX: +91 33 2289-1468 E-mail : simplexkolkata@sifi ploxinfra.com, Website : www.simplexinfra.com CIN No. 145209 WB 1924 PLC 004969 01/csa{sE/oo1/95658 Atgust29,2026 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-40000 I 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: Submission of Annual Report ofthe Company for the year ended 3l't Maxch, 2026, Pursuant to Regulation 34 (1 ) and 53(2) ofthe SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 Pursuant to Regulation 34 (1) and 53(2) of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 20 I 5 , We attached herewith soft copy of our Annual Report of the Company for the year ended 3 1 't March,2026 along with AGM Notice. We request you to take the same on your records and display on the website. Yours faithfully, FoT SII{PLEX INFRASTRUCTURES LIMITED r/ la).l thtl --. B.L.BAJORIA SR.VP & COMPANY SECRETARY BRAI'ICHES : 'HEMKUNTH' 4TH FLOOR, 89, NEHRU PLACE, NEW DELHI-1'10 019 : (011)49444200, Fr\,\ : (011) 2646-5869 HEAVITREE COMPLEX, 1ST FLOOR, UNIT-C, NEW DOOR NO.47, SPURTANK ROAD, CHETPET, CHENNAI-600 031 | (044) 4287-6129 Strength . Stability . Sustainability . Success ANNUAL REPORT 2025-26 SIMPLEX INFRASTRUCTURES LIMITED SIMPLE SOLUTIONS FOR COMPLEX STRUCTURES Contents Corporate Information 09 Chairman’s Message 11 Board’s Report BOARD OF DIRECTORS 33 Management Discussion and Analysis y Mr. Rajiv Mundhra, Chairman 43 Report on Corporate Governance y Mr. Samiran Kumar Bhattacharyya, Whole-time 66 Independent Auditor’s Report Standalone Director (w.e.f. 13th August, 2025) & CFO (w.e.f 1st 90 Standalone Financial Statements September, 2025) 156 Independent Auditor’s Report Consolidated y Mr. Pratap Kumar Chakravarty, Independent Director 168 Consolidated Financial Statements y Mrs. Indira Biswas, Independent Director 240 Statement containing salient features of the financial statement of Subsidiaries / Associate y Dr. Dinabandhu Mukhopadhyay, Independent Companies / Joint Ventures Director y Mr. Shamik Dasgupta, Non-Executive Director y Mr. Gurumurthy Ramanathan, Nominee Director y Mr. Subrata Kumar Ray, Independent Director y Mr. Sukumar Dutta, Whole-time Director & CFO The Vision (Up to 31st August, 2025) To execute projects with consistent quality assurance, COMPANY SECRETARY cost control and adherence to milestones in a safe y Mr. Banwari Lal Bajoria, Sr. V.P. and Company environment as per customer requirements. Secretary AUDITOR Binayak Dey & Co. The Leadership Chartered Accountant, Kolkata To sustain the position as a leader in foundation REGISTRAR & SHARE TRANSFER AGENT technology, general civil engineering and construction. MCS Share Transfer Agent Limited, Kolkata D REGISTERED OFFICE “Simplex House” The Winning Edge 27, Shakespeare Sarani, Kolkata – 700 017 Tel: (033) 23011600, 22891476-78, 71002600, To promote the culture of sharing rich and varied CIN: L45209WB1924PLC004969 experience with staff members, as also with clients. And thereby benefit and help the growth of the construction Email: secretarial.legal@simplexinfra.com fraternity and society at large. Web: www.simplexinfra.com Strength Defined by resilience. Demonstrated through excellence. Stability Built on trust. Sustained by consistency. Sustainability Creating value that endures beyond today. Success Measured by impact. Earned through commitment. 7.5KM Long Double Line Pipe Conveyor from Power Plant to Mine End for NTPC 3X600 MW Thermal Plant at North Karanpura, Jharkhand. Annual Report 2025-2026 SSiimmpplleexx IInnffrraassttrruuccttuurreess LLiimmiitteedd Strength Circulating Water Pump House, Forebay & Circulating Water Channel for 2X800 MW Adani Power Project (PH-II) at Raigarh, Chhattisgarh The Strength to Build. The Resolve to Endure. Every milestone reflects our unwavering commitment to quality, integrity and engineering excellence—creating lasting value for our stakeholders. Strength is more than engineering capability. It is the resilience to overcome challenges, the expertise to deliver with precision and the determination to create enduring value. 000222 Annual Report 2025-2026 DirBeocatrodrs’s’ RReeppoorrtt MMaannaaggeemmeenntt DDiissccuussssiioonn && AAnnaallyyssiiss CCoorrppoorraattee GGoovveerrnnaannccee Strength is Built Every Day Air Cooled Condenser 5.4Mtr Dia and 54.8 Mtr Height RCC Hollow Column using Slipform Technology for NTPC 3X660 MW Thermal Power Plant at North Karanpura, Jharkhand. Every project reflects the collective strength of our people, our experience and our unwavering commitment to excellence. Strength is not measured by what we build alone, but by the trust we inspire. Annual Report 2025-2026 0033 SSiimmpplleexx IInnffrraassttrruuccttuurreess LLiimmiitteedd Stability Built on trust. Sustained by consistency. Every achievement reflects disciplined execution, dependable partnerships and an unwavering commitment to delivering enduring value. 765KV Anpara D Jhusi Transmission Line 0044 AAnnnnuuaall RReeppoorrtt 22002255--22002266 DirBeocatrodrs’s’ RReeppoorrtt MMaannaaggeemmeenntt DDiissccuussssiioonn && AAnnaallyyssiiss CCoorrppoorraattee GGoovveerrnnaannccee Consistency Creates Confidence Water Treatment Plant for 2X800 MW Power Plant for Adani Power Project Raigarh, Chhattisgarh True stability lies in honouring every commitment, maintaining the highest standards and delivering with integrity, every single time. Trust is built over time, one promise kept at a time. AAnnnnuuaall RReeppoorrtt 22002255--22002266 0055 SSiimmpplleexx IInnffrraassttrruuccttuurreess LLiimmiitteedd Sustainability Built to Endure. Committed to Tomorrow. Our commitment to sustainability extends beyond what we build—it is reflected in the way we create lasting value for our stakeholders, our communities and future generations. Success Measured by impact. Earned through commitment. We believe success is not defined by projects completed, but by the lives touched, relationships built and trust we continue to inspire. Planning, Design & Construction of Govt. Medical College at Jhargram for WBSCL West Bengal 0066 AAnnnnuuaall RReeppoorrtt 22002255--22002266 DBiroeacrtdo’rss ’’ RReeppoorrtt MMaannaaggeemmeenntt DDiissccuussssiioonn && AAnnaallyyssiiss CCoorrppoorraattee GGoovveerrnnaannccee Success is Shared Our achievements belong equally to our employees, customers, partners, investors and communities who continue to place their trust in us. Success grows stronger when it is shared. AAnnnnuuaall RReeppoorrtt 22002255--22002266 0077 Simplex Infrastructures Limited One Legacy. Four Values. Stability Endless gives us Possibilities. confidence. Together, they define the Simplex of today and inspire the Simplex Strength of tomorrow. gives us resilience. Sustainability gives us purpose. Success gives us momentum. 0088 Annual Report 2025-2026 Board’s Report Management Discussion & Analysis Corporate Governance Chairman's Message Dear Shareholders, It gives me great pleasure to present the Annual Report of your Company, Simplex Infrastructures Limited, for the financial year ended March 31, 2026. This year is particularly special as the Company proudly commemorates 101 years of its journey. Reaching this remarkable milestone is a testament to Simplex’s enduring legacy, resilience and commitment to excellence. The Indian economy continued to demonstrate resilience during the year, supported by sustained public investment in infrastructure, increasing urbanisation and the Government’s continued emphasis on capital expenditure. At the same time, g [Showing first 8,000 characters — download PDF for full document]