Please find enclosed the audio Recording of Earnings Call for the Quarter ended June 30, 2026

Investor Presentation August 2026 Snapshot 18+ years 3 467 Dealers 2,00,000+ of Industry Experience Manufacturing Units Pan-India Installations 18.75% 19.58% ROE: 11.51% INR 10,852 Mn 3 year Revenue 3 year PAT CAGR ROCE: 16.47% Total Order in Hand CAGR Investor Presentation 2 Company Overview • Prostarm Info Systems Ltd. was incorporated in 2008 and is engaged in designing, manufacturing, assembling, Operating Income (INR Mn) & EBITDA sale, service and supply of Energy Storage Equipment and Power Conditioning Equipment. Margins(%) • Its manufactured products include UPS system, Inverter system, Lift inverter system, Solar hybrid inverter 3,858 systems, Lithium-ion battery packs, BESS System, Servo-controlled voltage stabilizers, Isolation transformers 3,506 2,579 amongst others. • It offers both customized and standard products and solutions, manufactured and assembled at in-house 13.65% 12.98% 12.00% facilities and through third party contract manufacturers. 8.55% • In addition to the core manufactured products, it also provides comprehensive power solutions through sale FY24 FY25 FY26 Q1-FY27 and supply of third-party power solution products such as batteries, reverse logistics/end-of-life products, other products such as solar panel and allied products. Q1-FY27 Business Segmental Revenues (%) • Offers System Integration Solutions comprising end-to-end design, supply, deployment, and lifecycle management of enterprise technology infrastructure, enabling seamless integration across hardware, BESS-EPC, Value-Added software, and network environments to support modernization, enhanced security, and operational efficiency. Services , 1% • The company has also successfully executed and commissioned rooftop Solar PV Power Plants totaling 10.56 Manufactured MW at over 100 sites. Power Solution Products, 28% Third Party Power • Its value-added services include installation, rental, after-sales services, Annual Maintenance Contracts Solution Products & Other Products, (“AMC”) which supplements Power Solution Products, catering to a wide spectrum of customers and their requirements. Investor Presentation 3 Journey • Set up lithium-ion battery packs unit • Awarded INR 136 • Launched solar hybrid million order from inverter systems, • Expanded lithium-ion public sector • Completed UPS bagged L&T order battery facility to Secured a major Empaneled as OEM oil company installation at • Installed 300 KVA UPS with 1,00,000 kWh/year Pan-India UPS with PSU Bank (Bengal • Entered EPC segment Nagpur Airport isolation transformer in Navi Mumbai installation order Circle) for rooftop solar PV • Entered healthcare and IGBT rectifier • Empaneled with worth INR 100 Mn for 1-25 KVA power plants & defence sector • Acquired assets & know-how for West Bengal PHED for ATMs UPS systems as UPS supplier isolation transformer production Department 2008 2011 2017 2019 2021 2023 2025 2010 2014 2018 2020 2022 2024 • Listed on BSE & NSE Incorporated as Prostar Entered AMC services Converted to public Bagged a significant Set up Prostarm Energy Empaneled with • 1st EPC order in BESS Micronova Power by managing UPS and limited and renamed RailTel order for UPS Systems Pvt Ltd (PESPL) RailTel, NTPC from Adani Electricity of Systems Private Limited battery systems for a Prostarm Info Systems installation across as a 51% subsidiary to Vidyut Vyapar for 11MW/22 MWh capacity Nigam, and in Pune to provide global ATM brand Ltd.; empaneled with Indian Railways for expand manufacturing of • Secured LOA in BESS under BOOT model Airport Authority power backup and across India another major PSU bank Video Surveillance UPS, solar inverters, from Bihar State Power Generation of India conditioning solutions in the North-East Circle Systems and batteries Company Ltd for 30 MW / 120 MWh capacity; and under BOO model from KPTCL for 150 MW / 300 MWh capacity. • Acquired remaining 49% stake in PESPL to make it a wholly-owned subsidiary • Successfully executed single major order for capacity of 1.8 MW UPS for Industry Load Investor Presentation 4 Promoters Profile RAM AGARWAL PROMOTER, CEO & WHOLE-TIME DIRECTOR • Mr. Ram Agarwal holds over 18 years of experience in the fields of electrical and electronic control, energy storage, power conditioning and power consumption solutions. • He received the Engineering Excellence Award for young Entrepreneur in the Power Electronics Sector, by Divya Media Publications Private Limited in May 2022. • His roles and responsibilities include formulation and implementation of business strategy for growth and expansion of our business. • He has completed the degree of Bachelor of Commerce from the University of Calcutta. SONU RAM AGARWAL PROMOTER & SENIOR MANAGEMENT PERSONNEL • Mrs. Sonu Ram Agarwal has over 18 years of experience in the fields of finance and business administration. • She is the Business Head – Servo & Transformer of our Company. • She is responsible for the day-to-day administrative activities in the Company. • She has completed her degree in Master of Business Administration in Finance from KS School of Business Management, Gujarat University. VIKAS SHYAMSUNDER AGARWAL PROMOTER & WHOLE-TIME DIRECTOR • Mr. Vikas Shyamsunder Agarwal holds over 18 years of experience in the fields of power conditioning and power consumption solutions. • His roles and responsibilities include procurement and inventory management. Investor Presentation 5 Experienced Board Of Directors TAPAN GHOSE MITALI CHATTERJEE BHARGAV CHATTERJEE GOUTAM PAUL GANESH BASANT SHIVKUMAR MADANLAL CHAIRMAN & NON-EXECUTIVE NON-EXECUTIVE NON-EXECUTIVE PANSARI BASER MANAGING DIRECTOR INDEPENDENT INDEPENDENT DIRECTOR INDEPENDENT NON-EXECUTIVE NON-EXECUTIVE DIRECTOR DIRECTOR INDEPENDENT DIRECTOR INDEPENDENT DIRECTOR Mr. Tapan Ghose Mrs. Mitali Chatterjee Mr. Bhargav Chatterjee Mr. Goutam Paul has Mr. Ganesh Pansari, a Mr. Shivkumar Baser. has over 30 years of has over 42 years of has over 30 years of over 30 years of CA, has over 8 years of A CA, has over 20 experience in electrical experience in experience in the fields experience in project experience in statutory, years of experience in and electronic control, cybersecurity of insurance, management across tax, and internal audits. bank, statutory, energy storage, and assurance, GRC accountancy and mobile banking, concurrent, and stock power solutions. He (governance, risk, and taxation. payment systems, IT audits. oversees business compliance), and infrastructure, and strategy, administration, security management implementation and expansion. systems. projects. Investor Presentation 6 Key Senior Managerial Personnel ABHISHEK JAIN UMESH DAMODAR IKHE CHIEF FINANCIAL OFFICER VICE PRESIDENT TECHNICAL Abhishek Jain, CFO since October 2020, is a CA with more than 2 decades of experience in accounts, credit analysis, and banking. He has Umesh Damodar Ikhe, holds over 17 years of experience in worked with reputed firms like Axis Bank, Tata Capital, Siemens production management, project implementation, and after-sales Financial, and Srei Infrastructure. service within the manufacturing sector. SACHIN GUPTA SHILPA DUGAR COMPANY SECRETARY AND COMPLIANCE OFFICER CHIEF SALES OFFICER Shilpa Dugar brings over 15 years of experience in sales. She has Sachin Gupta, appointed as Company Secretary and Compliance Officer been associated with the Company since 2014 and leads in August 2024, is a Fellow Member of the Institute of Company Government, Banking and institutional sales while driving business Secretaries of India with over 11 years of experience in handling development and customer engagement. corporate and secretarial compliance. CHANDAN HEMANT CHAUDHARI AJAY SATISH RAO FINANCIAL CONTROLLER VICE PRESIDENT – OPERATIONS Ajay Satish Rao brings over 15 years of experience in operations, Chandan Hemant Chaudhari, the Finance Controller of the Company project management and service delivery. He has previously worked since December 1, 2022, is a qualified CA [Showing first 8,000 characters — download PDF for full document]