Investor Presentation for the quarter ended June 30, 2026

Date: August 11, 2026 To, To, The Manager The Manager Listing Department Corporate Relationship Department National Stock Exchange of India Limited BSE Limited Exchange Plaza, Bandra Kurla Complex Floor 25, Phiroze Jeejeebhoy Towers, Bandra (East), Dalal Street, Mumbai - 400 051 Mumbai - 400 001 NSE Symbol: DIFFNKG BSE Scrip Code - 544264 Dear Sir/Madam, Subject: Investor/Result Presentation Pursuant to Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, we are enclosing herewith the Investor/ Result Presentation on the Un- Audited Financial Results of the Company for the quarter ended June 30, 2026. The said presentation will also be disseminated on the Company's website at https://diffusionengineers.com/investors-relation/ Thanking You. Yours faithfully, For Diffusion Engineers Limited Chanchal Jaiswal Company Secretary and Compliance Officer Membership no. A67136 Enclosed as above. August 2026 Safe Harbor This presentation contains “forward looking statements” including, but without limitation, statements relating to the implementation of strategic initiatives, and other statements relating to Diffusion Engineers Limited (DEL) and its group companies’ future business developments and economic performance. While these forward-looking statements indicate our assessment and future expectations concerning the development of our business, a number of risks, uncertainties and other unknown factors could cause actual developments and results to differ materially from our expectations. These factors include, but are not limited to, general market, macro‐economic, government and regulatory trends, movements in currency exchange and interest rates, competitive pressures, technological developments, changes in the financial conditions of third parties dealing with us, legislative developments, and other key factors that could affect our business and financial performance. Diffusion Engineers Limited undertakes no obligation to periodically revise any forward-looking statements to reflect future/likely events or circumstances. Company Overview Business Overview Industry Overview Financial Highlights COMPANY OVERVIEW About Us - Overview Presentation with media with solid fill Note: Please use “Ctrl + Click” to watch the video About Us DIVERSIFIED PRODUCT PORTFOLIO TRUSTED PARTNERSHIPS ACROSS INDUSTRIES ▪ Trusted, long-term partnerships with leading ▪ Special welding consumables, wear plates players across multiple geographies. and heavy engineering equipment STRATEGICALLY LOCATED MANUFACTURING FACILITY INCORPORATED IN 1982 ▪ 5 manufacturing units located at Nagpur ▪ Established as private limited Company ▪ Over 4 decades of Experience ▪ Proposed expansion is expected to commence in Q2 FY27. EXPANDING GLOBAL FOOTPRINT 5 YEAR CONSOLIDATED REVENUE CAGR : 21% ▪ 35+ Countries served ▪ Consistent growth in terms of ▪ Regions that we Export -Middle East, Far revenues and profitability East, South Asia, Africa, Eastern Europe, Russia, North America etc. ORDER IN HAND AS ON 30th 11,000+ PROJECTS COMPLETED June 2026 ▪ Across Cement, Steel, Power, Engineering, ▪ Rs. 2,096.60 Mn Sugar, Defense, Railways, Mining and Oil & Gas. "Providing innovative engineering solutions for enhanced industrial performance and efficiency" Vision, Mission & Core Values Core Values Vision Reliability Dedicated to driving the World’s Engineering progress with our Our promise is our performance. solutions that transform industries. By building trust and absolute reliability, we aim to be the go-to partner for industries facing high stakes and complex challenges where success is paramount Precision Excellence is engineered, not improvised. Mission Speed with Clarity We empower the industrial sector to overcome wear, reduce Fast, but never frantic. downtime, and future-proof their operations. By mastering the science of super conditioning, metallurgy, and heavy engineering, we deliver top-tier welding consumables, proprietary alloys, wear Growth Mindset parts, services and fully integrated solutions — all under one roof. The future is built by learners. Driven by speed, precision, and customer centricity, we don’t just solve problems — we engineer possibilities Integrity & Sustainability We do what’s right, not what’s easy. Journey So Far ▪ Converted from Pvt. Ltd. to Public Ltd. Company ▪ Acquired land (in part) ▪ Acquired land (N-79) for manufacturing for manufacturing ▪ Incorporated as facility at Unit I facility at Unit II Private Limited ▪ Acquired a subsidiary ▪ Acquired land Company Company, Diffusion (Khasra no. 35 & 36) ▪ Commenced Super Conditioning for manufacturing manufacturing of Services Pvt. Ltd. facility at Unit IV welding electrodes 1994 1997 - 2000 2012 1982 - 93 1995 2006 - 2011 ▪ Acquired land ▪ Commencement of ▪ Acquired land (Khasra no. 38/1, 38/ (in part) for production of flux 2 and 38/3) for manufacturing manufacturing cored wires and facility at Unit IV facility at Unit I wear plates ▪ Established subsidiary company, ▪ Acquired land Diffusion Hernon Adhesive and (N-78) for Sealant Private Limited manufacturing ▪ Invested in overseas joint venture facility at Unit II Company LSN Diffusion Limited (United Kingdom) Journey So Far ▪ Established subsidiary Company in Singapore ▪ Incorporated a new subsidiary Diffusion Engineers in the UAE Singapore Pte Ltd. ▪ Received domestic order worth Rs. 48 Cr for Supply of ▪ Invested in associate High-Pressure Grinding Rolls subsidiary in Singapore ▪ Acquired land for ▪ Undertook expansion (HPGRs) forCement industry Mecdiff Sdn Bhd manufacturing of manufacturing (Malaysia) facility at Unit III facility at Unit IV 2014 2016 2024 2013 2015 2022 2025 ▪ Established a step- down ▪ Set up and commenced ▪ Acquired leasehold land Subsidiary Company of operations at Unit IV (Plot Nos. 33-B/1/1/ & 33-B/1/1/ Singapore Subsidiary in Part, MIDC, Hingna, Sonegaon Philippines, Diffusion Wear District, Nagpur, Maharashtra) Solutions Philippines Inc forthe Proposed Facility ▪ Listed on NSE and BSE through successful IPO Strong & Experienced Management Team Mr. Prashant Garg Dr. Nitin Garg Mrs. Chitra Garg Mr. Anil Trigunayat Chairman and ManagingDirector Non-Executive Director Non-Executive Director Independent Director Mr. Sherry Oommen Mrs. Deepali Bendre Mr. Abhishek Mehta Independent Director Independent Director Chief Financial Officer Key Strengths SYNERGISTIC BUSINESS MODELS FOCUSED SERVING INDUSTRY MAJOR PLAYERS DIRECTLY ON FORWARD INTEGRATION AS WELL AS THROUGH OEMS ▪ Transitioning from a manufacturer of special welding ▪ Serves a diverse clientele, including both OEMs in the electrodes to producing flux-cored wires, wear plate, cement, steel, power, mining, engineering sectors as wear parts and now heavy engineering leads to well as direct customers. This significantly adds to our broadenedscopeandexpertiseintheindustry credibility CONSISTENTFINANCIAL LONG - STANDING RELATIONSHIPS WITH PERFORMANCE CUSTOMERS ACROSS INDUSTRIES ▪ Achieved CAGR of 21.23% for operating ▪ Over four decades of business operations with Income 22.48% for EBITDA and 32.28% a strong and diverse customer base with more for PAT over 5 years on consolidated than80%repeatcustomers Basis. EXPERIENCED PROMOTERS AND STRONG STRATEGICALLY LOCATED MANUFACTURING MANAGEMENT TEAM FACILITIES ▪ Over 20 years of experience in this business supported ▪ Our operations in Nagpur, Maharashtra, benefit from a by team of professionals having knowledge of our central location that ensures streamlined logistics, variousbusinessfunctions reduced transit times and efficient service to industries nationwideincluding urbanandremoteareas BUSINESS OVERVIEW Business at a Glance CEMENT POWER STEEL Key Raw Materials include • FERRO ALLOYS, ENGINEERING • POWDERED METALS USED IN like Chromium, Molybdenum, Manganese, Nickel etc, INDUSTRIES • STEEL PLATES, MINING • METAL WIRES • OTHER ALLOYS SUGAR DEFENCE OIL & GAS 1144 Our Services A Closed - L [Showing first 8,000 characters — download PDF for full document]