Analysts/Institutional Investor Meet/Con. Call Updates

November 2, 2026 To, To, The Manager The Manager Listing Department Corporate Relationship Department National Stock Exchange of India Limited BSE Limited Exchange Plaza, Plot No. C/1, G Block Floor 25, Phiroze Jeejeebhoy Towers, Bandra Kurla Complex Dalal Street, Bandra (East), Mumbai - 400 001 Mumbai - 400 051 BSE Scrip Code - 544264 NSE Symbol: DIFFNKG SUB: COMPLIANCE UNDER REGULATION 30 OF THE SEBI (LISTING OBLIGATIONS AND DISCLOSURE REQUIREMENTS) REGULATIONS, 2015. Dear Sir/Madam, In compliance with Regulation 30 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, we wish to inform you that Diffusion Engineers Limited is organizing Earnings Conference Call to discuss 2 FY 2026-27 on Thursday, 5th November, 2026 at 01:00 p.m. the Company’s operational and financial performance for Q https://diffusionengineers.com/investors-relation/ T he invite is also available on the Company’s website Kindly take the same on record. Thanking You, For Diffusion Engineers Limited Chanchal Digitally signed by Chanchal Rajesh Rajesh Jaiswal Jaiswal Date: 2026.11.02 14:51:10 +05'30' Chanchal Jaiswal Company Secretary and Compliance Officer ICSI Membership No.: A67136 Diffusion Engineers Limited Cordially invites you to the Earnings Conference Call To discuss the operational and financial performance for Q2 & H1 FY27 Day/Date: Thursday, 05th November 2026 Time: 01:00 PM Access Numbers +91 22 6280 1102 Universal Dial in +91 22 7115 8003 Hong Kong 800 964 448 Singapore 800 101 2045 UK 0808 101 1573 USA 18667462133 Diamond Pass Link: Click Here Management Representatives: Mr. Prashant Garg (Chairman &Managing Director), Mr. Abhishek Mehta (Chief Financial Officer) and Ms. Chanchal Jaiswal (Company Secretary & Compliance Officer) We look forward to your participation RSVP: Mr.Tejpal Singh Adfactors PR Contact: +91 9351745014