Pre- Intimation of Investor/ Analyst meet scheduled on 19th August, 2026

Date: 13th August, 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 SUB: Regulation 30(6) of SEBI (LODR) Regulations, 2015 – Pre- Intimation of Investor/ Analyst meet Dear Sir/ Madam, Pursuant to Regulation 30(6) of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 (“the Listing Regulations”) read with Part A of Schedule III of the Listing Regulations, we wish to inform that the management of the Company will have a virtual meeting with investors/Analyst on 19th August 2026 at 07:00 PM; details of the same are given below: Sr. no. Name Meeting Seven Canyon Advisors 1 Virtual Note: The schedule of the aforesaid meetings is subject to change. The changes may happen due to exigencies on the part of Fund / Broking House / Company. The Discussion with the investor(s)/Analysts are based on generally available information and not related to any Unpublished Price Sensitive Information as per Diffusion Engineers Limited- Code of Practices and Procedures for Fair Disclosure of Unpublished Price Sensitive Information. Kindly take the same on record. Thanking you, For Diffusion Engineers Limited Chanchal Jaiswal Company Secretary and Compliance Officer Membership no. A67136 For more details please visit: https://diffusionengineers.com/