Diffusion Engineers Limited — Regulatory Filings 2025

Dec 4, 2025

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Date: 4[th] December 2025

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 Plant Visit

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 would like to inform you that the officials of the Company will be organizing Plant visit for Investors and Analysts (Participants). Details are as follows:

Sr. no.	Plant	Date
1	Plant 1,2 and 3,Nagpur	9thDecember 2025

Note: Any unforeseen exigency on the part of Company / Investors / Analysts may lead to change in date /time and no UPSI will be shared during the said visit.

Kindly take the same on record.

Thanking you,

For Diffusion Engineers Limited

Chanchal Digitally signed by Chanchal Rajesh Rajesh Jaiswal Jaiswal Date: 2025.12.04 16:11:49 +05'30' Chanchal Jaiswal Company Secretary and Compliance Officer Membership no. A67136

For more details please visit: www.diffusionengineers.com

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