Disclosure under Regulation 30 of SEBI LODR Regulations, 2015

November 6, 2026 The National Stock Exchange of India Ltd., BSE Limited, Exchange Plaza, Bandra-Kurla Complex, Corporate Relationship Department, Bandra (East), Mumbai – 400 051. P. J. Towers, Dalal Street, Fort, Mumbai – 400 023. Code : PRSMJOHNSN Code : 500338 Dear Sir, Sub: Disclosure under Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 Pursuant to Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 (‘SEBI LODR’) and based on the recommendation of the Nomination and Remuneration Committee, the Board of Directors of the Company, at its meeting held today, i.e. November 6, 2026 has, designated Mr. Vishal Tandon, Senior Vice President- Operations, QC and E&D and Head Business Development and Business Excellence West Zone I & II, as a Senior Management Personnel within the meaning of SEBI LODR, effective from November 6, 2026. Details required under Regulation 30 of the SEBI LODR read with SEBI Master Circular HO/49/14/14(7)2025-CFD-POD2/I/3762/2026 dated January 30, 2026 are provided in the enclosed Annexure. The meeting of the Board of Directors of the Company commenced at 10.45 a.m. and concluded at 12.50 p.m. Please take the above information on record. Thanking you, Yours faithfully, For PRISM JOHNSON LIMITED SHAILESH DHOLAKIA Company Secretary & Compliance Officer Encl.: As above ANNEXURE Details required under Regulation 30 of the SEBI LODR read with SEBI Master Circular HO/49/14/14(7)2025-CFD-POD2/I/3762/2026 dated January 30, 2026 are as follows: Sr. Disclosure Requirements Description Mr. Vishal Tandon 1 Reason for change viz. Designated Mr. Vishal Tandon, Senior Vice President- appointment, re-appointment, Operations, QC and E&D and Head Business Development and Business Excellence West Zone I & II, resignation, removal, death or as a Senior Management Personnel within the meaning of otherwise; SEBI LODR. 2 Date of appointment/re- With effect from November 6, 2026. appointment/cessation (as applicable) & term of appointment/re-appointment 3 Brief profile (in case of Mr. Vishal Tandon holds a Master’s degree in appointment) Construction Management and brings with him over 30 years of extensive industry experience. He has been associated with reputed organizations such as Larsen & Toubro Limited, Lafarge Holcim, RDC Concrete, CHRYSO, and most recently served as All India Business Development Head at Adani Cement. Mr. Vishal Tandon heads and look after PAN India Operation, Logistics, E&D and QC Functions and Lead Business Development & Business Excellence for West Zone I & II for Prism RMC. 4 Disclosure of relationships Not applicable between directors (in case of appointment of a director).