Disclosure under Regulation 30 of SEBI (LODR) Regulations, 2015

September 23, 2026 BSE Limited National Stock Exchange of India Limited Phiroze Jeejeebhoy Towers, Exchange Plaza, C-1, Block - G, Dalal Street, Bandra Kurla Complex, Mumbai - 400 001 Bandra (East), Mumbai - 400 051 Scrip Code: 543212 Symbol: BOROLTD Dear Sirs, Sub: Intimation under Regulation 30 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 We refer to our earlier intimation dated July 01, 2026, wherein it was, inter alia, informed that commercial production from the third double-wall line at the manufacturing unit set up through the Company’s Wholly Owned Subsidiary, Stylenest India Limited, was expected to commence during Q2 FY 2026-27. We wish to inform you that the work on the third double-wall line is currently in progress, and the commencement of commercial production from the said line is now expected by January 2027. The revised timeline is primarily attributable to certain logistical and supply- chain constraints in the receipt of imported equipment from China, coupled with the scheduling and availability of the supplier’s technical personnel for installation and commissioning. The Company is closely coordinating with the supplier to expedite the balance activities relating to installation and commissioning and is taking necessary steps to ensure completion of the pending activities in line with the revised timeline. This is for your information and record, please. This intimation is also being uploaded on the Company's website at www.borosil.com. Thank you. Yours faithfully, For Borosil Limited Pradeep Joshi Company Secretary & Compliance Officer FCS – 4959