Intimation for Credit Rating under Regulation 30 of SEBI (LODR) Regulations, 2015

Date: July 21, 2026 The Listing Department, BSE Limited Phiroze Jeejeebhoy Towers, Dalal Street, Mumbai – 400001 Scrip Code: 539984 Subject: Intimation under Regulation 30 read with PART-A of Schedule III of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015- Intimation regarding Credit Rating Dear Sir/Ma’am, Pursuant to regulation 30 read with PART-A of schedule III of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, we wish to inform you that Care Ratings Limited have assigned the following Credit Ratings. Rating Agency Facilities Rating Rating Action Care Ratings Long Term Bank CARE BBB; Stable Assigned Limited Facilities Care Ratings Long Term/ Short CARE BBB; Stable/CARE A3+ Assigned Limited Term Bank Facilities This is for your information and records. The same is also available on the Company’s website at https://hindusthaninsulators.com/ Please find enclosed herewith the rating letter received from Care Ratings Limited. Thanking You, Yours faithfully For Hindusthan Insulators & Industries Limited (Neha Kejriwal) Company Secretary & Compliance Officer M.No. F12381 CareEdge RATINGS No. CARE/ARO/RL/2026-27/3407 Shri Shailendra Jhalani Chief Financial Officer Hindusthan Insulators & Industries Limited New Industrial Area, 1-8 MANDIDEEP, MANDIDEEP Raisen Madhya Pradesh 462046 July 21, 2026 Confidential Dear Sir, Credit rating for bank facilities Please refer to your request for rating the bank facilities of your Company 2. The following ratings have been assigned by our Rating Committee: Amount Facilities Rating1 Rating Action (:f crore) Long Term Bank 1.00 CARE BBB; Stable Assigned Facilities Long Term / Short CARE BBB; Stable / CARE 14.00 Assigned Term Bank Facilities A3+ 3. Refer Annexure 1 for details of rated facilities. 4. The above rating is normally valid for a period of one year from the date of our initial communication of rating to you (that is July 21, 2026). 5. The rating report for the rating will be communicated to you separately. A write-up (press release) on the above rating is proposed to be issued to the press shortly, a draft of which is enclosed for your perusal as Annexure 2. We request you to peruse the annexed document and offer your comments if any. We are doing this as a matter of courtesy to our clients and with a view to ensure that no factual inaccuracies have inadvertently crept in. Kindly revert as early as possible. In any case, if we do not hear from you by July 22, 2026, we will proceed on the basis that you have no any comments to offer. 1Complete definitions of the ratings assigned are available at www.careratings.com and in other CARE Ratings Ltd.'s publications. CARE Ratings Limited 32, Titanium, Prahladnagar Corporate Road, Corporate Office :4th Floor, Godrej Coliseum, Satellite, Ahmedabad -380015 Somaiya Hospital Road, Off Eastern Express Phone: +91-79-4026 5656 Highway, Sion (E), Mumbai -400 022 Phone: +91-22-6754 3456 • www.careedge.in CIN-L67190MH1993PLC071691 Page 1 of 4 6. CARE Ratings Ltd. reserves the right to undertake a surveillance/review of the rating from time to time, based on circumstances warranting such review, subject to at least one such review/surveillance every year. 7. CARE Ratings Ltd. reserves the right to revise/reaffirm/withdraw the rating assigned as also revise the outlook, as a result of periodic review/surveillance, based on any event or information which in the opinion of CARE Ratings Ltd. warrants such an action. In the event of failure on the part of the entity to furnish such information, material or clarifications as may be required by CARE Ratings Ltd. so as to enable it to carry out continuous monitoring of the rating of the bank facilities, CARE Ratings Ltd. shall carry out the review on the basis of best available information throughout the life time of such bank facilities. In such cases the credit rating symbol shall be accompanied by "ISSUER NOT COOPERATING". CARE Ratings Ltd. shall also be entitled to publicize/disseminate all the afore-mentioned rating actions in any manner considered appropriate by it, without reference to you. 8. Our ratings do not take into account the sovereign risk, if any, attached to the foreign currency loans, and the ratings are applicable only to the rupee equivalent of these loans. 9. Our ratings do not factor in any rating related trigger clauses as per the terms of the facility/instrument, which may involve acceleration of payments in case of rating downgrades. However, if any such clauses are introduced and if triggered, the ratings may see volatility and sharp downgrades. 10. Users of this rating may kindly refer our website www.careratings.com for latest update on the outstanding rating. 11. CARE Ratings Ltd. ratings are not recommendations to sanction, renew, disburse or recall any bank facilities. 12. If you need any clarification, you are welcome to approach us in this regard. We are indeed, grateful to you for entrusting this assignment to CARE Ratings Ltd .. Thanking you, Yours faithfully, Arpita Alax Christian Nikita Akhilesh Goyal Assistant Director Associate Director arpita.christian@careedge.in nikita.goyal@careedge.in CARE Ratings Limited 32, Titanium, Prahladnagar Corporate Road, Corporate Office :4th Floor, Godrej Coliseum, Satellite, Ahmedabad -380015 Somaiya Hospital Road, Off Eastern Express Phone: +91-79-4026 5656 Highway, Sion (E), Mumbai -400 022 Phone: +91-22-6754 3456 • www.careedge.in CIN-L67190MH1993PLC071691 Page 2 of 4 Encl.: As above Disclaimer This disclaimer pertains to the ratings issued and content published by CARE Ratings Limited ("CareEdge Ratings''). Ratings are opinions on the likelihood of timely payment of the obligations under the rated instrument and are not recommendations to sanction, renew, disburse, or recall the concerned bank facilities or to buy, sell, or hold any security. Any opinions expressed herein are in good faith and are subject to change without notice. The rating reflects the opinions as on the date of the rating. A rating does not convey suitability or price for the investor. The rating agency does not conduct an audit on the rated entity or an independent verification of any information it receives and/or relies on for the rating exercise. CareEdge Ratings has based its ratings/outlook on the information obtained from reliable and credible sources. CareEdge Ratings does not, however, guarantee the accuracy, adequacy, or completeness of any information and is not responsible for any errors or omissions and the results obtained from the use of such information. The users of the rating should rely on their own judgment and may take professional advice while using the rating in any way. CareEdge Ratings shall not be liable for any losses that user may incur or any financial liability whatsoever to the user of the rating. The use or access of the rating does not create a client relationship between CareEdge Ratings and the user. CAREEDGE RATINGS DISCLAIMS WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHER WARRANTIES OR CONDmONS, TO THE EXTENT PERMITTED BY APPLICABLE LAWS, INCLUDING WARRANTIES OF MERCHANTABILITY, ACCURACY, COMPLETENESS, ERROR-FREE, NON INFRINGEMENT, NON-INTERRUPTION, SATISFACTORY QUALITY, FITNESS FOR A PARTICULAR PURPOSE OR INTENDED USAGE. Most entities whose bank facilities/instruments are rated by CareEdge Ratings have paid a credit rating fee, based on the amount and type of bank facilities/instruments. CareEdge Ratings or its subsidiaries/associates may also be involved with other commercial transactions with the entity. CareEdge Ratings does not act as a fiduciary by providing the rating. The ratings are intended for use only within the jurisdiction of India. The ratings of CareEdge Ratings do not factor in any rating-related trigger clauses as per the terms of the facilities/instruments, which may involve acceleration of payments in case of rating downgrades. However, if any such clauses are introduced an [Showing first 8,000 characters — download PDF for full document]