Updates

Date: September 29, 2026 BSE Limited Na(cid:415)onal Stock Exchange of India Limited The Corporate Rela(cid:415)ons Department, Exchange Plaza, 25th Floor, Phiroze Jeejeebhoy Towers, Bandra-Kurla Complex, Bandra (East), Dalal Street,Mumbai - 400 001 Mumbai 400 051 Stock Code – 544187 Stock Code – KRONOX Subject: In(cid:415)ma(cid:415)on under Regula(cid:415)on 31A(10) and other applicable provisions of SEBI (Lis(cid:415)ng Obliga(cid:415)ons and Disclosure Requirements) Regula(cid:415)ons, 2015 (“Lis(cid:415)ng Regula(cid:415)ons”) Ref: 1. Disclosure under Regula(cid:415)on 30 and Regula(cid:415)on 30A of the Lis(cid:415)ng Regula(cid:415)ons dated August 20, 2026 regarding the execu(cid:415)on of the Share Purchase Agreement and the disclosure under Regula(cid:415)on 30 and Regula(cid:415)on 30A of the Lis(cid:415)ng Regula(cid:415)ons dated September 29, 2026 in(cid:415)ma(cid:415)ng the outcome of the mee(cid:415)ng of the board of directors of Kronox Lab Sciences Limited (the “Company”); 2. Disclosure under Regula(cid:415)on 30 of the Lis(cid:415)ng Regula(cid:415)ons dated August 20, 2026 regarding the Public Announcement of the Open Offer; 3. Disclosure under Regula(cid:415)on 30 of the Lis(cid:415)ng Regula(cid:415)ons dated August 28, 2026 regarding the Detailed Public Statement pertaining to the Open Offer; and 4. Disclosure under Regula(cid:415)on 30 of the Lis(cid:415)ng Regula(cid:415)ons dated September 05, 2026 regarding the Dra(cid:332) Le(cid:425)er of Offer pertaining to the Open Offer. Dear Sir/ Madam, 1. We refer to our earlier in(cid:415)ma(cid:415)ons as referred above including our in(cid:415)ma(cid:415)on regarding the Share Purchase Agreement (“SPA”) dated August 20, 2026 executed by Mr. Ketan Vinodchandra Ramani, Mr. Pritesh Vinodchandra Ramani, Mr. Jogindersingh Gianchand Jaswal (collec(cid:415)vely, the “Sellers”) with Indo Borax & Chemicals Limited (“Acquirer”) and Zenrock Chemicals Private Limited, our in(cid:415)ma(cid:415)on dated August 20, 2026 regarding the public announcement of the open offer made by the Acquirer (along with persons ac(cid:415)ng in concert) and our in(cid:415)ma(cid:415)on dated September 29, 2026 pertaining to the outcome of the mee(cid:415)ng of the board of directors of the Company regarding the comple(cid:415)on of the transfer of 2,38,44,000 (two crore thirty eight lakh forty four thousand) equity shares (“Equity Shares”), represen(cid:415)ng 64.26% (sixty four point two six per cent) of the total paid up equity share capital of the Company from the Sellers to the Purchaser on September 29, 2026 (i.e., today) (“Share Transfer”) along with requisite considera(cid:415)on. 2. Pursuant to the Share Transfer, and in accordance with paragraph 2.1 of the public announcement dated August 20, 2026, paragraph II(3) of the detailed public statement dated August 27, 2026, and paragraph III(A) of the dra(cid:332) le(cid:425)er of offer dated September 04, 2026, the Acquirer has acquired control of the Company and has become the promoter of the Company in accordance with the Lis(cid:415)ng Regula(cid:415)ons. Upon consumma(cid:415)on of the Share Transfer, the Sellers collec(cid:415)vely hold 36,90,000 (thirty six lakhs ninety thousand) Equity Shares aggrega(cid:415)ng to 9.95% (nine point nine five per cent) of the total paid up equity share capital of the Company and each of the Sellers along with other members of promoter group are intending to cease to be members of the promoter/ promoter group (collec(cid:415)vely, the “Erstwhile Promoter/ Promoter Group”) in accordance with Regula(cid:415)on 31A(l0) of the Lis(cid:415)ng Regula(cid:415)ons. In light of the foregoing, and the comple(cid:415)on of the acquisi(cid:415)on by the Acquirer, the inten(cid:415)on of: (i) the Acquirer to exercise sole control over the Company; and (ii) the Erstwhile Promoter/ Promoter Group to cease themselves as part of promoter/ promoter group and re-classify as public; is completed subject to there being no objec(cid:415)ons, adverse observa(cid:415)ons, direc(cid:415)ons, requirements or other concerns raised by any regulatory, governmental or other competent authority in connec(cid:415)on with or pursuant to this in(cid:415)ma(cid:415)on. 3. Subject to the above, in accordance with Regula(cid:415)on 31A(3)(b) of the Lis(cid:415)ng Regula(cid:415)ons, the Erstwhile Promoter/ Promoter Group and persons related to the Erstwhile Promoter/ Promoter Group (in terms of Regula(cid:415)on 31A(l)(b) of the Lis(cid:415)ng Regula(cid:415)ons): (a) do not, together, hold more than 10% (ten per cent) of the total vo(cid:415)ng rights of the Company; (b) do not exercise control over the affairs of the Company directly or indirectly; (c) do not have any special rights with respect to the Company through formal or informal arrangements including through any shareholder agreements; (d) are not represented on the board of directors (including not having a nominee director) of the Company; (e) do not act as key managerial personnel of the Company; (f) are not ‘wilful defaulters’ as per the Reserve Bank of India Guidelines; and (g) are not fugi(cid:415)ve economic offenders. 4. The Company is compliant with Regula(cid:415)on 31A(3)(c) of the Lis(cid:415)ng Regula(cid:415)ons. 5. The Acquirer, along with Zenrock Chemicals Private Limited, in its capacity as persons ac(cid:415)ng in concert with the Acquirer, is undertaking an open offer to acquire up to 95,70,000 (ninety five lakhs seventy thousand) Equity Shares of the Company, represen(cid:415)ng 25.79% (twenty five point seven nine per cent) of the vo(cid:415)ng share capital of the Company, from the public shareholders of the Company (the “Open Offer”) pursuant to and in compliance with the requirements of the Securi(cid:415)es and Exchange Board of India (Substan(cid:415)al Acquisi(cid:415)on of Shares and Takeovers) Regula(cid:415)ons, 2011, as amended. 6. The above disclosure is made in accordance with the disclosures men(cid:415)oned in the public announcement dated August 20, 2026 (in paragraph 2.2), detailed public statement dated August 27, 2026 (in paragraph II(5)) and dra(cid:332) le(cid:425)er of offer dated September 04, 2026 (in paragraphs III(A)(4), III(A)(8)), each made in connec(cid:415)on with the Open Offer. We request you to take this informa(cid:415)on on record. Thanking you, Yours faithfully, For Kronox Lab Sciences Limited Nikhil Goswami Company Secretary & Compliance Officer Membership No. A68272