Updates

Date: 20th August, 2026 To, To, National Stock Exchange of India Limited BSE Limited Exchange Plaza, C-1 Block G, 25th Floor, Bandra Kurla Complex Phiroze Jeejeebhoy Towers, Bandra [E], Dalal Street, Fort, Mumbai – 400051 Mumbai - 400 001 NSE Scrip Symbol: KRONOX BSE Scrip Code: 544187 Dear Sir/Madam Sub: DISCLOSURE UNDER REGULATION 30 OF THE SEBI (LISTING OBLIGATIONS AND DISCLOSURE REQUIREMENTS) REGULATIONS 2015, AS AMENDED FROM TIME TO TIME (“SEBI LODR REGULATIONS”). Pursuant to the provisions of Regulations 30 of SEBI LODR Regulations, this is to kindly inform that, Kronox Lab Sciences Limited ("Company") is in receipt of the public announcement dated August 20, 2026, in relation to an open offer to the public shareholders of the Company issued by IIFL Capital Services Limited (formerly known as IIFL Securities Limited), on behalf of Indo Borax & Chemicals Limited (“Acquirer”) along with Zenrock Chemicals Private Limited (promoter of the Acquirer) in its capacity as a person acting in concert with the Acquirer, for the purpose of the Acquirer acquiring equity shares of the Company as per the requirements of the Securities and Exchange Board of India (Substantial Acquisition of Shares and Takeovers) Regulations, 2011. A copy of the public announcement received by the Company is enclosed herewith. You are requested to kindly take note of the same. Thanking you, Yours Faithfully For KRONOX LAB SCIENCES LIMITED Nikhil Goswami Company Secretary ACS 68272 Enc.: As above August 20, 2026 Board of Directors, Kronox Lab Sciences Limited Registered Office: Block No. 353, Village Ekalbara, Padra, Vadodara - 391 440, Gujarat, India Dear Sir/Madam, Sub.: Open offer by Indo Borax and Chemicals Limited ("Acquirer") along with Zenrock Chemicals Private Limited ("PAC") to the public shareholders of Kronox Lab Sciences Limited ("Target Company") for acquisition of equity shares pursuant to Regulations 3(1) and 4 and other applicable provisions of the Securities and Exchange Board of India (Substantial Acquisition of Shares and Takeovers) Regulations, 2011, as amended ("SEBI (SAST) Regulations") ("Offer"). We have been appointed as the Manager to the Offer by the Acquirer and the PAC for the Offer made to the public shareholders of Target Company. The open offer is being made in terms of Regulations 3(1) and 4 and other applicable provisions of the Takeover Regulations. In terms of Regulation 14(2) of the Takeover Regulations, please find enclosed a copy of the public announcement dated August 20, 2026 for the Offer. Thanking you, For IIFL Capital Services Limited (formerly known as IIFL Securities Limited) Name: Yogesh Malpani Designation: Vice President Encl.: As Above IIFL Capital Services Limited (formerly known IIFL Securities Limited) Corporate Identity Number: L99999MH1996PLC132983 | SEBI Merchant Banking Registration Number: INM000010940 24th Floor, One Lodha Place, Senapati Bapat Marg, Lower Parel, Mumbai – 400013. Tel: +91 22 4646 4600 Fax: +91 22 2493 1073 Regd. Office: IIFL House, Sun lnfotech Park, Road No. 16V, Plot No. B-23, MIDC, Thane Industrial Area, Wagle Estate, Thane - 400 604 Tel: (91-22) 3929 4000/ 4103 5000 • Fax: (91-22) 2580 6654• E-mail: info.ib@iiflcap.com; secretarial@iifl.com • Website: www.iiflcap.com; www.iiflcapital.com PUBLIC ANNOUNCEMENT FOR THE ATTENTION OF THE PUBLIC SHAREHOLDERS OF KRONOX LAB SCIENCES LIMITED UNDER REGULATION 3(1) AND REGULATION 4 READ WITH REGULATIONS 13(1), 14 AND 15(1) OF THE SECURITIES AND EXCHANGE BOARD OF INDIA (SUBSTANTIAL ACQUISITION OF SHARES AND TAKEOVERS) REGULATIONS, 2011, AS AMENDED. Open offer for the acquisition of up to 95,70,000 (ninety five lakhs seventy thousand) fully paid-up equity shares of face value of ₹10.00 (Indian Rupees ten only) each (the “Equity Shares”) of Kronox Lab Sciences Limited (the “Target Company”), representing 25.79%* (twenty five point seven nine per cent) of the Voting Share Capital (as defined below), from the Public Shareholders (as defined below) of the Target Company, by Indo Borax and Chemicals Limited (the “Acquirer”) along with Zenrock Chemicals Private Limited (“PAC”) in their capacity as persons acting in concert with the Acquirer for the purposes of this Open Offer (as defined below) pursuant to and in compliance with the requirements of the Securities and Exchange Board of India (Substantial Acquisition of Shares and Takeovers) Regulations, 2011, as amended (the “SEBI (SAST) Regulations”) (the “Open Offer” or “Offer”). *As per Regulation 7(1) of the SEBI (SAST) Regulations, the open offer under Regulation 3 and Regulation 4 is required to be made for at least 26.00% (twenty- six point zero zero per cent) of the total share capital of a target company, as of the 10th working day from the closure of the tendering period of the open offer. However, the shareholding of the Public Shareholders is only 95,70,000 (ninety five lakhs seventy thousand) Equity Shares representing 25.79% (twenty five point seven nine per cent) of the Voting Share Capital as of the 10th working day from the closure of the Tendering Period (as defined below) of the Open Offer, and therefore, the Offer Size (as defined below) represents 25.79% (twenty five point seven nine per cent) of the Voting Share Capital. This public announcement (the “Public Announcement” or “PA”) is being issued by IIFL Capital Services Limited (formerly known as IIFL Securities Limited), the manager to the Open Offer (the “Manager” or Manager to the Offer”), for and on behalf of the Acquirer along with PAC (as the ‘person acting in concert’ with the Acquirer), to the Public Shareholders of the Target Company pursuant to and in compliance with Regulation 3(1) and Regulation 4 read with Regulations 13(1), 14 and 15(1) and other applicable regulations of the SEBI (SAST) Regulations. For the purposes of this Public Announcement, the following terms shall have the meanings assigned to them below: (a) “Closing” means completion of transfer of the Sale Shares from the Sellers to the Acquirer and other identified actions set out in the SPA; (b) “Consultancy Agreement(s)” means the agreement(s) to be executed with each of the Sellers on Closing, pursuant to which the Sellers shall provide transition support consultancy services to the Target Company in accordance with the terms set out therein; (c) “Detailed Public Statement” means the detailed public statement proposed to be issued for the Open Offer in accordance with the SEBI (SAST) Regulations; (d) “Equity Shares” means the fully paid-up equity shares of the Target Company having a face value of ₹ 10.00 (Indian Rupees ten only) per equity share; (e) “Letter of Offer” means the letter of offer proposed to be issued for the Open Offer in accordance with the SEBI (SAST) Regulations; (f) “Public Shareholders” means all the equity shareholders of the Target Company who are eligible to tender their Equity Shares in the Offer, except: (i) the promoters and members of the promoter group of the Target Company; (ii) the Acquirer and PAC; (iii) the parties to the underlying Share Purchase Agreement (as defined below); and (iv) any persons deemed to be acting in concert with the parties to the Share Purchase Agreement, pursuant to and in compliance with the SEBI (SAST) Regulations; (g) “Sale Shares” means the 2,38,44,000 (two crore thirty eight lakh forty four thousand) Equity Shares held by Sellers equivalent up to 64.26% (sixty four point two six per cent) of the total paid up equity share capital of the Target Company on a fully diluted basis; (h) “SCRR” means the Securities Contract (Regulations) Rules, 1957, as amended; (i) “SEBI” means the Securities and Exchange Board of India; (j) “Sellers” means (i) Ketan Vinodchandra Ramani (“Seller 1”), (ii) Pritesh Vinodchandra Ramani (“Seller 2”), and (iii) Jogindersingh Gianchand Jaswal (“Seller 3”), collectively; (k) “SEBI (LODR) Regulations” means the Securities and Exchange Board of India (Listing Obligations and Disclosure Req [Showing first 8,000 characters — download PDF for full document]