please find enclosed the Annual report for the FY 2025-26

August 04, 2026 The Manager The Manager BSE Limited National Stock Exchange of India Limited Department of Corporate Services Exchange Plaza, Bandra Kurla Complex, Floor 25, P.J. Towers, Dalal Street Bandra (E), Mumbai – 400001 Mumbai - 400051 Scrip Code : 544278 Scrip Code : OCCLLTD Dear Sirs / Madam, Sub: Annual Report of the Company for the year ended March 31, 2026 Pursuant to Regulations 30 and 34 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 and further to our earlier letter regarding, inter alia, convening of the 4th Annual General Meeting ("AGM'') of the Company to be held on Thursday, August 27, 2026 through Video Conferencing ("VC") / Other Audio Visual Means ("OAVM") facility, please find enclosed herewith the Notice of the AGM and the Annual Report of the Company for the financial year ended March 31, 2026, has been sent by email to those Members whose email addresses are registered with the Company / Company's Registrar and Share Transfer Agent ("RTA") / Depository Participant(s) ("Depository") on August 04, 2026. The requirements of sending physical copy of the Notice of the AGM and the Annual Report to the Members of the Company have been dispensed with vide MCA Circulars and SEBI Circulars. The Notice of the AGM and the Annual Report are also uploaded on the website of the Company at https://www.occlindia.com/investor-relation/annual-reports/ . Members of the Company holding shares in physical form who have not registered their email addresses with the Company can obtain the Notice of the AGM, Annual Report and/or login details for joining the AGM through VC/OAVM facility including e-voting, by sending scanned copy of the signed request letter mentioning Name, Folio Number and Complete Address, self-attested scanned copy of the PAN Card and self-attested scanned copy of any document (such as Aadhar Card, Driving License, Voter Identity Card, Passport) in support of the address of the Members registered with Company by email to the Company’s RTA’s email id, viz. kolkata@in.mpms.mufg.com or Company’s email id, viz. investorfeedback@occlindia.com . Members holding shares in demat form can update their email address with their Depository Participant. In terms of Section 108 of the Companies Act, 2013 and Rule 20 of the Companies (Management & Administration) Rules, 2014 (as amended), the Company has fixed August 20, 2026, as the cut-off date to determine the eligibility of the members to cast their vote by remote e-voting and e-voting during the AGM scheduled to be held on Thursday, August 27, 2026, through VC/OAVM Facility. Registered Office: Plants: Survey No. 141, Plot No. 3 & 4 Dharuhera Industrial Estate, Phase – 1 Paiki of Mouje, APSEZL, Dharuhera – 123106, Distt. Rewari, (Haryana) Mundra, Kachchh, Gujarat, India, 370421 SEZ Division: Survey No. 141, Paiki of Mouje Villag, Mundra, Taluka CIN: L24302GJ2022PLC131360 Mundra, Mundra SEZ, District Kutch, Gujarat, 370421 The remote e-voting period begins on August 24, 2026, at 09:00 A.M (IST) and ends on August 26, 2026, at 5:00 P.M. (IST). The above is for your information and record. Yours Sincerely, For OCCL Limited Pranab Kumar Maity Company Secretary & Sr. GM- Legal Encl. as above Registered Office: Plants: Survey No. 141, Plot No. 3 & 4 Dharuhera Industrial Estate, Phase – 1 Paiki of Mouje, APSEZL, Dharuhera – 123106, Distt. Rewari, (Haryana) Mundra, Kachchh, Gujarat, India, 370421 SEZ Division: Survey No. 141, Paiki of Mouje Villag, Mundra, Taluka CIN: L24302GJ2022PLC131360 Mundra, Mundra SEZ, District Kutch, Gujarat, 370421 Resilient, OCCL LIMITED poised for growth Integrated Annual report 2025-26 Company Overview Statutory Reports Financial Statements Contents Corporate overview 2 Corporate snapshot 5 How we have performed across the years 6 Chairman statement 8 Operational review 10 Our integrated value creation model The year FY 26 was 12 Financial review marked by increased raw 15 Manufactured capital material Sulphur costs, 16 Intellectual capital compressing insoluble 17 Human capital sulphur margins. 28 Environmental stewardship 37 Management discussion and analysis Statutory section 45 AGM notice 57 Directors’ report Insoluble sulphur OCCL reported an 74 Report on Corporate Governance 5 realisations in India EBITDA margin of 18% remained under pressure Financial section in FY 2025–26 (18% in as Chinese manufacturers 93 Independent Auditor’s Report FY 2024-25), reflecting absorbed the imported 102 Balance Sheet resilience. anti-dumping duties. 103 Statement of Profit & Loss 104 Statement of Cash Flow messages of this Annual Report Forward-looking statement In this Annual Report, we have disclosed forward looking information to enable investors to comprehend our prospects and take informed investment decisions. This report and other statements - written and oral - that we periodically make, OCCL ensured contain forward-looking statements that set out anticipated OCCL’s sulphuric acid uninterrupted insoluble results based on the management’s plans and assumptions. business delivered a sulphur supplies to We have tried wherever possible to identify such statements by strong performance, customers by securing using words such as ‘anticipates’, ‘estimates’, ‘expects’, ‘projects’, supporting overall ‘intends’, ‘plans’, ‘believes’ and words of similar substance in adequate raw material to profitability. connection with any discussion of future performance. We cover the shortage. cannot guarantee that these forward-looking statements will be realised, although we believe we have been prudent in our assumptions. The achievement of results is subject to risks, uncertainties and even inaccurate assumptions. Should known or unknown risks or uncertainties materialise, or should underlying assumptions prove inaccurate, actual results could vary materially from those anticipated, estimated or projected. Readers should bear this in mind. We undertake no obligation to publicly update any forward-looking statements, whether as Online Annual report a result of new information, future events or otherwise. www.occlindia.com Company Overview Statutory Reports Financial Statements Corporate Snapshot OCCL Limited Our journey Manufacturing facilities Global footprint Our brand operates in the The Company’s journey began in 1978 OCCL operates advanced manufacturing Headquartered in the National Capital OCCL’s premium insoluble sulphur brand with the incorporation of Dharuhera facilities at Dharuhera in Haryana Region, OCCL has built a strong presence Diamond Sulf is widely recognised for Chemicals Limited, initially focused on and Mundra in Gujarat, designed to across the international markets. The its quality, reliability and consistency. specialised global sulphuric acid production. Over time, it deliver scale, operational efficiency and Company’s products are marketed in The brand reflects the Company’s expanded its capabilities by venturing consistent product quality. As of 31 22 countries, supported by a network commitment to stringent quality insoluble sulphur into the manufacture of insoluble March 2026, the Company possessed of agents and strategically located standards and dependable supply. sulphur in 1994. Sustained investments a production capacity of 39,500 MTPA warehouses that enable efficient Through Diamond Sulf, OCCL contributes in technology, capacity expansion and of insoluble sulphur and 290 MTPD of global distribution. This expanding to the production of high-performance segment within the product development strengthened sulphuric acid and oleum. Continuous footprint reflects the Company’s tyres used across global mobility its position in the global tyre chemicals investments in process technology and growing relevance within the global tyre platforms. specialty chemicals ecosystem. Today, OCCL Limited serves plant infrastructure support operational chemicals ecosystem. as the dedicated platform for the Group’s reliability and long-term g [Showing first 8,000 characters — download PDF for full document]