Enclosed is the BRSR FY26.

17.08.2026 BSE Limited National Stock Exchange of India Limited Phiroze JeeJeebhoy Towers, Exchange Plaza, Plot no. C/1, Dalal Street,Fort, G Block, Bandra-Kurla Complex Mumbai – 400 001 Bandra (E), Mumbai - 400 051 Scrip Code: 543318 Trading Symbol: CLEAN Subject: Business Responsibility and Sustainability Report for FY 2025-26 Dear Sir/Madam Pursuant to Regulation 34(2)(f) of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, we are submitting herewith the Business Responsibility and Sustainability Report for FY 2025-26, which also forms part of the Annual Report for FY 2025-26 and the same is available on the website of the Company at https://cleanscience.co.in/wp-content/uploads/2026/08/CSTL-AR-2025-26_final.pdf Kindly take the same on your records. Thanking You. For Clean Science and Technology Limited Ruchita Vij Company Secretary and Compliance Officer Corporate Overview Statutory Reports Financial Statements BUSINESS RESPONSIBILITY AND SUSTAINABILITY REPORT [BRSR] Clean Science and Technology Limited SECTION A: GENERAL DISCLOSURE I. Details of the Listed Entity 1 Corporate Identity Number (CIN) of the Listed Entity L24114PN2003PLC018532 2 Name of the Listed Entity Clean Science and Technology Limited (“CSTL”) 3 Year of incorporation 7th November, 2003 4 Registered office address Office No. 603 & 604, 6th floor, Tower No. 15, Cybercity, Magarpatta City, Hadapsar, Pune – 411013 5 Corporate address Office No. 603 & 604, 6th floor, Tower No. 15, Cybercity, Magarpatta City, Hadapsar, Pune – 411013 6 E-mail compliance@cleanscience.co.in 7 Telephone +91 020 41264761 8 Website https://www.cleanscience.co.in 9 Financial year for which reporting is being done 2025-26 10 Name of the Stock Exchange(s) where shares are listed Bombay Stock Exchange (BSE) & National Stock Exchange of India Limited 11 Paid-up Capital ` 10,62,77,299 12 Name and contact details (telephone, email address) of the person who may be contacted in case of any queries on the BRSR report Name of the Person Mr. Siddhartha Sikchi, Managing Director Telephone +91 020 41264761 Email address compliance@cleanscience.co.in 13 Reporting Boundary Type of Reporting (Standalone/Consolidated Basis) Standalone-Basis Reporting 14 Name of assurance provider Not applicable for 2025-26 15 Type of assurance provider Not applicable for 2025-26 II. Product/Services 16 Details of business S.No. Description of Main Description of Business % Turnover of the activities Activity Activity Entity 1. Manufacture of Organic Chemical and chemical 100% and Inorganic Chemicals products, pharmaceuticals, medicinal chemical and botanical products 17 Products/Services S.No. Product/Service NIC Code % of Total Turnover sold by the entity contributed 1. Performance Chemicals 20299 72% 2. Pharma and Agro 20299 19% Intermediates 3. FMCG Chemicals 20299 9% III. Operations 18 Number of locations where plants and/ Location Number of No. of Offices Total or operations/offices of the entity are plants situated: National 3 1 4 International 0 0 0 Clean Science Technology Limited BUSINESS RESPONSIBILITY AND SUSTAINABILITY REPORT [BRSR] (CONTD.) 19 Market served by the entity Locations Numbers a. No. of Locations National (No. of States) 18 International (No. of Countries) 38 b. What is the contribution of exports as a percentage of the total 67% turnover of the entity? c. A brief on types of customers The Company is involved in B2B-business and provides a product portfolio diversified into three major segments: Performance Chemicals, Pharma & Agro Intermediates, and FMCG Chemicals. The Company’s products find applications in various critical end-user industries and everyday product verticals, including precursors for agricultural chemicals, antioxidants for food and infant food formulations, precursors to manufacture APIs for cough syrup, polymers and monomers, the cosmetic industry, perfumes, and many other applications. Majority of the customers are reputed MNCs with long term relationship. IV. Employees 20. Details as at the end of Financial Year: S.No. Particulars Total (A) Male Female No. (B) % (B/A) No. (C) % (C/A) a. Employees and workers (including differently abled) Employees 1 Permanent Employees (A) 395 353 89.37% 42 10.63% 2 Other than Permanent Employees (B) 2 2 100% 0 0% 3 Total Employees (A+B) 397 355 89.42% 42 10.58% Workers 4 Permanent Workers (C) 1 1 100% 0 0% 5 Other than Permanent Workers (D) 744 695 93.41% 49 6.59% 6 Total Workers (C+D) 745 696 93.42% 49 6.58% b. Differently abled employees and workers Differently abled Employees 1 Permanent Employees (E) 0 0 0% 0 0% 2 Other than Permanent Employees (F) 0 0 0% 0 0% 3 Total Differently Abled Employees (E+F) 0 0 0% 0 0% Differently abled Workers 4 Permanent Workers (G) 0 0 0% 0 0% 5 Other than Permanent Workers (H) 0 0 0% 0 0% 6 Total Differently Abled Workers (G+H) 0 0 0% 0 0% 21. Participation/Inclusion/Representation of women No. and % of females S.No. Category Total (A) No. (B) % (B/A) 1 Board of Directors 8 1 12.50% 2 Key Management Personnel 2 1 50% 62-5202 tropeR launnA Corporate Overview Statutory Reports Financial Statements BUSINESS RESPONSIBILITY AND SUSTAINABILITY REPORT [BRSR] (CONTD.) 22. Turnover rate for permanent employees and workers (Disclose trends for the past 3 years) Category 2025-26 2024-25 2023-24 (Turnover rate in current FY) (Turnover rate in previous FY) (Turnover rate in the year prior to previous FY) Male Female Total Male Female Total Male Female Total Permanent Employees 32% 16% 31% 31% 22% 30% 42% 28% 41% Permanent Workers 0% 0% 0% 0% 0% 0% 67% 0 0 V. Holding, Subsidiary and Associate Companies (including joint ventures) 23. Names of holding/ S. Name of the holding/ Indicate whether % Of shares Does the entity indicated subsidiary/ No subsidiary/associate it is a holding/ held by listed at column A, participate associate companies/joint Subsidiary/ entity in the Business companies/joint ventures Associate/or Responsibility initiatives ventures Joint Venture of the listed entity? (Yes/ 1 Clean Science Private Wholly Owned 100% No Limited Subsidiary 2 Clean Organics Private Wholly Owned 100% No Limited Subsidiary 3 Clean Aromatics Private Wholly Owned 100% No Limited Subsidiary 4 Clean Fino-Chem Limited Wholly Owned 100% No Subsidiary VI. CSR Details 24 Whether CSR is applicable as per section 135 of Companies Act, 2013: Yes Turnover (in ` million) 8,153.35 Net worth (in ` million) 16,456 VII. Transparency and Disclosures Compliances 25 Complaints/ Stakeholder Grievance If yes, then 2025-26 2024-25 Grievances group from Redressal provide web-link Current Financial Year Previous Financial Year on any of the whom Mechanism for grievance Number of Number of Remarks Number of Number of Remarks principles complaint is in Place redress policy complaints complaints complaints complaints (Principles 1 received (Yes/No) filed during pending filed during pending to 9) under the year resolution the year resolution the National at close of at close of Guidelines on the year the year Responsible Business Communities Yes https://www. 0 0 Nil 0 0 Nil Conduct Shareholder Yes cleanscience. 1 0 All resolved 2 0 All resolved co.in/company- policies Employees and Yes 0 0 Nil 0 0 Nil workers Investor Yes 0 0 Nil 0 0 Nil (Other than shareholders) Customers Yes 4 0 All resolved 15 0 All resolved Value Chain Yes 0 0 Nil 0 0 Nil Partners Clean Science Technology Limited BUSINESS RESPONSIBILITY AND SUSTAINABILITY REPORT [BRSR] (CONTD.) 26 Overview of the entity’s material responsible business conduct issues Material Indicate Rationale for identifying the risk/opportunity In case of risk, approach to adapt or mitigate Financial Issues whether implications risk or of the risk or opportunity opportunity (R/O) (Indicate positive or negative implications) Air Emissions R SOx, NOx, SPM, and particulate matter CSTL continues to invest in state-of-the-art Negative and Quality emissions from DG sets and boilers have devices and upgrade [Showing first 8,000 characters — download PDF for full document]