Credit Rating Intimation to Stock Exchange (5-Sep-2023) Book Closure & Cut-off Date (19-Aug-2023) Authorised Signatories - Regulation 30(5) - SEBI (9-Aug-2023) Board Meeting Outcome (9-Aug-2023) Closure of Trading Window (30-Jun-2023) Clarification Reply BSE (27-Jun-2023) Clarification Reply NSE (26-Jun-2023) Disclosure under Regulation 30 (18-May-2023) Board Meeting Outcome (17-May-2023) Credit Rating Intimation to Stock Exchange (19-Apr-2023)

Closure of Trading Window (31-Mar-2023) Press Release - FY 2022-23 Q3 Results MD & CEO Re-Appointment CFO Resignation Board Meeting Outcome (10-Feb-2023) Closure of Trading Window (29-Dec-2022) Credit Rating Intimation to Stock Exchange (21-Dec-2022) Wholly Owned Subsidiary (Change of Name) Board Meeting Outcome (7-Nov-2022) Closure of Trading Window (28-Sep-2022) Intimation to BSE (Annual Report - FY 2021-22) Intimation to BSE (101st AGM Notice) Book Closure & Cut-off Date (16-Aug-2022) Board Meeting Outcome (12-Aug-2022) Credit Rating Intimation to Stock Exchange (30-Jun-2022) Disclosure under Regulation 30 (25-May-2022) Board Meeting Outcome (24-May-2022) Clarification Reply NSE (13-Apr-2022) Clarification Reply BSE (13-Apr-2022)

Redemption of Unlisted Pref Shares (08-Mar-2022) Internal Auditor Reappointment and Preference Shares Redemption (12-Feb-2022) Board Meeting Outcome (11-Feb-2022) 350 TPD Sulphuric Acid Plant launched at Dahej (24-Jan-2022) Credit Rating Intimation (08-Dec-2021) Press Release - Listing on NSE (01-Dec-2021) Listing on NSE (01-Dec-2021) Board Meeting Outcome (1-Nov-2021) Closure of Trading Window (28-Sep-2021) Intimation to BSE (Annual Report - FY 2020-21) Intimation to BSE (100th AGM Notice) Book Closure & Cut-off Date (100th AGM) Board Meeting Outcome (10-Aug-2021) Closure of Trading Window (30-Jun-2021) Change in Directors and KMP (22-May-2021) Board Meeting Outcome (21-May-2021)

Board Meeting Outcome (8-Feb-2021) Board Meeting Outcome (10-Nov-2020) Cessation of Independent Director (17-Sep-2020) Board Meeting Outcome (14-Sep-2020) Board Meeting Outcome (6-Aug-2020) Disclosure of Material Impact of Covid-19 (5-Jun-2020) Board Meeting Outcome (11-May-2020)

Board Meeting Outcome (9-Feb-2020) Board Meeting Outcome (30-Oct-2019) Board Meeting Outcome (20-Sep-2019) Board Meeting Outcome (13-Aug-2019) Board Meeting Outcome (28-May-2019)