Intimation regarding proposed investment in/Acquisition of equity shares of Yesaryes Energy private limited to source green energy - solar power

10th October, 2026 BSE Limited National Stock Exchange of India Limited Department of Corporate Services Exchange Plaza, 5th Floor Phiroze Jeejeebhoy Towers Plot No. C/1G, Block Dalal Street Bandra-Kurla Complex, Bandra (East) Mumbai - 400 001 Mumbai - 400 051 Scrip Code: 543336 Scrip Symbol: CHEMPLASTS Dear Sir/Madam, Sub: Disclosure under Regulation 30 read with Part A Para A (1) of Schedule III of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 (“Listing Regulations”) – Proposed Investment in /Acquisition of Equity Shares of Yesaryes Energy Private Limited to source Green Energy – Solar Power Pursuant to Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 read with SEBI Master Circular No. HO/49/14/14(7)2025-CFD-POD2/I/3762/2026 dated January 30, 2026, we wish to inform that Chemplast Sanmar Limited (the “Company”) is entering into a Power Purchase Agreement with Yesaryes Energy Private Limited (“Power Producer”) and a Share Purchase Agreement with Veebee Yarnntex Private Limited (“Seller”) and Yesaryes Energy Private Limited in terms of which the Company will be acquiring equity shares of Yesaryes Energy Private Limited, details of which are contained in Annexure 1 below. This would enable the Company to source green energy (solar power) from the Power Producer under Group Captive Power Plant Scheme. Yesaryes Energy Private Limited is a Company incorporated under the Companies Act, 2013 and it is operating Solar energy Power Plant in Tamil Nadu having Capacity of 37.5 MW (the “Plant”). This would enable the Company to source environment friendly Green Energy (Solar power) from this Plant of the Power Producer, for captive consumption and would help in reducing the energy cost of the Company. Date & Time of occurrence of the event/information: 10th October, 2026 & 11.30 AM (IST) This is for your information and records. Thanking you, Yours faithfully, For CHEMPLAST SANMAR LIMITED P SRINIVASAN Company Secretary & Compliance Officer Membership No. ACS 10129 Annexure -1 Disclosure of information pursuant to Regulation 30 of the Listing Regulations Disclosure for acquisition of shares (including agreement to acquire) S. No Particulars Details 1 Name of the target entity, details in Yesaryes Energy Private Limited (Power brief such as size, turnover etc.; Producer) is a Company incorporated on 20th January, 2025 in which Chemplast Sanmar Limited (the “Company”), is acquiring equity shares to the extent of 27% of its total paid up share capital. Size and Turnover: Not applicable. The Power Producer has commenced its commercial operations effective from April, 2026 2 Whether the acquisition would fall The acquisition of shares involves no related party within related party transaction(s) transaction. and whether the promoter/ promoter The promoter/ promoter group/ group group/ group companies have any Companies of the Company do not have any interest in the entity being acquired? interest in the entity whose equity shares are being If yes, nature of interest and details acquired thereof and whether the same is done at “arm’s length”; 3 Industry to which the entity being Solar energy – Power Producers. acquired belongs; 4 Objects and impact of acquisition Yesaryes Energy Private Limited is operating (including but not limited to, Solar energy Power Plant in Tamil Nadu having a disclosure of reasons for acquisition of Solar Capacity of 37.5 MW. target entity, if its business is outside The Agreement being entered into with the Power the main line of business of the listed Producer, would enable the Company to source entity); environment friendly Green Energy (Solar) from this Plant of the Power Producer, for captive consumption and would help in reducing the energy cost of the Company. 5 Brief details of any governmental or No approvals required. regulatory approvals required for the acquisition; 6 Indicative time period for completion Within the statutory time limits of the acquisition; 7 Consideration - whether cash The Company has agreed to acquire in one or consideration or share swap or any more tranches, in aggregate, 27% of the total paid- other form and details of the same up equity share capital in cash in the Power Producer. 8 Cost of acquisition and/or the price at Rs.45 Lakhs which the shares are acquired 9 Percentage of shareholding / control 27% acquired and / or number of shares acquired 10 Brief background about the entity Brief background about the entity acquired in acquired in terms of products/line of terms of products/line of business acquired: business acquired, date of Generation and transmission of electricity from incorporation, history of last 3 years Solar energy. turnover, country in which the acquired entity has presence and any Date of Incorporation: 20th January, 2025 other significant information (in brief); Turnover: The Power Producer has commenced its commercial operations effective from April, 2026. Accordingly, turnover of last 3 years is not applicable. Country of Incorporation: India