Press Release for the quarter ended June 30, 2026

July 27, 2026 The General Manager The Manager Corporate Relations Department Listing Department BSE Limited National Stock Exchange of India Limited Phiroze Jeejeebhoy Towers Exchange Plaza Dalal Street Bandra-Kurla Complex, Bandra (E) Mumbai – 400 001 Mumbai – 400 051 Scrip Code: 500770 Symbol: TATACHEM Dear Sirs, Sub: Press Release - Unaudited Consolidated and Audited Standalone Financial Results of the Company for the quarter ended June 30, 2026 Pursuant to Regulation 30 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, enclosed herewith is a copy of the Press Release with regard to the Unaudited Consolidated and Audited Standalone Financial Results of the Company for the quarter ended June 30, 2026. A copy of the press release is also being made available on the Company's website: www.tatachemicals.com. You are requested to take the same on record. Thanking you, Yours faithfully, For Tata Chemicals Limited Jeraz E. Mahernosh Company Secretary (FCS 7008) Encl.: as above TCL/PR/25/2627/Corporate Consolidated revenue from operations for the quarter ended 30 June 2026 at ₹ 4,255 Cr and EBITDA at ₹ 555 Cr 27 July 2026: Tata Chemicals Limited today declared its financial results for the quarter ended June 30, 2026. Commenting on the results, R. Mukundan, Managing Director & CEO, Tata Chemicals Limited, said, “During Q1FY27, amidst challenging external environment, the Company delivered a resilient performance, supported by higher sales and production volumes, strong operating efficiencies and disciplined cost management. However, exports from USA to Southeast Asia remained under pressure due to persistent unremunerative soda ash pricing. Financial results of the Company are aligned with the LIFE (Living, Industrial, Farm Essentials) strategy, reshaping portfolio towards sustainability-led, application-focused businesses while maintaining strength in core capabilities. Thus, transitioning the portfolio to non-cyclical segments, with focused capital allocation to build a structurally resilient growth platform with stable earnings. Living Essentials: Demand outlook remains positive, supported by premiumization in food, feed, pharma and beverage. Core products such as salt and bicarbonates should deliver stable growth, while prebiotics are expected to grow faster due to rising health and wellness consumption trends. Industrial Essentials (mainly Soda Ash): The near-term outlook remains challenging due to global oversupply, weak demand conditions, and excess industry capacity. Geopolitical tensions and elevated energy, raw material, and freight costs continue to pressure margins and realisations. Farm Essentials (mainly Rallis): India's farm sector outlook remains moderately positive, supported by improved irrigation, technology adoption, government initiatives, and resilient rural demand. However, monsoon variability, potential El Niño conditions, and higher input costs remain key risks to agricultural output.” Standalone Highlights Q1FY27 ● Revenue from operations stood at ₹ 1,281 Cr, up by 10% compared to Q1FY26 due to higher volumes and realisation. ● EBITDA at ₹ 364 Cr, up by 35% compared to Q1FY26, due to higher volumes and realisations partially offset by increase in costs. ● Profit After Tax from continuing operations at ₹ 343 Cr, up by 12% compared to Q1FY26. Consolidated Highlights Q1FY27 ● Revenue from operations at ₹ 4,255 Cr, up by 14% compared to Q1FY26, driven by higher volumes offsetting lower realisations. ● EBITDA at ₹ 555 Cr as compared to ₹ 649 Cr in Q1FY26, mainly due to lower realisations in overseas subsidiaries, especially US exports to South-East Asia markets. ● Profit After Tax at ₹ 60 Cr compared to ₹ 316 Cr for Q1FY26 primarily due to lower realisations, reduced other income, and lower JV income. ● Net debt (without leases) as on June 30, 2026, stood at ₹ 5,692 Cr, lower than PQ on account of monetisation of assets About Tata Chemicals Ltd. A part of over US$ 180 billion Tata Group, Tata Chemicals Limited, is a leading supplier of choice to Glass, Detergent, Industrial and Chemical sectors. The company has a strong position in the crop protection business through its subsidiary company, Rallis India Limited. Tata Chemicals has world class R&D facilities in Pune and Bangalore. Website: https://www.tatachemicals.com/ Follow us on: Tata Chemicals Limited | Tata Chemicals Limited | Tata Chemicals Limited | Tata Chemicals Limited | Tata Chemicals Limited For more information please contact: Chintan Joshi Jophy Joseph | Ayantika Sanyal Corporate Adfactors PR Communications Tata Mobile: +91 77389 55944 | Chemicals Ltd 7980491548 Mobile: 9223364761 jophy.joseph@adfactorspr.com chjoshi@tatachemicals.com Ayantika.sanyal@adfactorspr.com