Press Release

November 7, 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 second quarter and half-year ended September 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 second quarter and half-year ended September 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/31/2627/Corporate Standalone revenue from operations for Q2 FY27 grew by 8% to ₹ 1,303 Cr and EBITDA grew by 22% to ₹ 292 Cr Consolidated revenue from operations for Q2 FY27 grew by 8% ₹ 4,177 Cr and EBITDA at ₹ 381 Cr 7 November 2026: Tata Chemicals Limited today declared its financial results for the quarter and half year ended September 30, 2026. Commenting on the results, R. Mukundan, Managing Director & CEO, Tata Chemicals Limited, said, “During Q2FY27, Tata Chemicals Limited delivered a resilient operating performance in a challenging global environment. Higher sales, production volumes, improved operating efficiencies and disciplined cost management helped mitigate the impact of continued pressure on soda ash prices and elevated input, energy and logistics costs. Market conditions for soda ash remain challenging, with global oversupply, subdued demand and evolving trade flows continuing to weigh on prices and realisations. Exports from the US to Southeast Asia were particularly impacted by unremunerative pricing. In this environment, our immediate priorities remain operational excellence, structural cost reduction, cash generation and disciplined capital allocation. Despite a resilient standalone operating performance, our consolidated results were impacted by a sharp rise in UK natural gas costs. The prolonged Middle East conflict continued to drive inflation in key inputs, including limestone and CO₂, as well as energy, freight, and logistics costs across our operations. Additionally, the temporary suspension of Kenya operations weighed on consolidated performance. We continue to advance our LIFE strategy, progressively shaping the portfolio towards sustainability-led, application-focused and less cyclical businesses, while strengthening the competitiveness of our core operations. In Living Essentials, the demand outlook remains positive, supported by premiumisation and increasing consumption across food, feed, pharmaceutical and beverage applications. Salt and bicarbonates are expected to provide stable growth, while prebiotics offer attractive long-term opportunities driven by increasing consumer focus on health and wellness. In Industrial Essentials, particularly soda ash, the near to medium term outlook remains challenging due to excess global capacity, weak pricing and geopolitical and cost pressures. We will remain focused on improving efficiency, optimising our global manufacturing and supply chain footprint, and serving markets where we can generate sustainable value. In Farm Essentials, uneven rainfall and delayed sowing affected demand during parts of the quarter, although Kharif acreage subsequently recovered. The broader agricultural outlook remains cautiously positive, supported by healthy crop coverage, improving irrigation, policy support, technology adoption and resilient rural demand. However, weather volatility, crop-price movements and elevated input costs remain key near-term risks. While the external environment is likely to remain challenging in the near term, the strength of our integrated operations, disciplined balance sheet and ongoing portfolio transformation provide a strong foundation for building a more resilient and sustainable growth platform.” Standalone Highlights Q2FY27 ● Revenue from operations stood at ₹ 1,303 Cr, up by 8% compared to Q2FY26 due to higher volumes and realisation. ● EBITDA at ₹ 292 Cr, up by 22% compared to Q2FY26, due to higher volumes and realisations partially offset by increase in costs. ● Profit After Tax from continuing operations at ₹ 122 Cr, down by 31% compared to Q2FY26. Consolidated Highlights Q2FY27 ● Revenue from operations at ₹ 4,177 Cr, up by 8% compared to Q2FY26, driven by higher volumes in India and US and higher realisation in India and temporary suspension of operations in Kenya. ● EBITDA at ₹ 381 Cr as compared to ₹ 537 Cr in Q2FY26, mainly due to lower realisations in overseas subsidiaries, especially US exports to South-East Asia markets, higher energy and logistics costs in UK, temporary suspension of operations in Kenya. ● Loss After Tax at ₹ 50 Cr compared to Profit After Tax at ₹ 219 Cr for Q2FY26 primarily due to lower realisations, higher energy & logistics costs. reduced other income, and lower JV income. ● Net debt (without leases) as on September 30, 2026, stood at ₹ 6,127 Cr. Standalone Highlights H1FY27 • Revenue from operations stood at ₹ 2,584 Cr, up by 9% compared to H1FY26 due to higher volumes and realisations. • EBITDA at ₹ 656 Cr, up by 29% compared to H1FY26, effect of higher volumes, realisations despite energy and logistics cost pressure. • Profit After Tax from continuing operations was ₹ 465 Cr, down by 4% compared to H1FY26. Consolidated Highlights H1FY27 • Revenue from operations at ₹ 8,432 Cr, up by 11% compared to H1FY26, due to higher volumes despite pricing pressure in all regions except India. • EBITDA at ₹ 936 Cr as compared to ₹ 1,186 Cr in H1FY26, mainly due to lower realisations in overseas subsidiaries, especially US exports to South-East Asia markets, higher energy and logistics costs in UK, temporary suspension of operations in Kenya. • Profit After Tax (before exceptional items and NCI) at ₹ 10 Cr compared to ₹ 535 Cr for H1FY26. 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