Tata Chemicals board approved an investment of ₹135 crore to add 350 ktpa dense soda ash at Mithapur over 24 months, and ₹775 crore to add 50 ktpa precipitated silica at Cuddalore over 27 months.
Source: Tata Chemicals Press Release (NSE Exchange Fillings) | Published on Nov 21, 2025
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As quoted in the press release of Tata Chemicals (NSE Exchange Filings), on 21 November 2025, the board of Tata Chemicals Ltd convened and approved two significant investment proposals within the framework of SEBI's Listing Regulations. The first matter is regarding a dense soda ash manufacturing facility in Mithapur, Gujarat. The second matter concerns a precipitated silica plant in Cuddalore, Tamil Nadu.
According to the board resolutions:
₹135 crore will be allocated to increase capacity of dense soda ash at Mithapur.
₹775 crore will be used to augment capacity at the precipitated silica facility at Cuddalore.
The planned financing for both development projects is to consist of internal accruals and other possibilities.
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Mithapur soda ash: existing ~1,091 ktpa capacity, ~90% utilisation; addition of 350 ktpa in 24 months.
Cuddalore silica: existing ~13.8 ktpa capacity, ~86% utilisation; addition of 50 ktpa in 27 months.
Total investment: ₹910 crore combined.
Focus for soda ash: sustainability-driven demand; for silica: demand from the rubber and automotive tyre industries.
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Product / Plant | Existing capacity | Utilisation | Capacity addition | Investment | Time period |
Dense soda ash (Mithapur) | 1,091 ktpa | ~90% | +350 ktpa | ₹135 crore | 24 months |
Precipitated silica (Cuddalore) | 13.8 ktpa | ~86% | +50 ktpa | ₹775 crore | 27 months |
The growth of the soda ash and silica businesses is a capital investment cycle, which in terms of operational activity change at Tata Chemicals, is demonstrated by these two plant expansions. The soda ash business at Mithapur, which is a mature site running at high capacity, is close to a substantial capacity expansion. The precipitated silica business is much smaller footprint-wise, but the investment is major for a business of this size, which indicates a dedicated investment for growth.
Both investments happening at the same time likely means a phased investment strategy, and it also means project management will be important to track timelines, manage costs, and respond to fluctuations in demand in the specialty chemicals and industrial sectors.
Tata Chemicals share price stands at ₹ 810.00 per share on the BSE as of 21 Nov 2025 at 15:30 PM IST, down by 1.09%.
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