GHCL commissions salt and bromine as integration expands

GHCL has commissioned a 1.7 lakh metric-tonne (MT) annual vacuum-salt plant in August 2026 and a 2,400 MT annual bromine unit in October 2026, adding products made from waste heat and salt-work brine. It is also progressing a 17 lakh MT Zara Zumara salt works, extending its supply chain beyond soda ash.

What has GHCL commissioned?

GHCL has brought its vacuum-salt and bromine facilities into operation, with the vacuum-salt unit live since August 2026 and the bromine unit live since October 2026. The vacuum-salt plant has annual capacity of 1.7 lakh MT and disclosed capital expenditure of Rs 195 crore, while the bromine facility has 2,400 MT of annual capacity and capex of Rs 120 crore.

The two facilities use inputs linked to GHCL’s existing operations rather than an unrelated feedstock chain. GHCL says vacuum salt is produced using waste heat from its existing soda-ash plant, while bromine is recovered from brine at its own salt works. The combined disclosed capex for the two commissioned units is Rs 315 crore.

How is GHCL expanding its salt supply chain?

GHCL is expanding salt capacity from 6.0 lakh MT to 8.5 lakh MT through a 2.5 lakh MT addition that is in progress. The project carries disclosed capex of Rs 105 crore and raises the salt volume available for the company’s downstream requirements and product portfolio.

GHCL is separately developing a new salt works at Zara Zumara with annual capacity of 17 lakh MT and capex of Rs 350 crore. The company describes this project as a step to deepen backward integration, meaning a larger part of its salt requirement and brine-linked production chain would be supported by company-operated salt works.

GHCL also plans its own rail siding, which is yet to be started. The proposed siding has handling capacity of 12 lakh MT and capex of Rs 88 crore; GHCL says it is intended to reduce dependence on trucks and lower logistics costs. Unlike the 2.5 lakh MT salt expansion and the 17 lakh MT Zara Zumara project, the rail figure is a handling capacity rather than salt-production capacity.

How do the new products compare with GHCL’s core portfolio?

GHCL’s new products are smaller in installed capacity than its established soda-ash and sodium-bicarbonate operations, but they broaden its product mix. Soda ash remains the core product with installed capacity of 12 lakh MT a year, and sodium bicarbonate has 1.2 lakh MT a year of capacity, compared with 1.7 lakh MT for vacuum salt and 2,400 MT for bromine.

Vacuum salt addresses applications where salt quality and consistency are specified. GHCL identifies food processing, pharmaceuticals and healthcare, chemicals, and textile processing as customer sectors, while the presentation describes vacuum-evaporated salt as having sodium chloride purity above 99.8%, uniform grain size, lower moisture and faster dissolution than solar salt.

Bromine gives GHCL a brine-derived chemical product for pharma intermediates, agrochemicals, purified terephthalic acid, or PTA, catalyst applications and oilfield brines. The presentation identifies hydrobromic acid, or HBr, as a PTA catalyst. The bromine unit is therefore tied to brine recovery, whereas the vacuum-salt facility is tied to waste heat from the soda-ash plant.

What demand does GHCL cite for vacuum salt and bromine?

GHCL cites management estimates of an Indian vacuum-salt market worth about Rs 5,000 crore, with domestic production capacity of about 18 lakh MT and market growth of about 6% compound annual growth rate, or CAGR. The presentation links demand to packaged foods, purity-sensitive pharmaceutical and textile users, water-treatment projects, and specialty grades such as low-sodium and fortified salt.

The vacuum-salt presentation separates demand into iodised and non-iodised grades. It identifies food and beverage processing, commercial bakeries, dairy and packaged foods as iodised-salt uses, while pharmaceuticals, chemical manufacturing, textile processing and dyeing are cited for non-iodised vacuum salt. These end markets differ from GHCL’s soda-ash uses, which include detergents, flat and container glass, solar glass and emerging battery chemicals.

For bromine, GHCL estimates the Indian market at about Rs 1,100 crore, growing at about 5%, with demand above 50,000 MT in 2025. Its presentation says agrochemicals and pharmaceuticals account for about 60% to 70% of Indian bromine demand, compared with about 12% globally, while flame retardants represent about 50% of global demand but are negligible in India.

GHCL also identifies supply conditions relevant to domestic bromine production. Its management estimates state that Jordan and Israel supply more than 90% of India’s bromine imports, while India represents about 10% of global bromine capacity. The company cites brine access, regulatory compliance and customer approvals as entry barriers, alongside Gujarat’s concentration of brine resources, chemical clusters and ports.

How does this fit GHCL’s wider growth plan?

GHCL places the commercial start of vacuum salt and bromine in its 2024-2027 development period. During that period, it also says it received environmental-clearance approval for a greenfield soda-ash project in Kutch, Gujarat, and secured a land lease at the Zara Zumara salt field in Kutch, providing the stated setting for its new 17 lakh MT salt works.

The expansion follows earlier capacity additions in GHCL’s established products. Soda-ash capacity reached 12 lakh MT in 2022-2023, while sodium-bicarbonate capacity was doubled from 0.6 lakh MT to 1.2 lakh MT in 2023-2024. The 2026 commissioning of vacuum salt and bromine marks a shift from enlarging those two core chemical lines to adding salt- and brine-derived products.

Conclusion

GHCL has moved from a soda-ash-led portfolio toward a more connected salt, brine and chemical production chain. Its August 2026 vacuum-salt start uses waste heat, its October 2026 bromine start recovers value from brine, and the 2.5 lakh MT salt expansion is designed to lift salt capacity from 6.0 lakh MT to 8.5 lakh MT.

The next items to watch are execution of the Rs 350 crore Zara Zumara salt works and the proposed Rs 88 crore rail siding. GHCL has disclosed 17 lakh MT of annual capacity for the new salt works and 12 lakh MT of rail-handling capacity, but both projects remained in progress or yet to start in the presentation.