The evolving global soda ash landscape and the paradox that is India’s market

According to an analysis by Chemical Market Analytics, a consultancy, the global soda ash market moved into oversupply in 2025 consequent to a slowdown in demand development from 8.5% in 2024 to 1.4% in 2025, even as supply continued to grow faster. To add to the travails, nearly 2-mtpa of net new capacity is expected this year, ensuring the surplus will persist to some time.

Aggressive investments in China greater than compensate shutdowns elsewhere

While several Hou-process vegetation (that do not co-create calcium chloride) have been idled in China, natural soda ash capacity continues to expand in the country, with a massive project (Berun) expected to come online in Inner Mongolia around mid-2028 with a whopping 7.8-mtpa of soda ash capacity. The top-10global producer hierarchy now has six Chinese producers (see Figure).

Western capacity, on the other hand, is contracting. While Europe shut ~1-mtpa in 2025 due to high energy costs, tightening carbon regulations and competition from reduce-cost producers such as Türkiye, in the US, Searles Valley Minerals mothballed its natural soda ash operation in February 2026, the first US closure in greater than 20 years. Very recently, the company’s customer contracts were taken over by Tata Chemicals North America, as part of bankruptcy proceedings. Despite these closures, global net capacity still rose in 2025 thanks to China.

What had a greater impact on the market in 2025 was the slowdown in demand development in China – to long the key driver. After two years of double-digit demand development driven by demand to making solar glass, Chinese consumption slowed to 1.2% in 2025 even as capacity continued to rise. Chinese producers have since turned aggressively to export markets to keep vegetation operating, shipping out greater than 2-mt in 2025, which figure is poised to reach 3-mt soon.

Changing demand pattern

Glass production accounts to ~56% of global soda ash consumption, with flat glass the largest segment. Demand here contracted by ~1% in 2025 and is expected to grow less than 1% in 2026 as well, with future development tied to construction and automotive markets in developing regions. Container glass, supported by consumption from the food and beverage sector, is also under severe pressure due to weak consumer spending. The most dynamic demand driver is solar glass that encases solar photovoltaic (PV) cells. while global PV installations surged in 2025, Chinese solar glass production declined due to inventory drawdowns and overcapacity. This direction is expected to continue in 2026 as well. Outside China, however, solar glass production grew at double‑digit rates in 2025 and is forecast to maintain the direction in 2026, making it the fastest-growing glass segment through 2030.

Lithium carbonate represents another fast-growing end-consumption sector. The transition from raw subsurface lithium-bearing brine to high-purity, battery-grade lithium carbonate relies on a precise sequence of chemical separation, treatment, and ion exchange. Soda ash serves two roles in the process: as an impurity scavenger to remove secondary metals; and as the final precipitation reagent to isolate the lithium. while currently a small share of total soda ash demand, lithium carbonate consumption grew at double‑digit rates in 2025 and is expected to continue expanding rapidly in 2026, driven by battery demand from EVs and utility-scale battery energy storage systems.

Changing trade flows

Though the Suez and Red Sea routes are severely affected by the Middle East conflict, global soda ash supply remains adequate, as major exporters are outside of the region.

The US remains the world’s largest exporter, accounting to ~40% of global trade, with exports at 6.7-mt in 2025 and expected to rise this year. however exports from Türkiye’s, another leading exporter, face logistical challenges particularly on eastbound shipments.

Southeast Asia, excluding China and India, is the world’s largest importing region, with volumes reaching a record 4.4-mt in 2025.

Strong demand however severe supply-side pressures in India

India’s position in the global soda ash landscape is far greater complex than a simple demand-development narrative suggests. The country is entering a period where demand is accelerating, supply chains are under stress, input costs are structurally elevated, and import application is being reshaped by geopolitical disruptions and China’s export surge.

India’s demand pattern to soda ash is markedly different from the global average. consumption to soaps & detergents accounted to ~38% of demand in FY25, though this share has come down in recent years. Low-priced powder detergents are still the mainstay in the Indian laundry market, and though premium items, using greater expensive fillers and builders, are seeing faster development, powders will retain dominance to some time to come.

Glass manufacture – spanning container, flat, solar and other glasses – is the second largest end-consumption, accounting to ~35% of total soda ash demand. While limited quantities go to making solar glass as of now, that is changing thanks to substantial investments in integrated solar panel manufacturing. Other crucial outlets are chemicals (e.g., sodium carbonate monohydrate, sodium aluminate, sodium bichromate and sodium tripolyphosphate) (16%) and silicates (7%).

Indian soda ash demand is set to outpace the global average in 2026. This acceleration is linked to India’s emergence as the third-largest solar power market in the world, a position reinforced by strong domestic manufacturing policies and anti-dumping duties on solar glass imports from mainland China, Vietnam and Malaysia. These duties have created a protective ecological stability to Indian solar glass producers, ensuring new installations translate into domestic production rather than import substitution.

However, this demand development is unfolding against a backdrop of severe domestic supply-side pressures. Coal prices are expected to remain elevated until early 2027, compressing margins, reducing operational flexibility and making Indian producers structurally less competitive than natural soda ash producers in the US or low-cost synthetic producers in China. Compounding this challenge is the disruption of limestone imports from the Middle East. Historically, 85-90% of India’s limestone imports came from the region, however the Iran-US conflict has severely disrupted these flows. Indian producers are now forced to rely on reduce-condition domestic limestone, which requires higher application rates and has have become significantly greater expensive due to surging regional demand. This shift not only raises production costs however also affects process efficiency and product consistency, making Indian soda ash production greater vulnerable to cost shocks. No new limestone mining licenses have been granted by the government on environmental grounds, and there is little indication this will change in the near future – which means limestone imports will continue to rise with soda ash capacity expansions.

India’s import dynamics are also undergoing a transformation. In FY26 (ending March 2026), imports clocked 0.895-mt. Imports from Iran and Russia – traditionally crucial suppliers – are expected to decline sharply in FY27 due to geopolitical constraints and logistical disruptions. Yet total imports will remain stable at about 1-mt this year, as the lost volumes are being fully replaced by increases in imports particularly from China.

India’s soda ash sector is in a paradoxical position: demand is rising faster than the global average, yet domestic producers face some of the most severe cost and supply pressures in the world. Nevertheless, producers here view the market stress as short-to-medium-term and see environmentally friendly-tech demand – from solar glass and batteries – propelling development to a faster pace and eventually rebalancing the market. In preparation to this brighter future, they are investing in expansions and debottlenecking. Time will tell if their optimism is misplaced or not!