Global Sulphuric Acid for Chemical Manufacturing Market Outlook, 2031

Sulphuric acid is the most produced chemical in the world by volume, with global output commonly estimated at around 270 million tonnes a year, and its consumption has long been treated as a barometer of industrial activity. Roughly half or more is used to make phosphate fertilisers, but a large and diverse share, commonly estimated at around a fifth of global demand, goes into chemical manufacturing, where acid acts as a reactant, catalyst, dehydrating agent or sulphating agent. Key chemical uses include titanium dioxide pigment by the sulphate route, which consumes roughly 3 to 4 tonnes of acid per tonne of pigment; caprolactam for nylon 6, where ammonium sulphate is a major by-product; hydrofluoric acid from fluorspar; methyl methacrylate by the acetone cyanohydrin route; aluminium sulphate and other inorganic sulphates; viscose rayon and cellulose acetate; nitration acids for explosives, dyes and pharmaceuticals; sulphonation for detergents and specialty chemicals; and drying of chlorine in chlor-alkali plants. About three quarters of acid supply is produced by burning elemental sulphur recovered from oil and gas processing, and about a quarter comes from capturing SO₂ at copper, zinc, nickel and lead smelters, so chemical producers depend on energy and metals industries for their raw material.

That dependence was exposed sharply in 2026. The Strait of Hormuz, through which an estimated 45% to 50% of seaborne sulphur trade normally passes, was effectively closed from early March after the outbreak of war involving Iran, Persian Gulf sulphur exports collapsed, Turkey banned sulphur exports from April, and China, the largest acid exporter, banned sulphuric acid exports from 1 May. Spot sulphuric acid prices climbed above USD 500 per tonne by late May, more than doubling in some regions within weeks, before easing to around USD 280 per tonne FOB China and USD 430 per tonne CIF United States by August as some flows resumed. For chemical manufacturers, acid is usually a modest share of total cost but an essential, hard-to-store input: it is corrosive, expensive to transport long distances and typically held in only weeks of inventory, so many producers operate captive sulphur-burning plants or acid regeneration units close to their sites. Europe's chemical industry, already under pressure from high energy costs and weak demand, saw further consolidation, while Röhm commissioned a new sulphuric acid unit at Worms in 2025 to support MMA production. Acid regeneration, recycling of spent acid and smelter acid supply are gaining strategic importance.

Drivers Broad Use as a Reactant and Process Chemical Sulphuric acid is used in the production of titanium dioxide, caprolactam, hydrofluoric acid, methyl methacrylate, inorganic sulphates, viscose fibres, explosives, dyes, pharmaceuticals, detergents and many specialty chemicals, so its demand grows with industrial output in construction, packaging, textiles, coatings and consumer goods.
Growth of Chemical Production in Asia and New Applications Chemical capacity expansion in China, India, Southeast Asia and the Middle East increases acid demand, while battery materials, fluorochemicals for refrigerants and electronics, and semiconductor-grade chemicals create higher-value applications for purified acid.

Challenges Raw Material Dependence and Price Volatility Acid supply depends on sulphur recovered from oil and gas and on metal smelting, not on chemical demand, so prices can swing sharply, as in 2021 to 2022 and during the 2026 Hormuz crisis and Chinese export ban. Export restrictions by producing countries can tighten regional markets quickly.
Hazardous Handling and Logistics Sulphuric acid is highly corrosive and dangerous to transport and store, requiring specialised tank cars, ships and storage, and accidents can cause serious harm. Transport costs limit long-distance trade and create regional price differences.

Trends Spent Acid Regeneration and Circular Supply Chemical producers and service companies are expanding spent acid regeneration, recovery of acid from waste streams and use of by-product acid to reduce dependence on purchased sulphur and acid and lower environmental impact.
Captive Acid Plants and Energy Recovery Producers are building or upgrading captive sulphur-burning acid plants that recover heat from the highly exothermic process to generate steam and electricity, improving energy self-sufficiency and supply security.



Inorganic chemicals and pigments account for the largest share of sulphuric acid use in chemical manufacturing because titanium dioxide, aluminium sulphate, hydrofluoric acid and other sulphates consume acid in large, continuous volumes as a primary reactant. Inorganic chemicals and pigments represent the largest category of acid use within chemical manufacturing. Titanium dioxide produced by the sulphate process digests ilmenite or slag with concentrated acid, consuming roughly 3 to 4 tonnes of acid per tonne of pigment and generating spent acid and ferrous sulphate that must be treated or recycled; although the chloride route has gained share, the sulphate route remains dominant in China. Aluminium sulphate, used as a water treatment coagulant and in papermaking, is made by reacting acid with aluminium hydroxide or bauxite. Hydrofluoric acid, the starting point for fluorochemicals, refrigerants, fluoropolymers and lithium battery electrolyte salts, is produced by reacting fluorspar with sulphuric acid, consuming more than a tonne of acid per tonne of HF. Hydrochloric acid by the Mannheim process and other inorganic salts such as sodium sulphate, copper sulphate, zinc sulphate and ferric sulphate also rely on acid. Organic chemicals and intermediates form the second major category, including caprolactam for nylon 6, where acid and oleum are used in the Beckmann rearrangement and large amounts of ammonium sulphate fertiliser are co-produced, methyl methacrylate by the acetone cyanohydrin route, which consumes significant acid and requires spent acid regeneration, and nitration processes using mixed nitric and sulphuric acid to make nitrobenzene for MDI polyurethanes, dinitrotoluene for TDI, explosives and dye intermediates. Sulphonation and sulphation for linear alkylbenzene sulphonate detergents, surfactants and specialty chemicals often use sulphur trioxide or oleum produced in acid plants. Pharmaceuticals, agrochemicals and fine chemicals use acid as a reagent, catalyst and pH adjuster. Battery materials and semiconductor chemicals are adding newer, higher-value uses.

Concentrated acid of 93% to 98% strength accounts for most chemical manufacturing consumption because it is the standard commercial grade for reactions and dehydration, while oleum, dilute and high-purity grades serve sulphonation, specific processes and electronics. Concentrated sulphuric acid, typically 93% or 98% strength, is the workhorse grade for chemical manufacturing, used in digestion, neutralisation, dehydration and catalysis, and it is the form in which most acid is shipped by rail, truck and sea. Its strong dehydrating power makes it essential for chlorine drying in chlor-alkali plants and for many condensation reactions. Oleum, also called fuming sulphuric acid, contains free sulphur trioxide dissolved in acid at strengths commonly between 20% and 65%, and it is used in sulphonation, nitration and caprolactam production where stronger sulphonating power is needed. Liquid sulphur trioxide, produced in acid plants, is used directly in detergent sulphonation reactors. Dilute acid grades below 70% are used in pickling, pH adjustment, battery manufacturing and some chemical processes, often produced by diluting concentrated acid on site to reduce transport risk. High-purity and electronic-grade acids, with metal impurities measured in parts per billion, are used in semiconductor wafer cleaning, battery materials and pharmaceutical production and command large premiums over commercial grade. Spent acid, contaminated with organic material or water after use in alkylation, nitration or MMA production, is regenerated by thermal decomposition into SO₂ and reconverted into fresh acid in regeneration plants operated by companies such as Veolia, Elessent Clean Technologies technology licensees and chemical producers themselves. Selection of grade depends on reaction chemistry, required purity, safety and transport economics, and many large chemical sites receive multiple grades from captive or neighbouring acid plants. Concentration control, impurity limits and stable supply are therefore as important as price for most chemical buyers, especially in continuous plants.

Sulphur-burning acid plants supply the largest share of acid for chemical manufacturing because elemental sulphur is easy to transport and store, while smelter acid and regenerated acid provide significant regional and site-specific supply. Sulphur-burning acid plants, which combust elemental sulphur to SO₂, oxidise it over vanadium catalysts to SO₃ and absorb it in water, produce about three quarters of global sulphuric acid and are the main supply source for chemical manufacturers. Elemental sulphur, roughly 90% of which is recovered as a by-product of oil refining and natural gas processing, is shipped as solid or molten sulphur from producers in the Middle East, Central Asia, Russia, North America and China, so acid supply is closely tied to hydrocarbon processing. The Persian Gulf region is the largest sulphur exporter, which is why the 2026 Strait of Hormuz closure caused such disruption. Sulphur-burning plants generate large amounts of high-pressure steam, often providing a site's power and heating, making them attractive for integrated chemical complexes. Smelter acid, produced by capturing SO₂ from copper, zinc, nickel and lead smelting, accounts for about a quarter of global supply and is significant in China, Japan, South Korea, Chile, Peru, Germany, Belgium and Canada; its output follows metal production rather than acid demand, and chemical producers near smelters often benefit from lower-cost supply. Pyrite roasting remains a small source, mainly in China. Regenerated acid from spent acid regeneration plants supplies alkylation, MMA and nitration users in a closed loop, reducing waste and raw material needs. Merchant acid is traded regionally by distributors and traders such as Trafigura and Interacid, while captive production dominates at large chemical sites. Supply security has become a priority after the 2026 disruptions, prompting producers to diversify sources and hold additional inventory. Rail networks remain essential.

Large integrated chemical producers account for the largest share of acid consumption in chemical manufacturing because their continuous high-volume processes need assured supply, while specialty chemical, pharmaceutical, pigment and fibre producers form important merchant-market customers. Large integrated chemical companies, including producers of caprolactam, MMA, fluorochemicals, nitrobenzene and MDI, TDI and titanium dioxide, account for the largest share of acid consumption and frequently operate captive acid plants or regeneration units. Titanium dioxide producers such as Tronox, Chemours, Kronos, Venator and Chinese producers including LB Group are major users, with sulphate-route plants in China accounting for much of the volume. Fluorochemical producers, including Orbia's Koura, Chemours, Honeywell's former fluorochemicals business Solstice Advanced Materials, Arkema and Chinese firms, consume acid in hydrofluoric acid production. Fibre producers, including viscose makers such as Birla Cellulose, Lenzing and Sateri, use acid in spinning baths and recover sodium sulphate. Specialty and fine chemical producers, pharmaceutical manufacturers and agrochemical companies buy smaller volumes of merchant acid and higher-purity grades. Detergent and surfactant producers use sulphur trioxide and oleum for sulphonation. Chlor-alkali producers use acid for chlorine drying. Electronics chemical suppliers purify acid to semiconductor grades for chip fabs in Taiwan, South Korea, Japan, China and the United States. Water treatment chemical producers make aluminium sulphate and ferric sulphate. Purchasing patterns range from long-term supply contracts with smelters and sulphur burners to spot purchases through distributors. During the 2026 shortage, customers with captive production or long-term smelter contracts were insulated, while spot buyers faced sharply higher prices and allocation. Inventory strategies changed after 2026, with several European and Asian chemical producers adding acid storage capacity, qualifying second suppliers and negotiating longer contracts with smelters to secure baseline volumes. Buyers also review freight options, including rail versus truck delivery, to reduce cost.

Asia-Pacific is the largest consumer of sulphuric acid for chemical manufacturing because China hosts the world's largest titanium dioxide, caprolactam, fluorochemical and fine chemical industries, while North America and Europe have mature, integrated chemical sectors. Asia-Pacific dominates consumption, led by China, which produces more than a third of the world's sulphuric acid and accounts for the majority of global sulphate-route titanium dioxide, a large share of caprolactam, fluorochemicals, dyes and pharmaceutical intermediates; China's export ban from 1 May 2026 kept more acid at home but tightened supply elsewhere. India's chemical, pharmaceutical, dye and pigment industries are growing rapidly, Japan and South Korea have large smelter acid supply and advanced chemical and electronics industries, and Southeast Asia's chemical production is expanding. North America has integrated chemical sites along the US Gulf Coast, sulphur from refineries and gas processing and smelter acid in Canada, and saw prices more than double during the 2026 disruption. Europe has a large but pressured chemical industry, with high energy costs, plant closures and consolidation, and smelter acid in Germany, Belgium, Spain, Finland and Poland, while Röhm and other producers invest in captive acid units. The Middle East is a major sulphur source and a growing chemical producer, though the 2026 war disrupted exports. Latin America, led by Brazil, Mexico and Chile, and Africa, including Morocco and South Africa, use acid in chemicals but predominantly in fertilisers and mining.

• August 2026 – Sulphuric acid prices ease from peak: Acid prices fell to around USD 280 per tonne FOB China and USD 430 per tonne CIF United States as some sulphur flows resumed, though they remained well above pre-crisis levels.

• May 2026 – China bans sulphuric acid exports: China halted exports of sulphuric acid from 1 May to protect domestic supply, pushing spot prices above USD 500 per tonne in some markets.
• April 2026 – Turkey bans sulphur exports: Turkey introduced a ban on sulphur exports in response to domestic shortages caused by Middle East disruptions.
• March 2026 – Strait of Hormuz closure disrupts sulphur trade: The war involving Iran closed the strait, through which an estimated 45% to 50% of seaborne sulphur trade passes, causing Persian Gulf sulphur exports to collapse.
• September 2025 – Röhm commissions new sulphuric acid plant at Worms: Röhm commissioned a new sulphuric acid unit at its Worms site to supply its methyl methacrylate production after the previous unit was damaged by fire in 2023.


Considered in this report
• Historic Year: 2020
• Base Year: 2025
• Estimated Year: 2026
• Forecast Year: 2031

Aspects covered in this report
• Global Sulphuric Acid for Chemical Manufacturing Market with its value and forecast along with its segments
• Various drivers and challenges
• Ongoing trends and developments
• Top profiled companies
• Strategic recommendation

By Application
• Titanium Dioxide
• Caprolactam and Nylon Intermediates
• Hydrofluoric Acid and Fluorochemicals
• Methyl Methacrylate
• Nitration Chemicals
• Sulphonation and Detergents
• Inorganic Sulphates
• Viscose and Cellulose Fibres
• Pharmaceuticals and Fine Chemicals

By Grade
• Concentrated Acid
• Oleum and Sulphur Trioxide
• Dilute Acid
• High Purity and Electronic Grade
• Regenerated Acid

By Source
• Sulphur Burning Plants
• Smelter Acid
• Pyrite Roasting
• Spent Acid Regeneration

By Supply Model
• Captive Production
• Long Term Contracts
• Merchant and Spot Supply