Sulfuric Acid Price per Ton 2026: China FOB, India CFR and Europe Compared

The 2026 sulfuric acid market presents a split benchmark problem. Price reporting agencies publish China FOB, India CFR, and northwest Europe ex-works or delivered ranges that are not directly comparable because they contain different freight, insurance, assay, and contract structures. A tonne of 98.0% acid loaded at Nanjing or Fangcheng is priced before ocean freight; an India CFR quote includes vessel freight to Paradip, Mundra, or JNPT; a European price often embeds barge or truck logistics from Antwerp or Rotterdam and may be quoted as euros per tonne of 96.0% acid rather than 98.5% acid. Published forward indications for H1 2026 therefore require normalization before procurement or hedging decisions.

What Distinguishes a China FOB Assessment from an India CFR Settlement?

A China FOB assessment and an India CFR settlement are separated by more than ocean distance; they sit on different Incoterms 2020 responsibilities and different physical delivery points. Under FOB, the seller delivers sulfuric acid on board a vessel nominated by the buyer at the named Chinese port. Risk transfers once the acid is on board, and the buyer controls ocean freight and insurance. Under CFR, the seller pays freight to the named Indian discharge port, but the buyer remains responsible for cargo insurance unless the trade is modified to a CNF-plus-insurance or CIF basis. This distinction is frequently missed in published price comparisons. A China FOB number may therefore look USD 55–80/t cheaper than an India CFR number without representing the same delivered liability.

Indian importers typically compare CFR quotes from China, South Korea, and Japan against domestic ex-works prices from Indian smelter acid and sulfur-burning plants. The import parity calculation adds port handling, demurrage, customs clearance, and inland rail freight to the CFR price. The relevant comparison is not the headline CFR number but the acid cost delivered to the consuming plant gate, normalized to a 100% H₂SO₄ basis. For example, a CFR India quote of USD 120.00/t for 98.0% acid converts to USD 122.45/t on a 100% acid basis before other charges.

At Chinese export ports, the FOB assessment normally represents bulk acid of 98.0% H₂SO₄ loaded from terminals at Fangcheng, Nanjing, Qinzhou, or Zhangjiagang. Trade volumes are commonly 5,000–20,000 t parcels on stainless-steel or coated chemical tankers. Published FOB ranges for Q4 2025 loading indicated a band near USD 40–65/t; forward H1 2026 settlements remained thin in the visible market because large buyers and sellers were still negotiating semi-annual or quarterly tonnages. China’s export availability is driven by double-contact double-absorption sulfur-burning plants with 3+1 or 3+2 catalyst bed configurations, which recover heat as high-pressure steam. Smelter acid from copper and zinc operations adds a variable supply stream that is often cleared at lower domestic prices because it must be moved rapidly to avoid tank-top constraints. This by-product acid can contain trace metals, requiring blending or dilution before export against technical-grade specifications. The marginal cost of Chinese export acid therefore depends on sulfur feedstock costs, blend ratios of smelter acid, and coastal storage utilization rather than on a single mill netback.

Ocean Freight and Insurance Multipliers in the India CFR Benchmark

The freight component of an India CFR price is not a fixed premium. Bulk chemical tanker freight from eastern Chinese ports to west coast India was assessed in the USD 35–55/t band for 5,000–10,000 t parcels in Q4 2025. East coast discharge can be USD 5–10/t lower depending vessel position and port congestion. Insurance, when added by the buyer, commonly ranges from 0.15% to 0.25% of cargo value and may add USD 1.50–3.50/t. Port demurrage at Indian discharge terminals is a separate exposure: free time is often limited, and monsoon delays at west coast berths can add USD 4–8/t for slow discharge. Inland rail freight from the discharge port to central Indian consuming states can add another USD 15–30/t, which means a stated India CFR import price can understate the true delivered cost by USD 20–40/t before local distribution.

In northwest Europe, the price-discovery process differs from Asian port pricing because most large consumers buy through quarterly or semi-annual contract formulas linked to the elemental sulfur price plus conversion cost. The resulting contract price is frequently quoted ex-works Rotterdam, Antwerp, or a producer site, with acid strength of 96.0–98.5%. European prices are also shaped by REACH (EC) No 1907/2006, CLP Regulation (EC) No 1272/2008, and the Industrial Emissions Directive 2010/75/EU. Sulfuric acid placed on the EU market is classified as skin corrosive and is subject to strict storage and transport controls. The product’s EC number 231-639-5 and UN 1830 transport designation require specific tank specifications, driver training, and emergency response documentation that add fixed compliance costs to European distribution. These regulatory costs are not visible in a Chinese FOB quote and are only partially embedded in an India CFR import.

European sulfur-burning acid plants also carry higher energy and carbon exposure than many Asian export units. Heat recovery from sulfur burning is credited against the cost of production, but electricity and steam prices in northwest Europe have been more volatile than in China. The EU Emissions Trading System does not directly cover sulfuric acid as a product, but carbon costs enter through purchased electricity and steam used in acid cooling, pumping, and tail gas scrubbing. This makes the European price less sensitive to ocean freight and more sensitive to local utility rates, maintenance turnaround schedules, and environmental permit conditions.

Table 1. Indicative regional price and cost components for H1 2026 benchmark comparisons.

When Local Environmental Levies Shift NW Europe Delivered Economics

European sulfuric acid contracts are more sensitive to environmental operating permits than Asian port spot quotes. A sulfur-burning plant operating under Directive 2010/75/EU must hold a permit that sets emission limits for SO₂, SO₃ acid mist, and dust. Tail gas scrubbing and mist eliminators add fixed and variable cost, particularly when plants are operated at reduced rates or during catalyst replacement turnarounds. Some European plants use cesium-promoted vanadium pentoxide catalyst in the final converter pass to lower equilibrium SO₂ in the tail gas. That catalyst is more expensive than conventional potassium-promoted material, but it permits compliance without large absorber recirculation increases. This trade-off affects the marginal cost of output and therefore the floor price at which European producers are willing to contract 2026 tonnage.

Assay clauses and concentration adjusters are applied unevenly across the three regions. A Chinese FOB cargo sold as 98.0% acid may contain total acidity measured as 98.2% or 98.4%; the seller is paid on the invoice assay, not on the nominal strength. An Indian buyer receiving 98.5% acid may impose a penalty if total acidity falls below 98.3% or if iron and chloride exceed agreed limits. In Europe, the same nominal product may be supplied as 96.5% acid to lower freezing point during winter barge transport, while battery-grade and alkylation-grade acid command higher premiums due to tighter metal and organic limits. The comparison of published regional price levels must therefore include assay basis and quality adjusters. A lower headline Europe ex-works price for 96.0% acid is not necessarily cheaper than a China FOB quote for 98.0% acid once freight and concentration are normalized.

Storage and handling constraints also differ by region. Concentrated sulfuric acid at 98.0% or 98.5% is typically stored in carbon steel tanks with a corrosion allowance, but dilute acid or acid contaminated with water can attack carbon steel rapidly. Many import terminals and large consuming sites specify anodically protected austenitic stainless steel for long-term storage and transfer lines. Flow velocities in carbon steel piping are usually held below 0.6–1.2 m/s at ambient temperature to limit erosion-corrosion. At higher temperatures, the allowable acid concentration range narrows because steel corrosion accelerates. These engineering limits matter for price because they determine whose terminal can accept a cargo without additional blending or dilution infrastructure. A plant with only mild steel storage may reject a 96.0% cargo or insist on drying and assay guarantees, increasing the effective acquisition cost.

Table 2. Quality parameters commonly referenced in sulfuric acid trade specifications and analytical methods.

For a 98.5% India CFR cargo with an iron content of 120 mg/kg and a chloride content below 10 mg/kg, post-discharge storage in anodically protected stainless steel tanks is specified to avoid hydrogen grooving and high-temperature corrosion. Carbon steel is acceptable for concentrated acid at ambient velocities of 0.6–1.2 m/s, but not for dilute acid above 40°C. Procurement comparisons for 2026 should therefore convert quotations to a 100% H₂SO₄ basis and add assay penalties, ocean freight, demurrage, port holding charges, and inland logistics before ranking suppliers.