Aluminum Sulfate Price Trend and Forecast 2026-2027

Germany paid the most for aluminum sulfate in Q2 2026: USD 367/MT, up 1.9% from USD 360 in Q1. Steady municipal water-treatment demand kept the market firm there, and the bauxite costs didn't help either. Worldwide, the average moved up 1.9% too, to USD 327/MT from USD 321, mostly because the water utilities across every region we track kept buying at a dependable clip. What about H2 2026? We'd expect a global average somewhere in the USD 322-350/MT range, with the steady coagulant demand doing most of the work.

Most water treatment plants just call it alum. It's made by reacting bauxite ore, or purified aluminum hydroxide, with sulfuric acid. Its job is almost entirely municipal: drinking water and wastewater treatment, where it works as a coagulant that clumps suspended particles together so they can be filtered out. A smaller slice goes to paper sizing and various industrial uses. Three things move the price more than anything else: the bauxite and alumina feedstock costs, the sulfuric acid input costs, and how much the water utilities are actually spending on infrastructure.

The demand side of this market is remarkably steady compared to most industrial chemicals. Municipal utilities plan their coagulant purchases well in advance, often locking in annual or multi-year supply agreements, and that planning horizon smooths out a lot of the volatility that shows up in markets driven by spot buying. That steadiness is part of why the aluminum sulfate prices tend to track feedstock costs so closely rather than moving on their own. Producers with reliable access to the bauxite and to the sulfuric acid they need generally hold the pricing advantage in this market, and that advantage has shown up clearly in how China's large domestic base has kept it the most affordable of the four regions we track.

Aluminum Sulfate Price Forecast for 2026

Supply and demand should stay fairly balanced through H2 2026, with the feedstock costs doing most of the heavy lifting on price. Germany and the US both kept the municipal water-treatment demand steady through H1, and that's not likely to change much. China's large production base will probably keep growing to meet its own expanding water-infrastructure needs, while Brazil's urban water systems keep adding incremental demand.

None of the four markets we track is showing signs of real disruption heading into the back half of the year. That's fairly typical for this commodity. The bigger question for buyers is less about whether prices move and more about how fast the feedstock costs keep climbing, since that's really the dominant driver behind almost every quarter-to-quarter change we've logged.

What could push prices higher? A bauxite or sulfuric acid cost spike, basically, or a faster-than-expected pickup in water-infrastructure spending. What could pull them lower? A slowdown in municipal water-infrastructure spending, or expanded low-cost Chinese capacity outpacing the demand.

For the Quarter Ending June 2026

Aluminum Sulfate Prices Q2 2026:

• China: USD 280/MT
• United States: USD 345/MT
• Germany: USD 367/MT
• Brazil: USD 317/MT

Aluminum Sulfate Prices in China

China's aluminum sulfate producers passed through the firmer bauxite costs this quarter, and the domestic water-treatment demand held steady. The gain came to 1.8%, USD 275/MT to USD 280. Producers there said the pace of the increase matched what most buyers had already budgeted for.

Why did the price of Aluminum Sulfate change in Q2 2026 in China?

Nothing too dramatic here. The bauxite and sulfuric acid feedstock costs firmed a bit, and the domestic demand stayed exactly where it's been all year, steady.

Aluminum Sulfate Prices in United States

USD 345/MT. That's where the US landed in Q2, up 1.8% from USD 339 in Q1. The municipal water-treatment demand stayed steady, and the feedstock costs climbed just enough to nudge the market higher. Buyers there described the move as unremarkable, which is exactly how most of them like it.

Why did the price of Aluminum Sulfate change in Q2 2026 in United States?

The municipal demand didn't move much, honestly. It was the feedstock costs doing the work this time, climbing steadily through the quarter.

Aluminum Sulfate Prices in Germany

Germany gained 1.9% to USD 367/MT, the established water-utility demand staying firm through the period. That firmness has held for several quarters running now, and nothing in the local market suggests it's about to change.

Why did the price of Aluminum Sulfate change in Q2 2026 in Germany?

Germany's premium held for the reason it usually does: steady water-utility demand backed by the firming feedstock costs.

Aluminum Sulfate Prices in Brazil

Brazil climbed 1.9% to USD 317/MT, the growing urban water-infrastructure demand continuing to build. Several municipal projects moved from planning into procurement this quarter, adding a bit of extra pull on top of the usual steady baseline.

Why did the price of Aluminum Sulfate change in Q2 2026 in Brazil?

Brazil's cities keep expanding their water-treatment capacity, and that alone explains most of the move here.

For the Quarter Ending March 2026

Aluminum Sulfate Prices Q1 2026:

• China: USD 275/MT
• United States: USD 339/MT
• Germany: USD 360/MT
• Brazil: USD 311/MT

Aluminum Sulfate Prices in China

China gained 1.9% to USD 275/MT, the domestic demand firming as the year opened.

Why did the price of Aluminum Sulfate change in Q1 2026 in China?

The domestic water-treatment demand firmed as the year opened, and the feedstock costs edged higher right alongside it.

Aluminum Sulfate Prices in United States

US aluminum sulfate rose 1.8% to USD 339/MT, the water-treatment demand firming with the new year.

Why did the price of Aluminum Sulfate change in Q1 2026 in United States?

The water-treatment demand firmed with the new year, and the feedstock costs kept climbing steadily too.

Aluminum Sulfate Prices in Germany

Germany gained 1.7% to USD 360/MT, the water-utility demand staying firm through the quarter.

Why did the price of Aluminum Sulfate change in Q1 2026 in Germany?

The water-utility demand stayed firm, and the feedstock costs firmed modestly on top of that.

Aluminum Sulfate Prices in Brazil

Brazil climbed 1.6% to USD 311/MT, the urban water-infrastructure demand building through the quarter.

Why did the price of Aluminum Sulfate change in Q1 2026 in Brazil?

The urban water-infrastructure demand built through the quarter, and the feedstock costs firmed alongside it.

Quarterly Aluminum Sulfate Price Trends

The global average climbed steadily across the window, from USD 302/MT in Q1 2025 to USD 327 by Q2 2026, a net gain of about 8.3%. Every single quarter posted a gain here. That's a fairly rare thing in the commodity markets, but the steady municipal water-treatment demand and the firming feedstock costs kept the trend going without interruption, and none of the four regions we track saw so much as a single down quarter across the entire window.

What was Aluminum Sulfate Price in 2025?

2025 was a quietly solid year for aluminum sulfate. Starting near USD 302/MT in Q1, the global average finished at USD 316 by Q4, a gain of about 4.6%. The steady municipal water-treatment demand, together with the gradually firming bauxite and sulfuric acid costs, explains most of the year's climb, and the pattern looked remarkably consistent across all four of the regions we track.

Aluminum Sulfate Prices in China in 2025

Chinese prices moved from about USD 258/MT in Q1 2025 to USD 270 by Q4, up roughly 4.7%. The domestic water-treatment demand held steady all year, and China stayed the most affordable of the four markets throughout, a position it's likely to keep given the scale of its production base.

Aluminum Sulfate Prices in United States in 2025

US prices climbed from USD 318/MT in Q1 to USD 333 by Q4, a 4.7% gain. The steady municipal demand and the gradually firming feedstock costs both played a part, and neither showed any sign of slowing as the year wore on.

Aluminum Sulfate Prices in Germany in 2025

German prices rose from USD 338/MT in Q1 to USD 354 by Q4, up 4.7%. The established water-utility demand kept the market firm through every quarter, reinforcing Germany's position as the priciest of the four throughout the year.

Aluminum Sulfate Prices in Brazil in 2025

Brazilian prices moved from USD 292/MT in Q1 to USD 306 by Q4, a 4.8% gain, the strongest in percentage terms among the four markets, as the urban water-infrastructure investment kept building steadily through each quarter.

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Expert Market Research: Your Source for Real-Time Aluminum Sulfate Price Intelligence

We keep a continuous eye on the aluminum sulfate prices wherever it's produced or consumed at scale, tracing causation through the bauxite and sulfuric acid feedstock economics, the municipal water-treatment demand, and the regional capacity utilization. Our analysts track all four of the markets covered here on a monthly basis, so the figures you see in this report reflect the most current data available at the time of publication. Need pricing data, bespoke market analysis, or procurement advisory? Reach out to our team.