Calcium sulfite, the inorganic calcium salt of sulfurous acid, is valued as a reducing agent and oxygen scavenger across water treatment, pulp and paper processing, food preservation, and gas scrubbing. It is most closely tied to flue gas desulfurization (FGD), forming when sulfur dioxide from coal-fired power generation reacts with limestone or hydrated lime, which keeps its cost linked to sulfur and calcium feedstock dynamics and to the power and heavy-industrial sectors that generate and consume it.
Through H1 2026, calcium sulfite pricing carried forward the firm-to-stable tone set late in 2025. Elevated sulfur costs continued to support production economics and discouraged aggressive discounting. Asian material stayed range-bound, with steady power-generation and scrubbing demand met by cautious, need-based buying that left inventories balanced. European prices carried a firmer undertone, reflecting sulfur feedstock strength and compliance-driven costs, with periodic plant maintenance intermittently tightening supply. North American material stayed comparatively stable, supported by dependable domestic FGD output, even as energy-cost swings introduced occasional short-lived movement.
Downstream demand remained dependable rather than buoyant. Consumption from water purification, paper manufacturing and emissions-control applications offered a consistent baseline, but the absence of a strong cyclical upswing in construction or manufacturing kept buying disciplined. With firm feedstock costs on one side and measured demand on the other, the market stayed balanced through the half.
Analyst Insight
According to Procurement Resource, calcium sulfite prices are expected to hold a stable-to-firm footing through the remainder of 2026, with sulfur feedstock costs and the seasonal cadence of FGD and industrial demand the primary forces shaping the trajectory. Buyers are expected to retain a cautious, requirement-led approach, leaving the market range-bound barring a shift in energy costs or environmental policy.
Related Report
Need Latest Calcium Sulfite Prices?
Get real-time price assessments, periodic trends, forecasts and price driver insights across key global markets.
Our Clients
Turn price intelligence into action with the Procurement Resource Database. Log in or subscribe to unlock live price trends, historical charts, supplier databases, cost curves, and analyst-backed insights across chemicals, agriculture, energy, packaging, and more. Use these tools to benchmark your contracts, plan budgets with confidence, and stay ahead of market moves on every product you buy.
0
+Products
0
+Regions
0
+Subscriptions
Asia
Calcium sulfite prices in Asia recorded a slight increase during Q4’25. The demand for the product, particularly for the power generation and industrial sectors remained steady, mainly for flue gas desulfurization (FGD) applications. The supply remained tight, mainly because of the availability of gypsum and other calcium-based raw materials. Producers maintained normal operating schedules, but some stockpiles were drawn down faster than usual as companies prepared for local holidays and winter demand. Overall, the Asian market reflected balanced trading, with cautious purchases and modest upward price movement.
Europe
The European market experienced a slight increase in the prices of calcium sulfite during Q4’25. The prices of sulfur were increasing, which affected the production of calcium sulfite. The prices of calcium sulfite slightly moved upwards as some of the manufacturers were cautious while selling the product. The demand for calcium sulfite from power plants, industrial scrubbers, and fertilizer plants was steady, although not high enough to increase the prices of the product. The export of calcium sulfite was moderate.
North America
In North America, the prices of calcium sulfite were stable throughout Q4’25. Demand for the material from energy plants using FGD systems and other industries was consistent. Domestic supply was able to meet the majority of the demand, which kept the prices stable. Although fluctuations were experienced due to energy costs, the majority of the buyers purchased the material based on their immediate needs rather than bulk purchases. The market was stable throughout the period, with a slight increase at the beginning of the fourth quarter.
Calcium sulfite has a sulfurous odor and high solubility in water with a yellowish color. The compound finds applications in a variety of industrial processes, such as water treatment, food industry, and gas scrubbing sectors. It has the ability to act as a reducing agent antioxidant and also helps in controlling sulfur dioxide emissions.
CaSO3
Water treatment, Food and beverage industry, Photography, Gas scrubbing, Paper production, Preservatives
Espicorp Inc, Hydrite Chemical Co , Surepure Chemetals Inc, ICC Industries Inc, American Elements, Adity Birla Chemicals, GFS Chemicals Inc, NOAH Technologies Corporation
CurrencyUS$ (Data can also be provided in local currency)
Supplier Database AvailabilityYes
Customization ScopeThe report can be customized as per the requirements of the customer
Post-Sale Analyst Support360-degree analyst support after report delivery
Note: Our supplier search experts can assist your procurement teams in compiling and validating a list of suppliers indicating they have products, services, and capabilities that meet your company's needs.
This process involves scrubbing of flue gas obtained from coal with limestone. Limestone or hydrated lime acts as a source of calcium while flue gas provides sulfur dioxide, and thus, on reaction, they give calcium sulfite as the main product.
Our Price Analysis Methodology
Senior Business Insights Analyst
Delivering price trend analysis and procurement market insights at Procurement Resource, with expertise in identifying commodity patterns, supporting purchasing strategies, and improving cost efficiency through actionable market intelligence.
Experience how Procurement Resource transforms raw material price data into clear, decision ready intelligence. Optimise your performance with reliable, expert market data and analysis. Schedule your demo today to experience a live walk-through where our experts will showcase interactive price charts, forecasted prices, and insights driving the prices for your key commodities, tailored to your workflows. Contact us now!
Our Team will be happy to assist you
We are just a text away
Still Need Help?
Europe & Africa
+44 7573 171117
Sales@procurementresource.com
USA & Canada
+1 307 363 1045
Sales@procurementresource.com
APAC
+91 8850629517
Sales@procurementresource.com
Unlock full access to Procurement Resource's price databases, interactive charts, and short-term forecasts for thousands of commodities. Elevate your sourcing decisions by comparing prices across regions, downloading historical data, and layering in analyst-backed insights, all with our flexible plans that scale as your portfolio grows.
Still have any Questions
Contact Us
Price Trend Dashboard - What's Included
Price trends across a diverse portfolio of categories and products, spanning board to niche chemicals
Coverage extendable to grade-specific chemicals based on procurement requirements
Regular price tracking supported by robust historical datasets
News, policy updates, and key market drivers impacting price movements
Short-term and long-term price outlooks and forecasts
Supply–demand dynamics and capacity-driven market analysis
Track prices, market movements, supply-demand dynamics, and industry developments across hundreds of commodities through a centralized intelligence platform built for informed procurement decisions.
Understand market fluctuations using analyst-backed forecasts, historical pricing patterns, and evolving industry trends to strengthen sourcing strategies and budget planning.
Leverage cost models, pricing benchmarks, and procurement insights to evaluate purchasing opportunities, improve negotiations, and enhance operational efficiency.
Access region-specific price trends, trade activities, capacity changes, and supply chain developments influencing commodity markets worldwide.
