In 2025, the global market for potassium sulfite was under upward pressure throughout the year. In Asia, the market commenced the year on a strong note due to an uptrend in raw material costs, including potassium chloride and sulfur-based materials. At the beginning of the year, logistical issues due to holidays and preparation for the upcoming agricultural season also caused upward pressure on costs, resulting in an upward push in prices. During the second quarter of the year, costs continued to support the market, though demand was moderate and manufacturers were cautious in managing inventory levels.
During the third quarter, prices were stable due to an uptrend in demand, though supply was balanced due to cautious buying. During the fourth quarter, strong agricultural demand and low local production in major countries pushed up prices once again, though market participants were seen to be buying at a steady rate.
In Europe, there was an upward trend in the prices of potassium sulfite in 2025. This was due to an increase in feedstock costs and stable agricultural demand. There were minor production issues and import arrivals, but they were enough to meet demand.
In North America, there was firm pricing in 2025 due to production constraints and import dependency. Agricultural demand and policy changes were also factors in the moderate upward movement in prices. However, there was caution on the part of buyers in overstocking due to high prices.
Analyst Insight
According to Procurement Resource, Potassium Sulfite prices are likely to be sustained in the near term due to agricultural demand and cost factors but may stabilize if supply improves.
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During the second half of 2024, the global potassium sulfite market faced a general increase in prices. In the Asian region, prices increased as the cost of raw materials, especially chemicals, increased. The local production of potassium sulfite remained constant, but the limited availability of the material from other countries, as well as the inventory levels of local traders, helped support the prices. The demand for potassium sulfite from the agricultural sector increased, which helped maintain a firm market.
In the European region, the prices of potassium sulfite increased. The cost of raw materials, as well as chemicals, increased, which led to a surge in production costs. The local production of potassium sulfite faced a shortage of raw materials, which led to a surge in prices. The demand for potassium sulfite from the agricultural sector helped maintain a firm market.
North America also saw prices move upward, although more gradually. Supply chain disruptions, including localized production stoppages and external labor strikes, limited availability of raw materials. Seasonal agricultural demand provided consistent support, but buyers remained cautious due to higher prices and uncertainty over future supply.
Potassium sulfite (K2SO3) is a chemical compound widely used in various industries for its antioxidant and preservative properties. It plays a critical role in wine making to prevent oxidation and preserve flavor, while in photography, it helps protect and stabilize images during processing. Additionally, potassium sulfite is utilized in the textile and paper industries as a bleaching agent and in water treatment to remove chlorine. It also serves as a food preservative, helping to maintain color and prevent spoilage.
K2O3S
Wine Making, Photographic Processing, Textile Industry, Water Treatment, Food Preservation, Chemical Manufacturing, Paper Production
BASF, Alfa Chemistry, Apollo Scientific, Advance Scientific & Chemical, City Chemical, 3B Scientific, Nacalai Tesque, Pfaltz & Bauer, Kanto Chemical, Wako Pure Chemical Industries, Energy Chemical, Beijing Ouhe Technology
CurrencyUS$ (Data can also be provided in local currency)
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The preparation of potassium sulfite is initiated by the reactions between sulfurous acid and potassium hydroxide solution. Initially, sulfur dioxide is reacted with water to form sulfurous acid, which serves as the sulfonating agent. Sulfurous acid is further reacted with aqueous potassium hydroxide solution that leads to the sulfonation of potassium hydroxide and produces potassium sulfite as the final product.
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