𝐏𝐫𝐢𝐜𝐞 𝐖𝐚𝐭𝐜𝐡™ provides price assessments for Caustic Potash (Potassium Hydroxide) across top trading regions:
Asia-Pacsific
- Caustic Potash (Potassium Hydroxide) Flakes (90%) Industrial Grade FOB Qingdao, China
- Caustic Potash (Potassium Hydroxide) Flakes (90%) Industrial Grade FOB Busan, South Korea
- Caustic Potash (Potassium Hydroxide) Flakes (90%) Industrial Grade CIF Port Kelang (South Korea), Malaysia
- Caustic Potash (Potassium Hydroxide) Flakes (90%) CIF Yokohama (South Korea), Japan
- Caustic Potash (Potassium Hydroxide) Flakes (90%) CIF Nhava Seva (South Korea), India
- Caustic Potash (Potassium Hydroxide) Flakes (90%) Ex-Ahmedabad, India
Europe
- Caustic Potash (Potassium Hydroxide) Flakes 90% Industrial Grade CIF Immingham (South Korea), United Kingdom
- Caustic Potash (Potassium Hydroxide) Flakes 90% Industrial Grade CIF Barcelona (South Korea), Spain
South America
- Caustic Potash (Potassium Hydroxide) Flakes (90%) Industrial Grade CIF Santos (South Korea), Brazil
- Caustic Potash (Potassium Hydroxide) Flakes (90%) Industrial Grade CIF Santos (China), Brazil
Note: In assessments structured as CIF [Importing Port] (Exporting Country), the country mentioned in brackets indicates the primary origin of supply (exporting country), while the named port refers to the destination port in the importing country. Other Incoterms (FOB, FD, EXW, etc.) should be interpreted in accordance with standard international trade definitions.
Caustic Potash (Potassium Hydroxide) Price Trend Q4 2025
The global market for Caustic Potash (Potassium Hydroxide) showed mixed price trends in Q4 2025, ranging from a 6% price decline to a 5% increase across major trading regions. Prices for Caustic Potash have also adjusted slightly in both China and South Korea because of balanced levels of production; however, there have been quarterly increases reported in India, again due to strong domestic demand combined with limited supply. Notable price increases occurred in the import markets of the United Kingdom and Spain with moderate adjustments noted in Malaysia, Japan, and Brazil. The year-end market dynamics of Caustic Potash resulted from restocking activity with overall improved demand sentiment being present across most of the Caustic Potash markets.
China: Caustic Potash (Potassium Hydroxide) Export Prices FOB Qingdao, China, Grade- Industrial Flakes (90%)
In Q4 2025, Caustic Potash prices in China demonstrated relative stability with minimal quarterly movement reflecting balanced domestic and export market conditions. Caustic Potash price in China for Flakes Industrial Grade material FOB Qingdao ranged between USD 910-955 per metric ton, posting a modest 1.86% quarterly decline. The Caustic Potash price trend in China has been influenced by steady production output, moderate inventory levels, and consistent export demand from Asian and South American markets across fertilizer, chemical processing, and industrial applications. In December 2025, Caustic Potash prices in China increased by 3.74%, driven by year-end restocking activities, improved buyer sentiment, and strategic procurement by international importers and Chinese manufacturers maintained operational discipline with production rates aligned to market requirements, supporting relatively steady pricing dynamics throughout the quarter.
South Korea: Caustic Potash (Potassium Hydroxide) Export Prices FOB Busan, South Korea, Grade-Industrial Flakes (90%)
In Q4 2025, Caustic Potash prices in South Korea experienced moderate downward adjustment amid balanced regional supply-demand fundamentals and competitive export dynamics. Caustic Potash price in South Korea for Flakes Industrial Grade material FOB Busan ranged between USD 735-780 per metric ton, recording a 3.56% quarterly decline. The Caustic Potash price trend in South Korea has been shaped by steady domestic production, measured inventory management, and consistent export flows to European and Asian destinations serving pharmaceutical, chemical, and agricultural sectors. In December 2025, Caustic Potash prices in South Korea increased by 1.41%, influenced by year-end procurement strategies, improved regional demand sentiment, and inventory optimization among exporters. South Korean producers maintained competitive positioning through operational efficiency and strategic market engagement throughout the quarter.
India: Caustic Potash (Potassium Hydroxide) Domestically Traded Prices Ex- Ahmedabad, India, Grade -Industrial Flakes (90%)
In Q4 2025, Caustic Potash prices in India emerged as a notable outlier recording quarterly gains amid robust domestic demand and limited supply availability. Caustic Potash price in India for Flakes Industrial Grade material Ex-Ahmedabad ranged between USD 880-920 per metric ton, experiencing a 5.24% quarterly increase. The Caustic Potash price trend in India has been driven by strong consumption from pharmaceutical, fertilizer, and chemical processing industries, constrained domestic production capacity, and elevated import dependencies creating upward price pressures. In December 2025, Caustic Potash prices in India increased by 1.82%, supported by sustained industrial demand, year-end restocking activities, and tight supply conditions. Indian market participants faced supply challenges throughout the quarter, necessitating strategic procurement from international sources and supporting elevated domestic pricing structures.
United Kingdom: Caustic Potash (Potassium Hydroxide) Imported Prices CIF Immingham from South Korea, UK, Grade- Industrial Flakes (90%)
In Q4 2025, Caustic Potash prices in United Kingdom experienced substantial downward movement driven by competitive South Korean import dynamics and favorable freight conditions. Caustic Potash price in UK for Flakes Industrial Grade material CIF Immingham sourced from South Korea ranged between USD 840-880 per metric ton, recording a 6.36% quarterly decline. The Caustic Potash price trend in UK has been heavily influenced by ample South Korean export availability, downward freight impact between South Korean ports and Immingham substantially supporting competitive CIF prices and amplifying FOB price reductions, and moderate domestic demand from chemical processing and pharmaceutical industries. However, in December 2025, Caustic Potash prices United Kingdom increased by 1.24%, driven by year-end procurement optimization and improved demand sentiment.
Spain: Caustic Potash (Potassium Hydroxide) Imported Prices CIF Barcelona from South Korea, Spain, Grade- Industrial Flakes (90%)
In Q4 2025, Caustic Potash prices in Spain experienced considerable quarterly decline reflecting competitive South Korean import dynamics and beneficial freight conditions. Caustic Potash price in Spain for Flakes Industrial Grade material CIF Barcelona sourced from South Korea ranged between USD 810-900 per metric ton, posting a 5.06% quarterly decrease. The Caustic Potash price trend in Spain has been shaped by abundant South Korean export availability, downward freight impact between South Korean ports and Barcelona supporting competitive CIF prices, and steady consumption from chemical processing and agricultural sectors across the Iberian Peninsula. In December 2025, Caustic Potash prices in Spain increased by 4.32%, influenced by year-end restocking activities, improved regional demand, and inventory positioning among Spanish importers.
Malaysia: Caustic Potash (Potassium Hydroxide) Imported Prices CIF Port Klang from South Korea, Malaysia, Grade- Industrial Flakes (90%)
The price trend of Caustic Potash in Malaysia during 4th Quarter 2025 saw minor fluctuations from prior quarters. This is due to two primary factors; first, balanced import dynamics between South Korea and Malaysia, and second, excellent freight rates between the two countries. The Caustic Potash price in Malaysia for Industrial Grade Caustic Potash (Flakes) sourced from South Korea delivered to Port Klang CIF (cost insurance freight) has been between 825 – 865 (USD) per metric ton, representing a decline of 3.48% from 3rd Quarter of 2025. The factors contributing to the trend of Caustic Potash prices in Malaysia included; stable export availability from South Korea, downward freight impact between South Korea and Malaysia supporting competitive prices of liquid caustic delivered to Port Klang, and continued steady demand for caustic potash product from the chemical processing, electronics, and agricultural industries in Southeast Asia. In December 2025, the price of Caustic Potash in Malaysia increased 1.27% as a result of Y/E purchasing programs and an increase in industrial activity.
Japan: Caustic Potash (Potassium Hydroxide) Imported Prices CIF Yokohama from South Korea, Japan, Grade- Industrial Flakes (90%)
In Q4 2025, Caustic Potash prices in Japan experienced moderate downward movement reflecting competitive South Korean import dynamics and beneficial freight conditions. Caustic Potash price in Japan for Flakes Industrial Grade material CIF Yokohama sourced from South Korea ranged between USD 765-805 per metric ton, posting a 3.81% quarterly decline. The Caustic Potash price trend in Japan has been shaped by ample South Korean export availability, downward freight impact between South Korean ports and Yokohama supporting competitive CIF prices, and steady consumption from pharmaceutical, chemical, and electronics manufacturing sectors. In December 2025, Caustic Potash prices in Japan increased by 1.39%, influenced by year-end industrial restocking, improved manufacturing activity, and inventory optimization among Japanese importers.
Brazil: Caustic Potash (Potassium Hydroxide) Imported Prices CIF Santos from South Korea, Brazil, Grade- Industrial Flakes (90%)
In Q4 2025, Caustic Potash prices in Brazil demonstrated moderate quarterly adjustment reflecting competitive Chinese import dynamics. Caustic Potash price in Brazil for Flakes Industrial Grade material CIF Santos sourced from China ranged between USD 995-1040 per metric ton, recording a 3.29% quarterly decline. The Caustic Potash price trend in Brazil has been influenced by steady Chinese export availability, downward freight impact between Chinese ports and Santos supporting competitive CIF prices, and consistent demand from agricultural, chemical processing, and pharmaceutical industries across Latin America. In December 2025, Caustic Potash prices in Brazil increased by 3.24%, driven by year-end agricultural sector restocking, improved industrial demand, and procurement optimization among Brazilian importers.






