SOP Price Trends

Procurement Resource provides latest prices of SOP. Each price database is tied to a user-friendly graphing tool dating back to 2014, which provides a range of functionalities: configuration of price series over user defined time period; comparison of product movements across countries; customisation of price currencies and unit; extraction of price data as excel files to be used offline.

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Chart Description

Procurement Resource provides prices of SOP for several regions around the globe, which are as follows:

  • North America
  • South America
  • Europe
  • Asia Pacific
  • Middle East
  • Africa

About SOP

SOP refers to Sulphate of Potash which is a mixture of both potash and sulfur. The general composition for Sulphate of Potash involves 51% soluble potash and about 18% sulfur. It also includes traces of metals like calcium and magnesium. SOP is majorly used as a fertilizer and acts as an excellent source of potassium and sulfur nutrients. It is a low-chloride type of a fertilizer that aids the plants to resist diseases and pests.

Chemical Formula:

  • K2SO4


  • Sulphate of Potash
  • Potassium Sulphate

Molecular Weight:    

  • 174.259 g/mol

Industrial Uses

  • Fertilisers
  • Glass manufacturing
  • Mining
  • Propellant

Production Processes

  • Production of SOP by Decantation process

SOP is produced by Decantation process where Langbeinite is treated with a concentrated solution of Potassium chloride which results in the precipitation of potassium sulphate. The precipitated potassium sulphate is then separated by decantation. SOP can also be prepared by Mannheim Process.

Supplier Database

  • Agrico Canada L.P.
  • Ameropa Australia Pty Ltd
  • Archean Group
  • AG CHEMI GROUP s.r.o.
  • AgroLiquid
  • ArrMaz Gulf Chemicals, Ltd.

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The displayed pricing data is derived through weighted average purchase price, including contract and spot transactions at the specified locations unless otherwise stated. The information provided comes from the compilation and processing of commercial data officially reported for each nation (i.e. government agencies, external trade bodies, and industry publications).