Inorganic Products

JMC is a leading manufacturer of sulfur-based acids and salts. We derive these products as part of our saccharin manufacturing process which means that we use the same, high standard facilities and processes across our entire product range. JMC has a long-term record of manufacturing and supplying materials safely without accidents, injuries or transportation incidents. We use purpose-built transportation vehicles to deliver materials within Korea and have extensive experience with shipping overseas using ISO accredited containers.

Potassium Sulfate (SOP)

Sulfate of potash, or potassium sulfate (K2SO4), is widely used as an agricultural fertilizer. Potassium is an essential element for plants that assists in enzymatic reactions, water flow in cells and in the production of starch, sugars and proteins. The addition of potassium and sulfur to soils that are deficient in these elements can significantly improve crop growth. The use of potassium sulfate avoids adding further chloride salts to soils that may already have high levels of chloride. Potassium sulfate is widely used in the production of high value fruits such as bananas and pineapples.

JMC uses the Mannheim Process, which is the reaction of potassium chloride (KCl) and sulfuric acid (H2SO4), to produce potassium sulfate. JMC produces our own sulfuric acid directly from elemental sulfur and we source the highest quality potassium chloride. JMC has been producing potassium sulfate since 1984 and our annual production volume is approximately 30,000 tons.

JMC can supply potassium sulfate in a variety of packaging types and sizes and we supply to customers all around the world.

Chlorosulfonic Acid

Chlorosulfonic acid is a widely used industrial chemical with applications in detergents, ion exchange resins, dyes, electronic materials and as an intermediate for the manufacture  of pharmaceutical ingredients. JMC has been using a completely vertically integrated process to produce chlorosulfonic acid since 1953. Beginning with elemental sulfur, we manufacture sulfuric acid and then chlorosulfonic acid. This means that JMC has complete control over our supply chain allowing us to reliably deliver high quality material.

Hydrochloric Acid

JMC produces hydrochloric acid from the direct reaction of sulfuric acid with potassium chloride. This is distinct from the electrolytic method used by many other manufacturers. 

We source the highest quality potassium chloride from Canada and produce the sulfuric acid ourselves directly from elemental sulfur. The direct reaction gives highly pure hydrochloric acid that we use in our own processes and can provide safely and reliably to our customers.

Sodium Bisulfite 

Sodium bisulfite is used as an agent in applications such as chromium waste water treatment. JMC produces sodium bisulfite from the reaction of sulfur dioxide and sodium hydroxide. We produce the sulfur dioxide directly from elemental sulfur therefore guaranteeing a continuous and reliable supply of the sodium bisulfite.

JMC’s sodium bisulfite is supplied as a 23% solution in water which can enable cost savings and process improvements when compared with supply as a solid material.

Product Structural Formula CAS Number Downloads
Potassium Sulfate (SOP)
K2SO4 7778-80-5 Specification Sheets
Potassium Sulfate (SOP)
K2SO4 7778-80-5 Specification Sheets
Chlorosulfonic Acid HSO3Cl 7790-94-5 Specification Sheets
Hydrochloric Acid HCl 7647-01-0 Specification Sheets
Sodium Bisulfite NaHSO3 7631-90-5 Specification Sheets