Product FAQ
Company FAQ
Trade FAQ


Where does your company locate?

Richase China office is loacated at Liaoning province, China, as the magnesite mine place of origin, supply China’s more than 80% magnesium product of all over the world, Richase magnesium oxide factory is located at Dashiqiao city, the city of magnesite, and near Dalian port, have the best geographical advantage.

When your company founded?

As magnesium sulphate and magnesium oxide manufacturer, Richase has in this field for more than 12 years from 2007 to now.

How many workers do you have?

Richase has 100+ workers at our magnesium sulphate and magnesium oxide factory, a professional sales team including 15 people, and other positions like accountant, operate and after sale service people ETC 8 people.

Do you have Ammonium Chloride?

Do you have Ammonium Chloride?Yes,we have. We have Ammonium Chloride Powder and Ammonium Chloride Granular.Ammonium Chloride is widely used in Agricultural and Technical.

How to store Magnesium Oxide?

How to store Magnesium Oxide?Magnesium Oxide should be stored in a cool, dry placeMagnesium Oxide is stable at normal temperatures and pressures. However, it forms magnesium hydroxide in the presence of water. Magnesium oxide is hygroscopic and rapidly absorbs water and carbon dioxide on exposure to the air, the light form more readily than the heavy form.The bulk material should be stored in an airtight container in a cool, dry place.

Can you produce colored magnesium sulphate monohydrate granular?

Yes, We can produce blue, pink, yellow and green colored granular for magnesium sulphate monohydrate.

Do you have Ammonium Chloride?

Do you have Ammonium Chloride?Yes, we have Ammonium Chloride powder & Granular for both industry and agriculture.

What trade terms do you do?

What trade terms do you do?We do FOB CIF CFR mostly, others can be negotiated.

How do you control the Zinc sulphate quality?

We have professional QC and keep every order's sample for two years,thus also support the third party test like SGS,BV et.

Can I visit you company?

Can I visit you company?Yes, sure. Welcome to visit our company to know more about us.

How to prevent magnesium sulfate from clumping?

(1)Double layers bag will be used to protect product from moisture. (2)Faster ship will be chosen to shorten the time on sea. (3)The buyer should keep cargo in dry and unless circumstance.

Do you have Calcium Ammonium Nitrate?

Do you have Calcium Ammonium Nitrate?Yes, we have Calcium Ammonium Nitrate Granular. Please check below picture for your reference.

Do you have Manganese Sulphate?

Do you have Manganese Sulphate?Yes, we have Manganese Sulphate Powder & Manganese Sulphate Granular.

What is the minium order ?

Usually 1 container, MOQ will also according to the product you want. Please feel free to contact with us about minium quantity and quotation.