Big Quill Resources is Canada's largest producer of potassium sulfate, also known as sulfate of potash or SOP. Our wide range of high quality SOP products has many different uses, including in drywall production, for abrasive blasting and in the pharmaceutical and food industries. When used as a specialty fertilizer, SOP provides essential nutrients, making it vital for high-value crops such as vegetables, fruits, nuts, turf grass and horticulture.
Growers of high-value crops depend on SOP from Big Quill Resources to provide the important nutrition their crops need.
Our high-purity SOP is a key product used in a wide range of applications.
