We care about our customers – and their bottom line. That’s why our team is out in the field, talking to customers face-to-face.
Why We're Different
Unmatched Customer Service
We are pleased to make each of our customers feel like the only customer. Plus, our response and shipping times are fast.
We prioritize customer needs and do what we say we’re going to do. And we do it well. It’s this service that keeps our customers coming back – decade after decade.
Both a Sulphur Recovery and Prilling Facility
We actively participate in reducing area-wide emissions of sulphur dioxide, while also producing value-added sulphur products for agriculture and other industries.
Deep History in the Sulfur Industry
We are the longest continually running sulfur recovery plant in North America – and the longest operating producer of bentonite sulfur products for agriculture. And over the years, we made a reputation for ourselves with the “Yellowstone Brand” – a pure, elemental sulfur product that was made into flakes for agronomists to blend and spread.
1980s – 1990’s
Donald “Doc” Zink and his wife Hermine founded Montana Sulphur in 1955. Now, their children make up the board of directors. Their family history with the company strengthens the credibility that comes with the Montana Sulphur name.