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Calcium Product 98G


Calcium Products Celebrates 30 Years

Golf Outing

Calcium Products is celebrating 30 years in business this summer! This milestone leads us to look back on our history with gratefulness, while strengthening our focus on the future.

We want to thank you, our customers, for your business and loyalty throughout the last 30 years. Whether you’ve worked with us for one year or all 30, we genuinely appreciate your support of Calcium Products.

Without our employees, none of our success would be possible. We want to thank and acknowledge them for all their hard work over the years. We are fortunate to have a team that is talented and dedicated to creating a positive customer experience. In June, we hosted an all company golf outing to celebrate our 30 years. (Photo above.)

As we look to the future, we’re committed to creating high-quality products that assist in progressive farming and turfgrass management practices, as well as building long-term relationships with our customers. We currently have plans in place to grow our sales team and add additional production capacity to support our future sales growth. We believe this combination will deliver success for Calcium Products and our customers throughout the next 30 years.


Greg Walstrom : Gilmore City Plant Manager

Greg has over 10 years’ experience at Calcium Products. Starting in the fine grind plant in 2003,  he quickly learned all aspects of the Gilmore City operations. Greg assisted in the 2007 expansion of the Gilmore City pellet plant. In 2010 he was promoted to night shift supervisor and lead the night shift build team for the 2013 Fort Dodge expansion.  Greg’s competency in plant maintenance, fabrication and dedication to process improvements and plant efficiency is a key component to the success of the Gilmore City operations. Greg resides on an acreage with his wife and 3 kids and enjoys his free time camping with his family.



John Krueger, Territory Sales Manager | S. Illinois & Missouri

John started with Calcium Products in 2014 and is responsible for the company’s sales in southern Illinois and Missouri. John has a wide array of experiences in ag sales and operations. He joined Calcium Products after working for various agriculture retail businesses selling crop production inputs and crop insurance. John spent the first 29 years of his career with GROWMARK member companies as a crop specialist and sales and marketing manager. He grew up on a dairy farm in southern Wisconsin and graduated with his bachelor’s degree in ag business from the University of Wisconsin-Platteville. He currently lives in Okawville, Illinois.


Jeff Thompson, Vice President of Sales & Marketing

Jeff joined Calcium Products as Vice President of Sales and Marketing in 2015. Prior to Calcium Products, Jeff developed and grew the Iowa sales territory for Specialty Fertilizer Products (SFP), now Verdesian Life Sciences. He spent 10 years at Channel Bio starting as a district sales manager progressing into leadership roles managing all aspects of a sales team – recruiting and coaching people in sales, marketing, customer service and distribution. Jeff started his career at FC Coop, now Landus Cooperative, in Iowa in 1996 as a feed and livestock marketing specialist. Jeff has a bachelor’s degree in agricultural education from Iowa State University and is an active member in his family farm near Winterset, Iowa.

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