New SUL4R-PLUS Plant Opens in Marissa, IL
April 24, 2025 Economic and agronomic benefits were on display at the recent SUL4R-PLUS plant opening in Marissa, IL. The new plant, located on the former Quad County Ready Mix concrete plant near the Prairie State power plant, will bring innovative fertilizer products to growers in southern Illinois and the surrounding region.
“We are proud to be a part of this community and provide customers with a unique fertilizer product that delivers high-quality sulfur and calcium in a single granule,” says Terry Gill, SUL4R-PLUS president and CEO. “Farmers are all too familiar with the need to grow more on every acre, and SUL4R-PLUS has a proven record of supporting crop growth and yields.”
SUL4R-PLUS is a patented, dust-free, low-salt, calcium-sulfate fertilizer manufactured from by-products from coal-fired power plants. The fertilizer is a slow-release, granular product that can be the primary source of secondary nutrients for farmers looking to maximize crop performance. Field trials have demonstrated that the combination of sulfur, calcium and fulvic acid is not only improving nutrient use efficiency and soil health, but also yields in crops such as soybeans, corn, small grains, alfalfa, forages, fruits or vegetables.
“Our commitment to innovation is somewhat unique in the fertilizer industry, but we believe new developments in crop nutrition can help support the need for farmers to produce more,” says Gill. “It’s important that farmers have cutting-edge crop nutrition products to match the innovation in their seed and crop protection products. Farmers who have used SUL4R-PLUS are seeing the crop yield and environmental benefits, and it has led to strong demand.”
The Marissa plant will increase production to meet growing demand, which is supported by the recent partnership with HELM as the North America distributor for SUL4R-PLUS. The new location has created 25 new jobs in St. Clair County and will increase production volume by 100,000 tons of product annually. This additional capacity will improve over 2 million crop acres.
“Our team is committed to bringing innovative solutions to ag retailers and their growers as they look to increase crop production and nutrition,” adds Gill. “This new location is one physical example of our dedication to the future of agriculture here in the heartland.”
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