Tessenderlo Kerley
Nurturing and Enhancing Life

Tessenderlo Kerley

We believe through innovation we can expand the possibilities for farmers, consumers, and the earth.

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multi-crop
Different crops require different nutrients

Crops

Dive into our crop insights library, built to help growers understand their fields, optimize nutrition, and drive better results season after season.

Crop Insights

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Tessenderlo Kerley

Crop Nutrition

Producer of sulfur-based specialty fertilizers for agriculture.

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Citrus orchard
Tessenderlo Kerley

Crop Protection

We supply a portfolio of pesticides and solar protectants for niche uses in agriculture worldwide.

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Water treatment, fabrication, and mining
Tessenderlo Kerley

Industrial

Sulfur chemistry, manufacturing, and fabrication expertise supporting diverse industrial markets. Specializing in sulfur recovery and delivering safe, efficient solutions across mining, oil & gas and water treatments.

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Latest News

  • Hanford Plant's Thio-Sul and KTS Storage Tanks

    Tessenderlo Kerley’s Hanford Facility Achieves Cal/OSHA VPP STAR Recognition for Safety Excellence
    Thursday, April 30, 2026
    Phoenix, AZ – Tessenderlo Kerley, a leader in crop nutrition, crop protection, and industrial chemistry solutions, today announced that its Hanford, California manufacturing facility has earned Cal/OSHA Voluntary Protection Program (VPP) STAR status, the agency’s highest recognition for workplace safety and health performance. This prestigious...

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  • Union Pacific Train

    Tessenderlo Kerley Recognized with Union Pacific’s 2025 Pinnacle Award for Rail Safety Excellence
    Monday, April 27, 2026
    Phoenix, AZ — Tessenderlo Kerley Inc., a leader in crop nutrition and industrial chemical solutions, has been recognized by Union Pacific Railroad with the 2025 Pinnacle Award, honoring the company’s commitment to the safe transportation of chemicals by rail. Union Pacific presented the Pinnacle Award to 138 companies that demonstrate industry...

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  • Alfalfa

    New Herbicide for Alfalfa Growers
    Tuesday, April 14, 2026
    Phoenix, AZ – A new herbicide option for alfalfa growers is available for the 2026 growing season. Linex® herbicide, a long-standing option in weed management programs, has received a label update that expands its approved use to include alfalfa for dormant periods and between cuttings. This use expansion offers additional flexibility to growers...

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