TKI About Us

About Tessenderlo Kerley, Inc.

The story of Tessenderlo Kerley, bringing sulfur to life.
The story of Tessenderlo Kerley, Inc.
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    Who We Are

    Our Mission & Values

    Tessenderlo Kerley, Inc. serves the agriculture, mining and industrial markets with a broad range of products and technologies around the world.  We have one mission, to nurture and enhance life through innovative chemistry. We focus on delivering sustainable products and services which make the most efficient use of every resource. Our people make the difference, keeping our 7 core values at the center of our activities.

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    Safe and Sustainable Business

    Whether we’re extracting sulfur from waste gasses at oil refineries to produce sulfur-based liquid fertilizers, eliminating the use of cyanide in precious metals mining or providing on-site wastewater reclamation services, Tessenderlo Kerley has a long track record of environmental stewardship, safety and sustainable business practices.

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    Continually Growing

    Today’s Tessenderlo Kerley is the continually growing organization that was founded as The Kerley Chemical Company more than 70 years ago. Over the years, the company has branched into areas beyond agriculture into the mining, process chemical and crop protection industries.

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    Research and Development

    Expertise and Insights

    Tessenderlo Kerley's R&D Team members have expertise in organic synthesis, metallurgy and hydrometallurgy, waste stream remediation and a variety of fumigants, including metam sodium and related compounds. Their work and insights are the foundation for creating new products, services and patents.

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    Global Presence

    International in Scope

    The Tessenderlo Kerley Team, comprised of 450+ motivated and skilled experts, is headquartered in Phoenix, Arizona and has 13 U.S. production facilities spread across the united states. Our products are used in more than 40 countries, including: Canada, Central America, South America, Australia, Europe and Asia.

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    Tessenderlo Group

    A Worldwide Company

    In 1995 the company was acquired by Tessenderlo Group, a publicly traded company based in Brussels, Belgium. Tessenderlo Group specializes in food, agriculture, water management and on valorizing bio-residuals.