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  • G.S. Dunn Limited Website
    1 905 522 0833
    80 Park St N, Hamilton, ON L8R 2M9

    G.S. Dunn Limited, founded in 1867, is a leading Canadian manufacturer of premium dry mustard products serving global food markets. Specializing in natural, gluten-free, and halal-certified mustard flour, bran, ground mustard, and seed variants, the company blends yellow, oriental, and brown seeds …