Better gardening through chemicals. Through five subsidiaries, Trans-Resources, Inc. (TRI) makes specialty plant nutrients as well as industrial and organic chemicals for businesses worldwide. Through Haifa Chemicals, TRI is the world's largest producer of potassium nitrate, a specialized growth nutrient for produce and tobacco; it controls about half of the world market. Haifa Chemicals also produces other fertilizers and food additives. The unit's products are marketed under the Multi-K and Multicote brands. Other TRI subsidiaries make water-soluble and liquid-starter fertilizers, insecticides, herbicides, horticulture supplies, and irrigation equipment. Chairman Arie Genger and family own the company.