Glossary of Terms

Agronomy — A branch of agriculture focusing on field-crop production and soil management.

Brine — A highly concentrated solution of water and salt (in potash mining, brine is specifically a solution of water and potassium chloride). Brine is created when potash is extracted during solution mining. Water inflows in potash mines are frequently in the form of brine and can cause flooding of the mine.

Cargill — Cargill, Incorporated. As of September 20, 2009, Cargill beneficially owned approximately 64.2% of the outstanding common stock of Mosaic.

Cogeneration — The production of electricity using waste heat from an industrial process.

DAP — Diammonium Phosphate ("DAP"). DAP is the most widely used high-analysis phosphate crop nutrient worldwide. DAP is produced by combining phosphoric acid with anhydrous ammonia. DAP is a solid granular product.

Distribution — Refers to Mosaic's network of port terminals, warehouses and blending plants around the globe that are the distribution centers for providing crop nutrients to farmers.

EH&S — Environmental, Health & Safety.

GHG (greenhouse gases) — Greenhouse gases include carbon dioxide, methane, nitrous oxide, sulfur hexafluoride, hydrofluorocarbons emitted from a chemical manufacturing process at an industrial stationary source, perfluorocarbon and nitrogen trifluoride.

Gigajoule — The joule (J) is a unit for measuring energy. A gigajoule is one billion (109) joules.

Gypsum — See "phosphogypsum".

IMC — IMC Global Inc. Prior to the 2004 business combination in which Mosaic was formed, the common stock of IMC was publicly traded on The New York Stock Exchange.

K-Mag® — K-Mag is a premium three-in-one combination fertilizer product containing sulfur, potassium and magnesium, with low levels of chloride.

MAP — Monoammonium Phosphate ("MAP"). MAP is the second most widely used high-analysis phosphate crop nutrient and the fastest growing phosphate product worldwide. MAP is produced by first combining phosphoric acid with anhydrous ammonia. The resulting slurry is then pumped to a granulation plant where it is reacted with additional phosphoric acid to produce MAP. MAP is a solid granular product.

MicroEssentials® — MicroEssentials® is a value-added ammoniated phosphate product that is enhanced through a patented process that creates very thin platelets of sulfur and other micronutrients, such as sulfur and zinc, on the granulated product. The patented process incorporates both the sulfate and elemental forms of sulfur, providing season-long availability to crops.

MOP — See "muriate of potash".

Mosaic — The Mosaic Company. Mosaic is a Delaware corporation that was incorporated in January 2004 to serve as the parent company of the business that was formed through the October 22, 2004 business combination of IMC and the fertilizer businesses of Cargill.

MSHA — United States Mine Safety & Health Administration.

Muriate of Potash — ("MOP") Potassium Chloride. The primary source of potassium for the crop nutrient industry.

Offshore — Our Offshore segment produces and/or markets phosphate-, potash- and nitrogen-based crop nutrients and animal feed ingredients to countries outside of the U.S. and Canada.

OSHA — United States Occupational Safety & Health Administration.

Panamax — Panamax ships are the largest ships that can pass through the Panama Canal. They can carry anywhere from 50,000 to 60,000 metric tons of product.

Phosphate — An inorganic chemical, phosphate is a salt of phosphoric acid. Inorganic phosphates are mined to obtain phosphorus for use in agriculture and industry.

Phosphates — Refers to the Mosaic business segment that produces and sells phosphate crop nutrients and animal feed ingredients.

Phosphogypsum — Processing of phosphate rock with sulfuric acid allows the nutrient phosphorus to transition from an insoluble state to a soluble state to be available for plant uptake. A byproduct of this processing step is calcium sulfate, which is phosphogypsum.

Potash — A naturally occurring mineral that is also referred to as Muriate of Potash (MOP) or Potassium Chloride (KCl), and is the most widely used potassium fertilizer. May also refer to the Mosaic business segment that mines and sells potash.

SaMZ — Satellite Derived Management Zones. Management zones are areas of a field that possess similar characteristics that may require varying degrees of management, including fertilizer applications. Management zones can be identified using yield maps, aerial photography, satellite imagery or various measured soil parameters.

Tonne — A metric ton equal to 2,205 pounds or 1,000 kilograms.

Ton — A short ton equal to 2,000 pounds. An English unit of weight.

VRN – Variable Rate Nutrient. InSite VRN is a Mosaic program that offers a simple, inexpensive method for identifying what the ideal nutrient rate should be for each individual area of a field.