Table 9.
Share of global production of bioavailable forms of the main minerals required for SCP ramp up. *Some estimations included price quotes. For a conservative estimate, the most hydrated forms were considered.
| Micronutrient form | Global production (tonne/year) | Amount required (tonne/year) | Share of global production | Source |
|---|---|---|---|---|
| Phosphate | 240,000,000 | 40,300,000 | 17% | (“Phosphate rock mining by country,” 2019) |
| Sulfur | 78,900,000 | 6,900,000 | 9% | (“Sulfur production globally by country,” 2019) |
| Sodium Chloride | 293,000,000 | 15,800,000 | 5% | (Salt Data Sheet - Mineral Commodity Summaries, 2020) |
| Calcium carbonate | 167,800,000 | 14,800,000 | 9% | (Grandview Research, 2019)* |
| Potassium chloride | 45,100,000 | 8,900,000 | 20% | (“Potassium chloride production by country,” 2019) |
| Magnesium sulfate heptahydrate | 7,300,000 | 27,000,000 | 370% | (Fact. MR 2019; Market Research Future, 2019)* |
| Iron sulfate heptahydrate | 8,200,000 | 1,400,000 | 17% | (Reports and Data, 2020)* |