Mineral feed additives are sources of calcium, phosphorus, and trace elements for balanced animal feeding. Deficiencies in calcium and phosphorus lead to rickets, osteomalacia, and reduced egg production. Monocalcium phosphate (MCP) — Ca 16%, P 22.7%. Dicalcium phosphate (DCP) — Ca 23%, P 18%. Tricalcium phosphate (TCP). Feed chalk — CaCO₃, Ca 37%. Limestone flour. Packaging: bags 25–50 kg, big bags. Calcium and phosphorus are macroelements essential for the skeleton, teeth, eggshell formation, muscle contractions, and nerve conductivity. The optimal Ca:P ratio in the diet is 1.5–2:1 for poultry, 1.2–1.5:1 for pigs, 1.5–2.5:1 for cattle. Monocalcium phosphate (MCP): Ca(H₂PO₄)₂ — the most digestible form of phosphorus (bioavailability 90–95%). For poultry and pigs. Granulated — dust-free, non-caking, precise dosing. Dicalcium phosphate (DCP): CaHPO₄ — for cattle and pigs. Phosphorus digestibility 80–85%. 10–15% cheaper than MCP. Feed chalk (CaCO₃): the main source of calcium for laying hens — eggshell formation requires 2.2 g Ca per egg. Large fraction (shell grit 2–5 mm) + fine (flour) = continuous release of Ca in the gastrointestinal tract over 12 hours. Storage: dry warehouses, protection from moisture (hygroscopicity of MCP). Shelf life 12–24 months. Documentation: quality certificate, registration certificate. Storage: dry ventilated warehouses, temperature and humidity control. Products undergo incoming quality control for each batch. Test reports from accredited laboratories. Shipment: road transport, railway wagons, 20/40 ft containers. Minimum order quantity is agreed individually. Export supplies to EAEU countries, China, the Middle East, Africa, Southeast Asia. Flexible payment terms: prepayment, letter of credit, CAD (documents against payment).