Feed amino acid additives — lysine, methionine, threonine, tryptophan — are essential amino acids for balancing the diets of farm animals and poultry. A deficiency of even one limiting amino acid reduces feed conversion and weight gain. Lysine is the first limiting amino acid for pigs. Methionine is the first limiting for poultry. Threonine is the second-third limiting for both species. Release form: L-lysine sulfate (65%), L-lysine monohydrochloride (98.5%), DL-methionine (99%), L-threonine (98.5%). Packaging: 25 kg bags, big bags. Lysine: the first limiting amino acid for pigs — deficiency reduces average daily gain by 15–25%. L-lysine sulfate 65% — granulated, for introduction via feed mixers. L-lysine monohydrochloride 98.5% — crystalline, for precise dosing in premium-class compound feeds. Methionine: the first limiting for broilers and layers. DL-methionine 99% — synthetic, white crystalline powder with a characteristic odor. Alternative: MHA (methionine hydroxy analogue, liquid, 84% active substance). Threonine: the second-third limiting. Deficiency reduces immunity and worsens feather quality in poultry. L-threonine 98.5% — crystalline powder. Dosages: lysine 2–5 kg/t of compound feed, methionine 1–3 kg/t, threonine 0.5–2 kg/t (depending on formulation and raw material base). Storage: dry warehouses, temperature ≤25°C, protection from moisture. Shelf life 24 months. Export documentation: quality certificate, certificate of conformity, feed additive 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).