Feed amino acid additives — lysine, methionine, threonine, tryptophan — are essential amino acids for balancing the diets of farm animals and poultry. A deficiency in even one limiting amino acid decreases feed conversion and mass gain. Lysine is the first limiting amino acid for pigs. Methionine is the first limiting amino acid for poultry. Threonine is the second to third limiting amino acid for both species. Forms of release: 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 the average daily weight gain by 15–25%. L-lysine sulfate 65% — granulated, for input through 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 analog, liquid, 84% active substance). Threonine: second to third limiting. Deficiency reduces immunity and worsens feather quality in poultry. L-threonine 98.5% — crystalline powder. Dosages: lysine 2–5 kg/ton of compound feed, methionine 1–3 kg/ton, threonine 0.5–2 kg/ton (depending on formulation and raw material base). Storage: dry warehouses, temperature ≤25°C, protection from moisture. Shelf life 24 months. Export documentation: quality passport, certificate of conformity, registration certificate of feed additive. Storage: dry ventilated warehouses, control of temperature and humidity. The product undergoes incoming quality control on each batch. Testing protocols from accredited laboratories. Shipment: by road transport, rail wagons, 20/40-foot containers. Minimum batch is individually agreed. Export deliveries to EAEU countries, China, the Middle East, Africa, Southeast Asia. Flexible payment terms: prepayment, letter of credit, CAD (documents against payment).