Seeking amino acid-based fertilizers (liquid or powder) to blend with brassinolide and seaweed extract. Please provide: 1. Active content, forms (dry, liquid), stability and shelf life. 2. MOQ and FOB price per ton or liter. 3. Certificates (ISO, GMP, COA). 4. Sample availability for trials. 5. Recommended compatibility with seaweed and brassinolide mixtures.