Rules of origin declaration: exporters must provide detailed product, input origin and costing information for origin determination. The annexure requires exporters or manufacturers to provide identifying information, product-level descriptions with tariff classification and FOB value, and detailed component-level disclosures including quantities, CIF values, supplier details and a country-of-origin classification for each input. It mandates calculations of originating and non-originating material values as percentages of FOB value, a description of the manufacturing process, a signed declaration permitting inspection and record maintenance, and a competent authority verification and endorsement of originating status.