Valuation of exported iron ore: testing-based assessment and contract tolerances govern finalization of assessable value. Valuation of iron ore exports requires sample drawal per Bureau of Indian Standards and testing at load and discharge ports; declared values are to be scrutinized against provisional invoices, contracts, weight and price and may be provisionally assessed under Section 14 and the Customs Valuation (Determination of Value of Export Goods) Rules, 2007. Where discharge tests affect price the value must be re determined under the Valuation Rules and averaging of load and discharge reports is not permitted; related party investigations and Bank Realisation Certificate monitoring must be followed.