Export profit deduction for resident exporters: profits apportioned to export turnover eligible subject to foreign exchange receipt and certification requirements. Section 80HHC allows resident Indian companies and persons engaged in export to claim a deduction for profits derived from export of goods, computed by apportioning business profits to export turnover for manufactured goods and by reducing export turnover by direct and indirect costs for trading goods. Supporting manufacturers selling to certified Export Houses or Trading Houses may claim a deduction where the buyer has not claimed it. The deduction is subject to receipt of sale proceeds in convertible foreign exchange, exclusions for specified minerals and mineral oil, phased limits on the extent of deductible profits, and prescribed accountant and auditor certification requirements.