1. "Application Form for Extension of Tax Refund (Exemption) for Export Goods" or "Application Form for Extension of Tax Refund (Exemption) for Export Goods";
2. Export Enterprises Written application for overdue or extended declaration (stamped with official seal and legal person seal);
3. Written application materials printed by yourself;
4. If the information provided by the enterprise is insufficient to explain In this case, the company also needs to provide third-party objective certification.