The basic meaning of export goods tax refund, or export tax refund for short, refers to the refund of value-added tax (VAT) and consumption tax (CST) actually paid on exported goods at the domestic production and distribution stages. The export tax rebate system is an important part of a country's tax revenue. The main purpose of export tax rebate is to balance the tax burden of domestic products by refunding the domestic tax paid on exported goods, so that domestic products can enter the international market at a tax-free cost and compete with foreign products under the same conditions, thus enhancing the competitiveness and expanding the foreign exchange earnings from exports.