TITLE IV — VALUE-ADDED TAX the said buyer’s goods and paid for in acceptable foreign currency and accounted for in accordance with the rules and regulations of the Bangko Sentral ng Pilipinas (BSP); (4) Sale of raw materials or packaging materials to exportoriented enterprise whose export sales exceed seventy percent (70%) of total annual production; (5) Those considered export sales under Executive Order No. 226, otherwise known as the Omnibus Investments Code of 1987, and other special laws; and (6) The sale of goods, supplies, equipment and fuel to persons engaged in international shipping or international air transport operations: Provided, That the goods, supplies, equipment and fuel shall be used for international shipping or air transport operations. Provided, That subparagraphs (3), (4), and (5) hereof shall be subject to the twelve percent (12%) value-added tax and no longer be considered export sales subject to zero percent (0%) VAT rate upon satisfaction of the following conditions: (1) The successful establishment and implementation of an enhanced VAT refund system that grants refunds of creditable input tax within ninety (90) days from the filing of the VAT refund application with the Bureau: Provided, That, to determine the effectivity of item no. 1, all applications filed from January 1, 2018 shall be processed and must be decided within ninety (90) days from the filing of the VAT refund application; and (2) All pending VAT refund claims as of December 31, 2017 shall be fully paid in cash by December 31, 2019. Provided, That the Department of Finance shall establish a VAT refund center in the Bureau of Internal Revenue (BIR) and in the Bureau of Customs (BOC) that will handle the processing and granting of cash refunds of creditable input tax. An amount equivalent to five percent (5%) of the total VAT collection of the BIR and the BOC from the immediately preceding year shall be automatically appropriated annually and shall be treated as a special account in the General Fund or as trust receipts for the purpose of funding claims for VAT refund: Provided, That any unused fund, at the end of the year shall revert to the General Fund. 118 Isla Lipana & Co., the Philippine member firm of the PwC network