Section 901. Payment of Drawbacks.— Eligible claims for refund or tax credit shall be paid or granted by the Bureau to claimants within sixty (60) days after receipt of properly accomplished claims: Provided, That a registered enterprise under Republic Act No. 5186, otherwise known as the “Investment Incentives Act”, or Republic Act No. 6135, otherwise known as the “Export Incentives Act of 1970”, which has previously enjoyed tax credits based on customs duties paid onimported raw materials and supplies, shall not be entitled to a drawback under this section with respect to the same importation subsequently processed and reexported.

The Secretary of Finance may, upon the recommendation of the Commissioner, promulgate rules and regulations allowing partial payments of drawbacks pursuant to this section.