For taxable goods used as raw materials for the manufacture of another kind of taxable goods, the manufacturer shall fill out a Material Computation Form for the said taxable goods and apply to the competent tax authority for inspection. After an inspection agency spot checks the quantity of said material under the instruction of the competent tax authority, the competent tax authority will determine the standards for calculating the commodity tax exemption. If there is a need to prescribe uniform standards for the use of said materials, the competent tax authority should submit the proposal to the Ministry of Finance for approval.
A taxable material may be exempted only if it constitutes an ingredient of the taxable goods; the fuel supply, testing or packaging materials for the manufacture of taxable goods are not exempted from commodity tax.