Section 170National Internal Revenue Code of 1997 (Republic Act No. 8424), Sec. 170

Requirements Governing Rectification and Compounding of Liquors. - Persons engaged in the rectification or compounding of liquors shall, as to the mode of conducting their business and supervision over the same, be subject to all the requirements of law applicable to distilleries: Provided, That where a rectifier makes use of spirits upon which the excise tax has been paid, no further tax shall be collected on any rectified spirits produced exclusively therefrom: Provided, further, That compounders in the manufacture of any intoxicating beverage whatever, shall not be allowed to make use of spirits upon which the excise tax has not been previously paid.