For purposes of subdivision (4)(ii)(B) of this paragraph, there is an agreement or understanding that property will ultimately be used in the United States if, for example, a component is sold abroad under an express agreement with the foreign purchaser that the component is to be incorporated into a product to be sold back to the United States. As a further example, there would also be such an agreement or understanding if the foreign purchaser indicated at the time of the sale or previously that the component is to be incorporated into a product which is designed principally for the United States market. However, such an agreement or understanding does not result from the mere fact that a second product, into which components exported from the United States have been incorporated and which is sold on the world market, is sold in substantial quantities in the United States.
Example. Assume that a manufacturer produces a total of 20,000 electronic devices. The manufacturer exports 5,000 of the devices and subsequently sells 11,000 of the devices to a FSC which exports the 11,000 devices. The major single component article in each device is a tube which represents 60 percent of the fair market value of the device at the time the device is sold by the manufacturer. The manufacturer imports 8,000 of the tubes and produces the remaining 12,000 tubes. For purposes of this subdivision, in accordance with the substitution principle used in the customs drawback laws, the 5,000 devices exported by the manufacturer are each treated as containing an imported tube because the devices were exported prior to the sale to the FSC. The remaining 3,000 imported tubes are treated as being contained in the first 3,000 devices purchased and exported by the FSC. Thus, since the 50 percent test is not met with respect to the first 3,000 devices purchased and exported by the FSC, those devices are not export property. The remaining 8,000 devices purchased and exported by the FSC are treated as containing tubes produced in the United States, and those devices are export property (if they otherwise meet the requirements of this section).
For purposes of this paragraph, a product or commodity derived from shale oil which would be a primary product from oil if derived from crude oil is considered a primary product from oil.
26 C.F.R. §1.927(a)-1T