§151.55. Deductions for loss during processing. — Inbound Citations

(d) Samples of the material shall be taken in accordance with the commercial method in effect at the plant if to be used in a bonded smelting warehouse, or in accordance with §§ 151.52 through 151.55 of this chapter if entered for consumption, and the copper content thereof shall be determined by the Government chemist in accordance with the assay.

(a) Except where absolute deductions have been allowed in the liquidation of the entry for losses on copper, lead, and zinc content of metal-bearing materials, pursuant to Chapter 26, Additional U.S. Note 1, Harmonized Tariff Schedule of the United States (see § 151.55 of this chapter), the actual percentage of losses by weight shall be allowed if more than 90 percent by weight of:

(1) The zinc content initially treated at any lead plant, (2) the copper content of the imported materials treated at any zinc plant, or (3) the copper, lead, or zinc content of the imported material initially treated at any plant other than a copper, lead, or zinc plant is lost in processing such materials. Such actual percentage of losses by weight of the metal content shall be that shown by the manufacturer's annual statement. Such losses shall be applied in the liquidation of the entry to materials entered for consumption or for warehouse, during a 12-month period beginning on the first day of the month nearest to 90 days after the close of the manufacturer's fiscal year immediately preceding such 90-day period, provided the importer makes claim therefor in writing at the time the merchandise is entered. No further wastage shall be allowed. The full dutiable contents of such metal-bearing materials, as ascertained by commercial assay made by the Government chemists, less the wastage allowance (including dutiable metals entirely lost in smelting or refining, or both), shall constitute the quantity of dutiable metal which must be either exported, duty-paid, or transferred to another bonded warehouse in order to secure the cancellation of the charge made against the proprietor's bond as shown by the warehouse or rewarehouse entry account.