| | valorem and | trade agreement | | 3½ cents | with Belgium.[2] | | per pound.[1] | -------------------+------+-----------------+---------------------------- [1] Ad valorem based on American selling price or United States value. [2] Generalized to all countries which do not discriminate against United States products. Under the Tariff Act of 1930, crude naphthalene is on the free list[18] and refined naphthalene is dutiable at 7 cents per pound and 40 percent ad valorem on the basis of American selling price, since it is competitive with refined naphthalene produced in this country.[19] Under the trade agreement with Belgium, effective May 1, 1935, the duty on refined naphthalene was reduced to 20 percent[20] ad valorem and 3½ cents per pound on imports from that country. Under the Trade Agreements Act this reduction applies also to imports from all other countries which do not discriminate against commerce of the United States. In July 1938 Germany was the only one not receiving the reduced rate, exports from that country being subject to the rates specified under the Tariff Act of 1930. _Import statistics._—Table 43 shows imports of crude naphthalene (solidifying at less than 79° C.) and table 44 of refined naphthalene (solidifying at or above 79° C.) The unit invoice values of imports of refined naphthalene in 1924, 1926, 1927, 1928, and 1935 indicate that the imported product was probably not naphthalene as recorded but one of its derivatives provided for elsewhere in paragraph 27. TABLE 43.—_Crude naphthalene (solidifying at less than 79° C.): United States imports for consumption, in specified years, 1919-37_