United States imports and exports.
Imports of hexamethylenetetramine to the United States are shown in table [87].
Table 87.—Hexamethylenetetramine: United States imports for consumption, 1923-37
| Calendar year | Rate of duty | Quantity | Value | Unit value | Computed ad valorem rate |
|---|---|---|---|---|---|
| Pounds | Percent | ||||
| 1923 | 25 percent | 47,373 | $24,722 | $0.522 | |
| 1924 | do | 3,826 | 3,998 | 1.045 | |
| 1925 | do | 20,771 | 10,453 | .503 | |
| 1926 | do | 23,481 | 10,237 | .436 | |
| 1927 | do | 3,417 | 1,715 | .502 | |
| 1928 | do | 5,898 | 1,643 | .279 | |
| 1929 | do | 5,562 | 1,857 | .334 | |
| 1930: | |||||
| Jan. 1-June 17 | do | ||||
| June 18-Dec. 31 | 11 cents per pound | ||||
| 1931 | do | ||||
| 1932 | do | 1,103 | 336 | .305 | 36.1 |
| 1933 | do | 1,103 | 293 | .266 | 41.4 |
| 1934 | do | 612 | 273 | .446 | 24.7 |
| 1935 | do | ||||
| 1936 | do | 7,496 | 1,510 | .201 | 54.6 |
| 19371 | do | 10,895 | 8,197 | .200 | 54.9 |
1 Preliminary.
Source: Foreign Commerce and Navigation of the United States.
Imports of hexamethylenetetramine in 1928 came principally from the United Kingdom, the remainder from Germany. In 1929 they came wholly from Germany; in 1932 and 1933 from Belgium; and in 1934 principally from Canada, with the rest from the United Kingdom. In 1936 Belgium supplied 7,166 pounds valued at $1,368 and Germany 330 pounds valued at $142.
Exports of hexamethylenetetramine are not shown in official statistics. It is known, however, that some has been exported, and that in 1933, at least, exports exceeded imports.