From: US GAO
Electronic Cigarettes: U.S. Imports in 2016
GAO-17-515R: Published: Apr 24, 2017. Publicly Released: May 24, 2017.
The federal government began collecting data on U.S. imports of electronic cigarettes (e-cigarettes) on January 1, 2016. We analyzed these new data and found that the value of U.S. e-cigarette imports totaled about $342 million in 2016—and brought in about $9 million in tariff revenue.
E-cigarette devices accounted for nearly 60% of the value of these imports, parts for nearly 32%, and liquid for almost 9%. And, although e-cigarettes were imported from 41 countries, China accounted for 91% of imports by value.