E-cigarettes are a booming industry in China. Although China only had a 6 percent share in the consumption of e-cigarettes in the world as of 2016, according to a report by Chinese consulting firm ASKCI Consulting, about 90 percent of e-cigarettes in the world are manufactured in China, mostly in Shenzhen. Most of these e-cigarettes are exported to countries in North America and Europe. Its invention is also deeply connected with China. [...]