E cigarette regulations strengthening next year as gov't seeks to curb teenage use 2FIRSTS South Korea Faces Loopholes in Synthetic Nicotine E Cig Regulation, Fueling Youth Abuse and Tax Losses Korea closes loophole on synthetic nicotine to curb youth vaping The Korea Times Though vaping is legal in South Korea, there are several restrictions on their use and sales in the country, including a ban on sales to anyone under 19. According to The Straits South Korea classifies liquid e cigarettes as tobacco, enforces warnings and fines CHOSUNBIZ Smoking Rates by Country and Gender in 2025 Visual Capitalist