South Korea Liquid Vape Market After Synthetic Nicotine Regulation

On December 23, 2025, South Korea published a revision to the Tobacco Business Act, which officially took effect on April 24, 2026. The amendment expanded the legal definition of tobacco from products made exclusively of “tobacco leaves” to those containing “tobacco or nicotine.” This statutory change formally brings synthetic nicotine e-cigarettes within South Korea’s legal definition of tobacco.

From Regulatory Gray Area to Formal Framework

Previously, synthetic nicotine liquids operated outside several tobacco-specific rules. This status exempted them from restrictions on online sales, vending machine distribution, and standard tobacco advertising.

The 2026 amendment eliminates this regulatory gap. Following the revision, synthetic nicotine products are also subject to the National Health Promotion Act, which was amended on April 30, 2026. This brings these products into the health promotion charge system. To ease the transition, the government established a 50% reduction arrangement for synthetic-nicotine tobacco products, which remains in place until April 23, 2028.

The Prohibition of Online Sales

Because synthetic nicotine is now legally defined as tobacco, products containing it fall under existing tobacco retail restrictions. Consequently, online sales of these products are no longer permitted.

For distributors that previously relied on e-commerce, lawful consumer sales now depend more heavily on designated physical tobacco retailers, increasing the importance of established offline distribution networks. This regulatory shift removes lawful direct-to-consumer online sales for products covered by the tobacco definition.

New Compliance and Taxation Requirements

The transition from outside tobacco-specific regulation into the formal tobacco framework introduces new administrative and financial requirements. Importers and manufacturers are now responsible for integrating mandatory graphic health warnings and text onto packaging.

Additionally, the inclusion of synthetic nicotine in the National Health Promotion Act introduces new financial obligations. Even with the temporary 50% reduction in health promotion charges, these added costs alter the baseline expenses for importing and distributing liquid vapes in South Korea.

Potential Changes to Product Structure

South Korea’s National Health Promotion Charge for e-cigarettes using nicotine solution is calculated by liquid volume. The statutory rate is KRW 525 per milliliter, while qualifying non-tobacco-derived nicotine products receive a temporary 50% reduction through April 23, 2028. This makes liquid capacity a more direct part of the cost calculation than it was before synthetic nicotine entered the tobacco framework, especially for high-capacity disposable devices and large-volume open-system liquids.

It is plausible that the market may see a shift in preference toward product formats that balance compliance costs with acceptable retail pricing. The eventual balance between pre-filled pods, disposables, and open liquids will depend on how the new costs are reflected in wholesale and retail pricing, as well as how retailers adjust their product mix.

The Current Market Adjustment

As the April 2026 amendments take effect, the South Korean liquid vape market enters an adjustment period. The prohibition of online sales removes a previously available purchasing route and increases reliance on physical retail. Industry observers will be monitoring how retail networks handle this transition and how the temporary 50% reduction in the National Health Promotion Charge through April 23, 2028 affects pricing and product availability.