Korea Customs Cracks Down on E-Cigarette Liquid Tax Evasion

The Korea Customs Service has launched an enforcement campaign to prevent importers from disguising taxable vaping liquids as tax-exempt products. This regulatory tightening follows statutory amendments to South Korea’s Tobacco Business Act, which officially brought synthetic nicotine under standard tobacco taxation rules.

Stricter Import Requirements for Chinese Shipments

Because the vast majority of nicotine-like and zero-nicotine liquids enter South Korea from China, customs authorities now verify supply chains directly at the transaction stage. Importers must submit five mandatory records prior to clearance:

Material Safety Data Sheets (MSDS)
Special electronic transaction contracts
Supply-chain transaction relationship diagrams
Export declaration certificates from the country of origin
Production licenses issued by Chinese tobacco monopoly authorities

Pre-Clearance Testing for Nicotine Analogs

Beyond document scrutiny, the Central Customs Analysis Office now conducts mandatory chemical analysis on all e-liquid import declarations. Border testing has uncovered 22 separate cases where importers falsely declared nicotine solutions as zero-nicotine liquids, seizing 65.43 liters of mislabeled inventory.

Working alongside the Ministry of Food and Drug Safety, customs officials developed unified diagnostic standards to identify novel “nicotine pseudo-substances.” These chemical compounds mimic the pharmacological effects and molecular structure of nicotine but are altered to exploit regulatory loopholes.

Post-Clearance Audits and Inter-Agency Raids

Customs scrutiny continues after goods enter domestic distribution. Officials are auditing high-risk businesses suspected of misclassifying natural nicotine, undervaluing import invoices, or executing illegal foreign currency remittances. Intelligence is being shared directly with the National Tax Service and the National Police Agency to facilitate joint prosecutions.

Lee Jin-hee, Director General of the Customs Clearance Bureau at KCS, confirmed the agency’s strict posture on regulatory evasion:

“Illegal attempts to develop new substances or falsely declare ingredients to evade tobacco regulations are expected to continue appearing. We plan to respond strictly to illegal activities by mobilizing all available resources.”

Read more: South Korea Bans Online Sales of Synthetic Nicotine E-Liquids

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Matthew Ma

Marketing at Ecigator

With over a decade of experience in the e-cigarette industry, Matthew Ma is a seasoned expert in both the manufacturing and usage aspects of vaping products. His extensive background has provided him with a deep understanding of the intricacies and evolving dynamics of e-cigarettes.