Phnom Penh Municipal Court charged one man with drug trafficking Friday, after he was seized at the international airport Tuesday in possession of more than 2 kilograms of heroin.
Taiwanese national Wang Kuo Lin, 29, was arrested as he attempted to board a flight to Hong Kong, police said.
His arrest highlights what experts call a worrying increase in Cambodian production and shipment of narcotics.
Several drug couriers have been nabbed at the airport in recent months, and a year ago police made a massive raid on a methamphetamine production facility in Kampong Speu province.