Six men, aged between 21 and 43-years-old, were arrested in an enforcement operation by the Singapore Customs on 13 April.
The six men consisted of five Chinese nationals and a Malaysian, one of whom was apparently helping his colleagues buy the contraband cigarettes by collating and fulfilling their orders.
The enforcement operation targeted buyers of the duty-unpaid cigarettes from online peddlers.
A total of 40 cartons, 85 packets and 116 sticks (9.8kg) of contraband cigarettes were seized.
The total duty and GST evaded was about $4,500.
Three of the six men have been charged while investigations are still going on for the rest.
Additionally, another 11 men were fined between $500 to $5,000; they consisted of six Chinese nationals and five Malaysians.
The buyers of the contraband cigarettes were tracked down via the digital footprint of the peddlers.