An investigation found that Ma Duy Tuan met a Vietnamese woman named Thuy in China while working as a porter across the border in 2007 and the human trafficker offered to pay him 8,000 yuan (US$1,230) for each Vietnamese woman he could bring over.

Tuan somehow managed to persuade his girlfriend, who was pregnant at the time, to gave herself up for the money, telling her to escape and return to Vietnam later.

The man sold six more Vietnamese women to China after that, until he and Thuy were arrested by Chinese police in 2008. Tuan was convicted and freed in March 2014 after nearly four years in jail in China

Vietnamese police arrested Tuan early this month to investigate his illegal activities again after finally rescuing his girlfriend and one of the other victims.

Human trafficking has been on the rise in Vietnam, with more than 1,000 women and children trafficked abroad between January 2014 and June 2015, mostly to Cambodia and China, according to border guards’ reports.

Thanh Nien News - February 16, 2016