Two Hong Kong men have been sentenced to 10 years' jail in Vietnam for their part in the country's biggest racket smuggling women to prostitution rings. Fung Wai-keung, Yuen Hok-yan and three Vietnamese accomplices received the highest available punishment on charges of 'prostitution procurement' after sending dozens of young women to brothels in Macau. Jurors told the Ho Chi Minh City People's Court the gang's activities 'seriously violated social order and virtue', court officials said. The pair, both aged 35, are being held in Ho Chi Minh City's maximum security Chi Hoa prison and have 15 days to file an appeal. British diplomats were not informed of the trial and are expected to lodge a complaint and applications to visit the pair, last seen by a British official in December. Fung and Yuen, formerly of Macau's Skynight Dance Hall, worked for a string of brothels in Vietnam. They successfully smuggled an estimated 80 Vietnamese hostesses to the enclave as 'tourists', police said after an investigation in which local detectives travelled to Macau undercover. The women's passports were snatched away on arrival and they were bonded to work as prostitutes - some under the threat of violence. The high-living pair were arrested on September 2, 1995, after police watched their Ho Chi Minh City villa for several weeks. Vice detectives burst in as the men entertained several women due to be sent to Macau via Guangzhou. Fung and Yuen had travelled four times to Vietnam as tourists to work with Vietnamese contacts, interviewing candidates and preparing photographic brochures for their Macau bosses. Some of the women told detectives they were tricked into going to Macau for six months to work as waitresses, only to be forced to sleep with customers in brothels. They had to pay their way to Macau through Guangzhou airport, with the Hong Kong pair describing the enclave as 'the promised land of high incomes'. Once in Macau the syndicate took their passports and kept 60 per cent of their earnings, demanding up to HK$30,000 for the right to leave Macau early. One woman said four masked men beat her when she initially refused to sleep with customers. Another Hong Kong man, Lam Yu, 28, is in custody awaiting trial for a racket shipping Vietnamese to Macau via brothels in Cambodia.