An Emperor Group employee was yesterday fined $7,500 for failing to disclose his criminal record to the Securities and Futures Commission. Cheng Chi-wai, 28, of Emperor Exchange International, told Western Court he had been found guilty of claiming to be a member of a triad society in 1985 and had also been convicted of a drugs offence. But on September 27, 1994, when he applied for a licence to be a leveraged forex trader, he withheld the information and misled the Commission. Cheng pleaded guilty to false representation in obtaining a licence. He said he had misunderstood the law and wrongly believed the records had been erased. Magistrate Paul Kelly ordered Cheng to pay $6,048 costs on top of the fine. In four separate cases, Mr Kelly also fined three men and a woman $7,500 each and ordered them to pay $3,926 to $7,634 investigation costs after they admitted keeping criminal convictions from the Commission. The four - manager Chan Shiu-kai, 57, sales representative Yeung King-lau, 41, senior account manager Li Pun-wing, 37, and clerk Tam Chui-yan, 21 - were arrested between June and July after fingerprint checks. Chan, Yeung and Li each admitted making false representation when they applied for leverage forex trading representative licences between September 1994 and September last year. Tam admitted misleading the Commission when she tried to obtain a certificate of registration as a dealer or investment representative.