A China girl who was forced into prostitution by her pimp had serviced about 100 clients on about 150 occasions here, a Community Court heard on Friday.

The 17-year-old Chinese national would receive about $60 each time for her sexual services and her pimp would collect all her prostitution earnings.

Between May 18 and June 1 - the day of her arrest - Tang Huisheng, 37, collected a total of about $9,000 from the minor. He used the money to pay for rental and other expenses, as well as for gambling.

Tang, who is unrepresented, pleaded guilty to four charges - bringing the minor here for prostitution, living on her earnings, harbouring her, and aiding Nordin Mohammed Noor to have paid sex with the minor for $100. Two other charges will be considered when he is sentenced.

The court heard that Tang and the minor flew here on May 16. She began working as a prostitute in Geylang two days later.

While the minor was soliciting for customers, Tang would be standing near her to render assistance. He also acted as a look-out and helped her to look for customers.

After Tang saw the minor being arrested, he made his way to Marina Bay Sands casino where he lost $18,300 within four days.

He also brought forward his return flight to Guangzhou, China, from June 10 to 5 but was arrested on June 5.

Deputy Public Prosecutors Stella Tan Wei Ling and Elizabeth Chua will give their submission on sentencing on Oct 2.

Tang is in custody as he could not raise the $15,000 bail offered. His bail was doubled on Friday after his conviction.

A total of 24 men have been charged with commercial sex with the minor, 13 of whom have each been sentenced to between 11 and 12 weeks. Two had their sentencing postponed after pleading guilty.