Alexander Trofimov, 42, was arrested on October 17, 2007, at his house in the popular Cambodian resort of Sihanoukville, after the parents of seven of his alleged victims, some as young as 11, filed complaints against him.
According to Cambodian prosecutors, Trofimov, who was the head of the Cambodia-based Koh Pos Investment Group, had sex with at least 19 underage girls. The oldest of them is said to be 17-years-old.
After being convicted following a trial for the first of 19 criminal charges, a Phnom Penh municipal court sentenced Trofimov in March to 13 years in prison and ordered him to pay $100,000 in compensation to the victims.
However, Cambodia's appeals court reduced his sentence last Friday to six years due to recent changes in legislation.
Trofimov still faces 18 additional charges, but hearings, which had been scheduled for September 23, were postponed until October 13 and again today for an indefinite period after Trofimov's lawyer failed to appear in court.
Cambodia has long been notorious for foreign child molesters, but in recent years police and courts in the country have taken a more stringent stance toward the sexual abuse of children.
Cambodia courts convicted two German nationals in April and March this year of similar crimes.