PHNOM Penh will host Vietnam's biannual High Quality Products exhibition September 2-6, Vietnamese Embassy Commercial Councillor Le Bien Cuong said Tuesday. The coming exhibition, which was first held in 2002, will feature 200 booths from 150 Vietnamese companies, he added. "The number of Vietnamese companies [at the event] has increased around 10 percent year on year," he said, adding that there are plans to expand the event to the provinces. Trade between the two neighbours fell 30 percent in the first six months of this year to US$637 million.