NEW visa exemptions for Cambodian and Thai citizens came into effect yesterday, expected to boost tourism and trade in both countries. The agreement allows citizens of each country to travel across borders visa-free for 14 days. Koy Kuong, an undersecretary of state at the Ministry of Foreign Affairs, said it facilitated cross-border investment and business trips. Minister of Tourism Thong Khon said the long-awaited exemption could see the Kingdom’s 100,000 Thai visitors a year double.