Following a visit by his Burmese counterpart, Thein Sein, last week, Prime Minister Hun Sen warned against further sanctions against the junta from the international community.
A brutal crackdown in late September that left at least 15 people dead and thousands arrested led to tighter sanctions on the regime, but Hun Sen said Wednesday such sanctions went against the spirit of free trade and globalization.
"How can we talks about globalization when one country puts sanctions on another?" he asked, at a workshop on international trade in Phnom Penh.
And despite the recent crackdown and sanctions, businesses would likely stay, he said.
"Foreign companies will not leave Burma, do not wonder about it," Hun Sen said.
However, opposition leader Sam Rainsy said Wednesday Burma did not participate in global economics.
"If the global economy is to progress, the country should have democracy," he said. "I support sanctions, but only sanctions that affect the interests of individuals like dictators and their families."