Foreign Minister Hor Namhong said after the meeting the Cambodia was seeking greater US investment in Cambodia.
The carvings were unveiled this month at an annual meeting of the International Coordinating Commttee.
Sam Rainsy Party officials said he was being arrested because of his politics and called for his immediate release.
A group of the protesters gathered in front of the Royal Palace for the second time on Monday.
Ambassador David Carden addressed about 70 officials as part of a seminar on legal information networks in the region.
Moeun Savun says that in her case, that meant losing the loan for her trucking company, based in Kampong Chamlorng commune.
The Cambodian People’s Party swept the commune elections on Sunday, winning nearly 1,600 of 1,633 commune chief positions.
On Thursday, they saw the spirits of Yay Mao and Ta Prak as their last resort, as residents burned chili peppers with salt and chanted.
The visit of Pak Ui-chun follows a five-day trip by Cambodian Foreign Minister Hor Namhong, which ended Thursday.
The Sam Rainsy Party won 22 commune council chief positions; the Human Rights Party won 18.
Voters said Tuesday they were looking for security and good governance from their local commune councils.
Election officials said they were happy with Sundays turnout, while many voters said they hoped to see change in local leadership.
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