Cambodia will host a major Asean ministerial meeting in July, where Clinton is expected to attend.
Hun Sen announced a ban on May 7, but since then, the Ministry of Agriculture granted land to companies in three provinces.
The report said the vehicles were transported on a Cambodia-registered ship.
Foreign Minister Hor Namhong said after the meeting the Cambodia was seeking greater US investment in Cambodia.
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.
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 ministry prohibited five affiliate stations in Cambodia from running Khmer-language RFA and VOA programs last Saturday.
A Ministry of Information official confirmed Monday the government had banned broadcasts of VOA and RFA during the election Sunday.
Ten parties will field candidates for nearly 11,600 seats across more than 1,600 communes in Sunday’s election.
As Cambodians prepare for local elections Sunday, voters say petty corruption in their villages is very much on their mind.