Protesters were concerned over Cambodia's human rights record and inability to solve longstanding border disputes with its neighbors.
Sam Rainsy said the case involves both Cambodia and Vietnam, which makes it international in scope.
Cambodia may still be facing some challenges from the global financial crisis, but it has recently shown some good trends.
A company official said it was following a 2006 decision of the Kandal court that provided 210 hectares to the company.
Demonstrators plan to protest other issues, including land grabs, evictions, deforestation, and corruption in oil and gas.
If Cambodia gives up land, such as the Ta Moan temples of Oddar Meanchey province, he said, “it is going to be endless.”
Kampong Cham province had the most complaints, 18, followed by Takeo with 17, and Phnom Penh, Kandal and Prey Veng with nine each.
The 12 years are added to a two-year sentence Sam Rainsy is already facing for uprooting markers along the Vietnamese border last year.
Sam Rainsy, the main opposition leader, sought outside help to return to the country this week.
In the wake of last week's strikes, the leader of a federation of unions said workers need even greater unity to defend their interests.
The garment industry raised its loss estimates to $15 million on Wednesday in the wake of a general strike last week.
The money, borrowed by the US-backed Lon Nol regime, was “filthy debt,” Hun Sen said, inaugurating a new bridge in Phnom Penh on Monday.
The explosion ignited fires across five houses, but those were extinguished when nearly 10 fire trucks arrived at the scene.
Those snails form a part of the life cycle of schistosomiasis, which can have harmful effects on people.
If the penal code goes ahead as it stands, it will have ignored concerns from civil society.
In his report, Subedi urged more tolerance of criticism by public figures and cautioned against using the courts to silence dissent.
Workers continued to demonstrate on Monday, demanding that union representatives be allowed back to work.
A former refugee, Meas Sam lost to Jon Golnik for the Republican nomination in Massachusetts' fifth district.
Defense teams and prosecutors both have 30 days to appeal the closing order, which came after three years of investigation.
Cambodia has purchased 94 T-55 tanks from eastern Europe to bolster its military capacity, officials said.
ព័ត៌មានផ្សេងទៀត