[3] However, on December 9, 2009, a memorandum of understanding was signed between the Cambodian Government and the Vietnam Industrial and Urban Area Investment Development Corp (IDICO) to conduct a new feasibility study on the dam.
[5] Despite the ban, The Royal Group conglomerate received permission from the Ministry of Mines and Energy to conduct feasibility studies for the dam at three potential sites in 2022.
The dam's reservoir, which would extend well beyond the mainstream canal, would have an active storage of 70,000,000 cubic metres (57,000 acre⋅ft), and would inundate an area of 211 square kilometres (81 sq mi).
[6] Multiple independent agencies, including International Rivers, the Save the Mekong campaign and others have raised concerns about the dam's construction.
A report authorized by the Mekong River Commission and released in January 2010 recommended that the Stung Treng along with the Sambor Dam be delayed for 10 years.