In the administration's earlier review, completed Jan. 17, DP World agreed to cooperate with law enforcement investigations and disclose many private business records on demand by U.S. agents. The government panel unanimously approved the deal after an ordinary 30-day review, during which U.S. intelligence agencies reported they found no derogatory information about DP World in their files.
In its legal papers, DP World said it would abide by the outcome of the pending review but indicated it could sue if the results were any different.
A chief critic of the ports deal, Rep. Peter King, chairman of the House Homeland Security Committee, said the company appeared to invite the more thorough investigation sought by many lawmakers. King, R-N.Y., said the proposal should be enough to delay immediate efforts in Congress to block the deal.
Associated Press writers Liz Sidoti and Devlin Barrett contributed to this report.