The move is directed at a Chinese terminal operator responsible for importing tens of millions of barrels of Iranian crude.
The president spoke to an audience of thousands in the world’s largest community of senior citizens.
The president’s order imposes new restrictions and targets anyone complicit in human rights violations.
The legislature will have an opportunity to overturn the veto.

The law was slated to go into effect on June 30.
As of April 10, Ford said it had received 60 warranty claims and one field report related to the issue, with no injuries or accidents reported.
The U.S. government warned on Friday that even charities are not exempt.
It’s part of a series of actions by the Trump administration aiming to prevent illegal immigrants from obtaining taxpayer benefits or preferential treatment.
Abbas Ali Haider faces up to 10 years in federal prison for taking $40,000 each from Pakistani people to help them illegally cross the U.S. southern border.
As of March 31, the company’s individual exchange business had 369,000 members in individual and family plans.

‘The Chinese military has conducted research into cable‑cutting technologies,’ said Sen. Jim Risch.
The Supreme Court on April 29 struck down a map creating a second black-majority congressional district in Louisiana.
The federal agent was injured during an alleged assassination attempt at the White House Correspondents’ Dinner in Washington.
The department had been partially shuttered for 76 days, resulting in long Transportation Security Administration lines at airports nationwide.
The rule, which received unanimous approval, was designed to stop lawmakers and their staffers from insider trading.
Allen’s attorneys said he will no longer oppose his detention, for now.
They are alleged to have taken part in a conspiracy to export “massive amounts” of cocaine, heroin, methamphetamine, and fentanyl into the United States.
The leaders discussed a temporary truce to mark the May 9 anniversary of the end of World War II in Europe.
Texas has sued a China-linked operation the Attorney General’s office said has claimed responsibility for ‘1,000+ American-born babies.’
Despite planning to retire, Powell believes he has ‘no choice’ but stay in his seat on the Board of Governors.
After eight years at the helm of the Federal Reserve, a change of guard is set for May.