«The conference will provide a basis for any dialogue or negotiations", Hadi said.
The president stressed that he saw Yemen "as a country for all the Yemenis."
The conference in the Saudi capital involves over 400 representatives of the country’s political forces and the international organizations. However, the representatives of the Houthi rebel group, the main opposition force in Yemen, do not participate in the conference.
On March 26, the Saudi-led coalition of Arab states started conducting airstrikes on Yemen, targeting Houthi rebel positions at Hadi's request.
On April 21, the coalition said it had ended the Decisive Storm military operation and announced the start of the Restoring Hope campaign, saying it would focus on counter-terrorism and humanitarian efforts. Despite the announcement, the airstrikes have continued.
More than 1,600 people, about half of them civilians, have died in Yemen since mid-March, according to the recent UN estimates.