The economic plan will be presented at a conference in Bahrain next week, but the Palestinian Authority has said it will boycott the event.
It comes against the backdrop of US recognition of Jerusalem as Israel's capital and the slashing of hundreds of millions of dollars in US assistance to the West Bank and Gaza.
President Donald Trump's son-in-law Jared Kushner, says his long-awaited proposal for a Middle East peace plan is built on projects that he called the "Opportunity of the Century".
