Months after declaring victory over jihadists, war-battered Iraq hopes to attract billions of dollars from private investors as well as donors to fund its reconstruction.
The country is still reeling from the rise of IS and the punishing fightback it took to crush the jihadists, with swathes of its territory in ruins and millions of people displaced.
"It's a huge amount of money. We know we cannot provide it through our own budget," he said at the World Economic Forum in Davos, Switzerland last month.
"That's why we now resorted to investment," he said.
International organisations are to speak on the first day, while attending donor countries are expected to make announcements on the third.
The US State Department has said that rather than "direct contributions", Washington has "focused on the private sector. It has teamed up with the US Chamber of Commerce to organise a delegation of over 150 American companies to travel to Kuwait" for the conference.
That sparked the first Gulf War, which ended after a US- led coalition ousted Iraqi forces from the emirate.
Iraqis have since weathered international sanctions, a US-led invasion in 2003 and the battle against IS.
Today, some 2.6 million people remain displaced across the country, the International Organisation for Migration has said.
Satellite imagery shows some 26,000 houses are destroyed or seriously damaged, including more than 17,000 in the jihadists' former bastion of Mosul.
"There is huge destruction and a huge need to mobilise support," said Erfan Ali, Iraq representative of the UN Human Settlements Programme.
Ali said there are big hopes the private sector will play a major role in rebuilding, offering "innovative solutions" to tackle the country's problems.
Attracting investors will be no easy task in a country ranked as the world's tenth most corrupt in Transparency International's 2016 Corruption Perceptions Index.
But Ali said companies and businessmen will have access to a "reconstruction data platform to ensure accountability and transparency".
Peter Hawkins, representative for the UN children's fund in Iraq, says reconstruction will be a mammoth task -- not just in Mosul, retaken from IS last July after several months of fighting, but also elsewhere.
Though much of the battle against IS took place in northern Iraq, its southern provinces have also suffered from government budget cuts during the conflict.
Overstretched schools in the south teach children in two or three shifts, the UNICEF official said.
Iraq -- where nearly a quarter of the population survive on less than USD 2 a day -- needs "major investment in health, education, social warfare" and water resources, he said.
Above all, educating young Iraqis is a chief concern, Hawkins said.
"If we do not start to invest in children's education today, this generation will be lost and will not be able to contribute to the economy and the security of Iraq when they grow up.
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