The UAE Foreign Ministry said the move was in line with efforts to bolster bilateral ties with Iran while also looking at the interests of the wider region.
The signed energy deal will allow co-operation in the field of energy supply and investments by both countries in hydrogen, renewable and nuclear energy.
A hydrocarbon-fueled political crisis at home is mainly driving the US president’s upcoming visit to the region.
The deal eliminates bilateral tariffs on 96 percent of goods and aims to boost trade volume between the two countries to up to $10 billion.
Under the deal, the control and management of four international airports — Kabul, Kandahar, Herat and Mazar-e-Sharif — will be run by a UAE aviation company, according to state-run Bakhtar News Agency.
The authorities gave no indication of foul play in the blast that killed at least two people, wounded 120 others and damaged several buildings and stores.
Thirty-one-year-old Mohamed Alnaas will receive $50,000 as prize money for his debut novel, "Bread on Uncle Milad's Table", which explores gender roles in a Libyan village.
As the nation mourns the death of former President Sheikh Khalifa bin Zayed, his half-brother is elected as the new president by the Federal Supreme Council.
The Ministry of Presidential Affairs announced 40 days of mourning with flags at half-mast, with work suspended in the public and private sectors for the first three days.
Local reports have suggested the rough ruby with greenish and dark-purple hues could fetch up to $120 million.
Escaping turmoil back home, Russians are pouring into the emirate which offers a lax regulatory environment to secure their wealth.
The agreement includes regulation, customs, services, government procurement and electronic trade and will come into effect when signed by the countries' economy ministers and ratified.
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