The meeting is scheduled to hold from Monday to Wednesday in the Angolan capital, Luanda.
Mr Shettima will engage foreign leaders and development partners on issues relating to the economy, security, climate change, among others.
The high-level diplomatic push for climate action shifted southward on Tuesday as G20 leaders met in Rio, backing the scaling up of climate finance.
He explained that UN institutions such as the Food and Agriculture Organisation (FAO) and the World Food Programme (WFP) also addressed these issues.
Mr Guterres said at a press conference in Cambodia’s capital, Phnom Penh, that the global economy could not afford to be split into two opposing camps.
“This is a moment of great tension,’’ Italian Interior Minister Luciana Lamorgese said on Wednesday.
