Angolan President Joao Lourenco will visit South Korea next week to hold a summit with President Yoon Suk Yeol and discuss cooperation in trade and investment in various sectors, Yoon's office said Saturday.Lourenco will pay an official three-day visit to South Korea starting Sunday, during which the leaders will meet Tuesday to discuss ways to bolster real cooperation, the presidential office said.The bilateral summit is the first of its kind.Source: Yonhap News Agency