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The African Union headquarters in Addis Ababa is a shiny spaceship-like structure that glistens in the afternoon sun.

With its accompanying skyscraper, it stands out in the Ethiopian capital.

Greetings in Mandarin welcome visitors as they enter the lifts, and the plastic palm trees bear the logos of the China Development Bank.

Everywhere, there are small indications that the building was made possible through Chinese financial aid.

In 2006, Beijing pledged $200m to build the headquarters. Completed in 2012, everything was custom-built by the Chinese - including a state-of-the-art computer system.

For several years, the building stood as a proud testament to ever-closer ties between China and Africa. Trade has rocketed over the past two decades, growing by about 20% a year, according to international consultancy McKinsey. China is Africa’s largest economic partner.

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