Why are the Chinese building ghost towns in foreign countries?

There's been a lot written about ghost towns in China. 

Now, state-owned China International Trust and Investment Corporation (CITIC) has built a town in Angola. And it's fairly empty.

Just outside Angola's capital city of Luanda is Nova Cidade de Kilamba a residential development of 750 eight-story apartment buildings, a dozen schools, and more than 100 retail units, reports the BBC's Louise Redvers.

Here is the story
Here are the pictures.

Weird.  Suspicious.  Evil?