As China's cities expand, fuelling the country's economic growth, so the country's demand for construction materials grows.

This is the story of one iron ore company in the US state of Minnesota - being bought by a management team in which one of China's largest steel manufacturers has a stake.

What are the impacts of such an investment, and what are the reasons for it?

And what does a Chinese investment in a US construction firm say about the relationship between the countries?

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	Analysis