CDB, with its $562bn in assets at the end of last year, was perfectly positioned as a policy arm of the state to help secure the energy and mineral supplies China needs.

• 国开行去年年底的资产规模达5620亿美元，作为政府旗下的一家政策性机构，它具备得天独厚的条件，可以帮助中国获得所需的能源和矿物供给。