A Chinese investment story we discussed a while back, actually also many times on the House of Chiefs (e.g. here, here and here), gained new momentum this week with the formal $3.6bn Investment Promotion and Protection Agreement (IPPA) between Zambia and Zhongui Mining Group. I have not seen the details of the IPPA, perhaps Mr Mutati would be so kind enough to publish it ? Without the details it is difficult to know what Zambia has agreed to.
All I know is that IPPAs usually contain special provisions. They are designed to encourage investor confidence by setting "high standards of investor protection applicable in international law". The elements usually include provisions for equal and non-discriminatory treatment of investors and their investments, compensation for expropriation, "transfer of capital and returns" and "access to independent settlement of disputes". Also they are usually not well received due to their secrecy (e.g. see this Tanzanian case).
Mr Mutati has a website, perhaps now is a good time for him to upload some documents that are actually worth reading. I am not holding my breath though, if the Development Agreements saga is anything to go by.