The problem with available sources is that they are already part of existing supply chain.
As for what is happening in Africa, you need to pay better attention.
Is China a New Colonial Power? - The Diplomat
China is said to propping up its own industries by extracting raw materials, such as minerals, fossil fuels, and agricultural commodities, from all over the world, with Africa as its main target. China is “present” in 39 African countries and is the continent’s biggest trade partner.Nov 9, 2020