I came across an interesting article on  “Zooming in 10 materials and their supply chains” written by Laura – Value Chain. Below the short extract:

(…) “Get to know our 10 priority materials

The first round of analysis helped us to prioritize 10 material supply chains we wanted to further look into. We started by looking at which materials are most used heavily by the consumer electronics industry and how critical they are for phone functionality. We then combined that information with findings from our recycling and mining indicators. As a result, we came up with a shortlist of 10 materials: copper, cobalt, gallium, gold, indium, nickel, tantalum, tin, tungsten, and rare earths.”(…)