Lol. The problem isn't a lack of roads, it's the fact that parts of eastern DRC are still effectively war zones. This isn't tech companies not caring, this is an ongoing war, a government incapable of controlling the country (and hardly the good guys even where they do have control), rebel groups (which have control over minerals and need income) running their own proto-states, long-standing tribal conflicts, militarily powerful neighbors with vested interests in keeping the conflict going and DRC's precious resources flowing over the borders, a widespread Ebola outbreak, and hundreds of thousands of refugees fleeing their homes.

Google 'wanting to know' isn't going to solve the chaos in that part of the world that leads to the supply chain tracking problems.