There is a good chance the device on which you are reading this contains cobalt, a metal essential to the production of batteries in phones and laptops. There is also a serious likelihood that the cobalt in your device was mined by slaves.
Almost two-thirds of the cobalt mined around the world comes from the Democratic Republic of the Congo (DRC). The central African country has a notorious reputation for human rights abuses, including slave labour.
It is all but impossible to know if cobalt from the DRC is slave-free. The same goes for many other products and commodities around the world, from tuna to coffee.