1925 – Colonial expansion

Rio Tinto expands beyond Spain, starting with the Copper Belt in what is now Zambia but was then called Northern Rhodesia after Cecil Rhodes, an emblem of white supremacy and colonialism who actively reinforces apartheid to exploit Black Africans in his mining operations.

https://londonminingnetwork.org/2016/02/londons-mining-history-from-colonialism-to-apartheid-why-rhodes-must-fall/