De Beerssè-kài soān-chio̍h-gia̍p ê Cartel, khòa-kok kong-si, chú-cháiⁿ chôan-kiû 4-chhiâⁿ ê soān-chio̍h khui-chhái kah bō͘-e̍k. De Beers tī 1888-nî Cecil Rhodes chhòng-pān, kong-si Chóng-pō͘ tī Luxembourg, sī chi̍t-keng su-jîn kong-si, hū-chek chhī-tiûⁿ thui-kńg. De Beers chú-iàu gia̍p-bū pau-koat chǹg-chio̍h khòng-chio̍h khui-chhái, bō͘-e̍k, kang-gia̍p chǹg-chio̍h seng-sán ki̍p ka-kang téng. Khui-chhái tē-tiám tī Botswana, Liberia, Lâm-hui kah Ka-ná-tāi.

De Beers Kong-si.