Lonmin plc (LSE: LMI, JSE: LOLMI), formerly Lonrho plc, is a producer of platinum group metals operating in the Bushveld Complex of South Africa. It is listed on the London Stock Exchange and is a constituent of the FTSE 250 Index. Its registered office is in London, and its operational headquarters are in Johannesburg, South Africa.

The Company was incorporated in the United Kingdom on 13 May 1909 as the London and Rhodesian Mining and Land Company Limited.

Businessman Tiny Rowland was recruited as chief executive in 1962. For many years during the second half of the twentieth century it was frequently in the news, not only due to the politically-sensitive part of the world in which it had mining businesses, but also – as it strove to become a conglomerate not wholly dependent on these businesses – in a number of takeover battles, most notably for the Harrods of Knightsbridge department store.

In 1968, Lonrho acquired Ashanti Goldfields Corporation, a gold mining business in Ghana. The former Conservative minister Duncan Sandys, a director of Ashanti, became Lonrho's chairman in 1972.