His business interests include a seat on the board of Lonmin, the company that owns the platinum mine where, two months ago, a wildcat strike led to a police massacre of 34 workers. Ramaphosa sought to intervene with senior government figures on Lonmin's behalf. On the eve of the killings, he called for action against miners engaged in "dastardly criminal" conduct. Ramaphosa had called for action to deal with the "criminals", whose crime was to seek a wage increase. Ramaphosa warned the police minister, Nathi Mthethwa, to come down hard on the strikers, and was lobbied by Lonmin management to "influence" Shabangu and advised her that "silence and inaction" on the events was "bad for her and government". E-mails showed a direct collusion between Ramaphosa, Lonmin, mineral resources minister Susan Shabangu's department, the police ministry and state security agencies.
Co-author of the post-apartheid constitution, a patrician figure in the governing African National Congress Ramaphosa has been touted as a possible deputy to President Jacob Zuma in an ANC leadership election in December.