Sipho Maseko, Vodacom SA's managing director and chief operating officer of the Vodacom Group, has resigned, the company said on Thursday.
"[He] has decided to leave the company to pursue other interests," it said in a statement.
Maseko would also step down from all his directorships of the group's companies, with immediate effect.
Maseko joined Vodacom in September last year.
"A further announcement will be made in due course," the company said.