Sibanye offers $294 million for Aquarius but hunt for more assets is not yet over.
Mediclinic International is talks with Abu Dhabi-based rival Al Noor Hospital Group about a potential merger.
South Africa's No.3 gold producer by value, Sibanye Gold, has offered $294 million to buy Aquarius Platinum.
South Africa's business confidence index fell to its lowest in 22 years in September.
How to live like South Africa's elite.
S.Africa rand weakened against the dollar on Tuesday as uncertainty of when the US Federal Reserve will raise interest rates mounted.
S.Africa's parole review board on Monday delayed the release of Paralympic gold medallist Oscar Pistorius from prison.