The Czech Republic has become a major transit point for rhino horn trafficking in recent years.
At least 736 rhino have been killed in South Africa this year alone.
SANParks has missed the window to move rhino this year but has developed an alternative plan.
Police said officials recovered an unlicensed firearm as well as a rhino horn.
Thieves in Mpumalanga made off with 112 pieces of rhino horn, weighing 80,135kgs.
Bavaria Breweries and five major local retailers collected the money over the past few months.