Johannesburg - Julius Malema is expected to launch the Economic Freedom Fighters into South Africa's political landscape in Marikana, North West, on Sunday.
The EFF received its registration certificate from the Independent Electoral Commission (IEC) on Monday.
Malema, once an outspoken supporter of President Jacob Zuma and president of the African National Congress Youth League, formed the party after being expelled from the ANC.
On Saturday, eight cattle were slaughtered ahead of the ceremony at a hill at the Nkaneng informal settlement where police shot dead 34 people, many of them striking miners, last August.
Malema, dressed in a red party T-shirt, red beret, red trousers and red shoes, personally slaughtered an ox.
According to its constitution, the EFF is a radical, left-wing, anti-capitalist, and anti-imperialist movement.
The party claims it provides clear and cogent alternatives to post-colonial economic systems, which in many countries had kept the oppressed under colonial domination.
The party advocates the expropriation of land without compensation, and the nationalisation of mines, banks, and other strategic sectors of the economy.