Springboks Ox Nche and Bongi Mbonambi are the latest Sharks players to extend their contracts with the club.
Springbok front-rower Ntuthuko Mchunu has agreed to a contract extension with the Sharks.
The Sharks defeated the Griquas 24-6 at Kings Park on Saturday to consolidate third place on the Currie Cup table, before Western Province thrashed the Blue Bulls.
Sharks Currie Cup coach Joey Mongalo claims they are ready to exact revenge on the Griquas when they meet in the eighth round of the competition in Durban on Saturday.
Siya Kolisi has opted for surgery to treat the knee he injured playing for the Sharks against Munster in Durban last weekend.
The Sharks have announced that flyhalf Curwin Bosch has signed a new long-term contract extension with the franchise.