Pirates have secured the services of midfielder Mthetheleli Mthiyane (Stellenbosch FC), centre-back Sbangani Zulu (Richards Bay), as well as winger Bohale Ngwato and Zambian international forward Ghampani Lungu (both Siwelele).
Lungu, 27, has been in South Africa since 2018, playing initially for SuperSport United before their status was sold to the owners of Siwelele last season.
He made 212 appearances for the teams, scoring 29 goals, including playing in the CAF Confederation Cup for SuperSport.
Mthiyane, 25, joined Stellenbosch from Milford FC last season and was an instant hit in his first campaign in the top flight. He made 38 appearances for the Winelands club, netting a single goal.
The 20-year-old Ngwato was promoted from the juniors at Siwelele last season and made 12 appearances, scoring once.
Zulu rose to prominence at Royal AM but moved to Richards Bay in April 2025 following the demise of that club. He made 25 appearances for the latter last season, without getting on the scoresheet.
Pirates will be competing in the CAF Champions League again this coming season after ending Mamelodi Sundowns' eight-year reign as South African title holders.
Meanwhile, Pirates also confirmed the exit of leading forward Tshegofatso Mabasa by mutual consent at the expiry of his contract.
The club also confirmed the expected exit of Sipho Mbule, Thabiso Lebitso, Bandile Shandu, Gilberto and Karim Kimvuidi.