South China said in a statement on Thursday that Kezman is scheduled to arrive in Hong Kong on Saturday.
One-season wonder: Mateja Kezman played for Chelsea in the 2004-5 season
The 31-year-old forward previously played for Premier League side Chelsea, Atletico Madrid in Spain and PSV Eindhoven in Holland.
Butt, who was signed in December, is scheduled to arrive on Wednesday.
Blues allay Lampard injury fears with midfielder set to be fit for Bolton clashChelsea make Lescott their second choice if Luiz proves too expensiveMan United legend Cantona lured back into football by New York CosmosJohnson confident Manchester United will slip up to hand City a trophy
Explore more:People: Nicky Butt Places: Hong Kong, Spain, The Netherlands, China