Chippa defeated SuperSport 3-0 on Wednesday to ensure that their Absa Premiership survival remains in their own hands.
While Modiba acknowledges that they'll be facing a good team again at Sisa Dukashe Stadium today, the former Cape Town City attacker has his sights firmly set on victory.
"We are playing a very good side by Chippa United. They play good football," Modiba tells KickOff.com.
"They are not there [in the semi-final] by mistake. They've been doing well [in the Nedbank Cup] even though they've not been doing well in the league.
"We've got a good coach and good technical staff... We will analyse them and see how we can penetrate them in order for us to win at the end of the day."
Modiba adds that it will be tough playing in East London, but insists they are up for the challenge.
"It's going to be a tough game. They are taking us to East London where the stadium is going to be packed, so it's not going to be easy for us.
"But we are not focusing on that, we are focusing on ourselves, on how to win that game, and obviously defend our title... be it against [Orlando] Pirates or Golden Arrows [in the final]."
Arrows will be hosting the Buccaneers at the Princess Magogo Stadium on Sunday (15h00).
The final will be played at the Moses Mabhida Stadium on June 24.