Kangwa was ineligible to play in the preliminary knockout rounds following his return to Nkana after the 15 January 2014 registration deadline date.
Mwale said Kangwa’s eligibility now is a big boost especially to his front-line that is suffering from a goal drought dating back to 8 March.
“Definitely that (his availability) is automatic. He is coming into the team,” Mwale said.
“It is a good thing for Kangwa to come in. He is an influential player, committed and disciplined.”
Kangwa returned to Nkana in January after resolving a contractual dispute with the 2013 Faz Super League champions after a prospective move to Europe last year fell through.
The striker has so far shown glimpses of a promising 2014 season after scoring a brace in Zambia’s 2-0 win over Uganda in a friendly in March and one goal in Nkana’s 3-1 Charity Shield final win over Red Arrows in February.
Meanwhile, Nkana’s qualification will give a chance to Bruce Musakanya to finally make his African debut with the club after missing the preliminary round matches due to injury.