The South Africans' goals were scored by Andre Dejong, in the 50th and 65th minutes.
The Angolans will play again on the 12th of January, against Berkane, from Morocco, in Luanda, and close the group stage on the 18th of the same month, against Stade Malien, from Mali, in the latter's stronghold.
Berkane leads the group, with nine points, followed by Stellenbosch FC, which has six, Stade Malien is third, with four, while Desportivo da Lunda Sul is last, with just one.
Bravos do Maquis also failed to win, having lost four goals to zero to CS Constantinois, from Algeria. The game, played this Sunday in Algerian territory, saw the Angolans relegated to third in group A, with six points.
The Algerians' goals were scored by Miloud Rebiai, at 41, Tossin Omoyeli, at 45+2, Abdennour Belhocini, at 86, and Dadi Mouaki, at 89.
In the fifth round, next Sunday, the Angolans host Simba, from Tanzania, and close the group stage, against CS Sfaxien, from Tunisia, in Tunisian territory.
CS Constantinois leads the group, with nine, equal with Simba, from Tanzania, who is second, Bravos do Maquis is third, with six, while CS Sfaxien, from Tunisia, is last without any points.
