"It is with deep regret that we have been forced to withdraw our World Rally Championship Candidacy from Zulu Rally South Africa," a statement said.
"Regrettably, circumstances beyond our control have given us no option but to take this course of action. Please be assured that we have exhausted every possible avenue to avoid having to make this decision."
Zulu Rally South Africa will continue to run as a round of both the South African National Rally Championship and the FIA African Rally Championship (ARC).
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