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A Brazilian court has suspended the sale of two petrochemical units by state-run oil company Petrobras due to alleged competition breaches.
The public interest suit, filed by oil union members, claims Petrobras is selling the assets without a competitive bidding process.
"Petrobras is taking legal measures to protect [our] interests and those of investors," the Rio de Janeiro-based company said.
The order follows a raft of other court injunctions blocking the sale of Petrobras assets due to alleged competition breaches.
Among them is a suspension of the sale of the Tartaruga Verde and Baúna offshore fields to Karoon Gas Australia.
Racked by a corruption scandal, Petrobras is selling non-core assets to focus on ultra-deepwater production off Brazil's southeast coast.
The company has received US$13.6bn from divestments over the past two years and plans to raise a further US$21bn this year and next.