The first stage of the sale of the Brazilian electric power company involves the largest of its three plants, the 1,540MW Porto Primavera.
Measures announced after the failure to approve pension reforms spark hefty criticism from political leaders.
Although Odebrecht reached leniency agreements with authorities in Brazil and a few other countries, creditors worry about its inability to reach similar deals elsewhere, and the company is facing difficulties in securing a credit line to service its short-term debt obligations.
As part of compensation measures for the 2015 catastrophe, Brazil's Samarco will provide funding for sanitation and solid waste collection.
Compas is accusing fellow port operator SPRC of a disinformation campaign to block its US$93mn project.