In October 2013, the union representing PETREX employees, Sindicato de Trabajadores de la Empresa PETREX S.A. (SIGETRAPETREX), affiliated to the Central Autónoma de Trabajadores del Perú (CATP), entered into the direct negotiations phase of the collective bargaining process and requested the accounting documents needed to know the situation in terms of profits and losses. By April 2014, however, the Administrative Labour Authority had still not issued the relevant report.
At a meeting held in April 2014 between SIGETRAPETREX and the company, the latter refused to accept the clauses presented by the workers. The managers knew that the union did not have access to the financial statements and other accounts during the negotiation. PETREX is part of the SAIPEM Group, made up of PETREX S.A. and the Italian ENI Group.