In October 2025, Griñó Ecològic filed a criminal complaint against journalist Rafa Marrasé, filmmaker Christophe Sion, Gerard Jara, Magdalena Barceló, Fundació Jara Barceló and the environmental organisation GEPEC-EdC. The complaint includes allegations related to procedural fraud, market manipulation and market abuse.

In April 2026, Rafa Marrasé, Christophe Sion, Gerard Jara and Magdalena Barceló received court summonses in connection with the criminal proceedings.

The complaint is linked to the investigative documentary Insostenible, rere la brossa, directed by Christophe Sion and based on investigative work by journalist Rafa Marrasé. The documentary examines the production, management, transport and traceability of waste, including cross-border waste movements within the European Union and waste handling at the Port of Tarragona. Griñó Ecològic is one of the companies whose activities are examined within this broader investigation.

Those affected by the complaint have publicly raised concerns that the proceedings may have a chilling effect on investigative journalism, environmental advocacy and public-interest scrutiny of corporate activity. The case has been described by several organisations and media outlets as bearing the hallmarks of a SLAPP.