During presentation of the company Norte Energia (dealership of construction of the Belo Monte hydroelectric plant) held in 11 August Construction Expo at the fair 2011, in São Paulo, eight activists disrupted, eight times, the presentation of the engineer Luiz Rufato on the works of the plant.
In a coordinated manner, protesters rose, one at a time, at scheduled intervals from 5 minutes and used his voice to expose the speaker and ask questions about the company and the environmental impacts of the work. The speech time of each was limited only by the time they were able to resist expulsion performed with the use of force by the security fair, which increased in number over the 35 minute duration of action, showed to be very tense before the lack of which member of the audience with 150 Congressmen would next cause interruption.