General's Office suspended the project tender and annulled the provisional environmental license on claims of unconstitutionality. Specifically, Article 176 of the Federal Constitution states that federal law must determine the conditions of mineral and hydroelectric extraction when these activities take place in indigenous peoples' territories, as is the case for the "Big Bend" (Volta Grande) region. As a result, the electric utility ANEEL canceled the project auction. The same day, the appellate court for Region 1 disenfranchised the Attorney General's suspension, reinstating the project auction at ANEEL. On 26 August 2010, President Luiz Inacio Lula da Silva signed the contract with the Norte Energia at a ceremony in Brasília. Construction was not permitted to begin on the Belo Monte Dam Complex until IBAMA granted the second of the federally required environmental licenses, called the Installation License. The Installation License was only to be granted once Norte Energia shows indisputable proof that it has met 40 socio-environmental mitigation conditions upon which the first provisional environmental license was conditioned. According to an October 2010 IBAMA report, at least 23 conditions had not been met. Reports indicate that on 14 January 2011, a report from staff members of FUNAI, Fundação Nacional do Índio, (National Indian Foundation) had sent a report to IBAMA expressing concerns about the location of the project, its impact on reservation land, and the lack of attention to needs of the indigenous people, especially the Paquiçamba and recommending that FUNAI oppose any license to operate. Despite this report, FUNAI senior management sent IBAMA a letter on 21 January 2011 stating that it did not oppose the issuance of a limited construction license. On 26 January 2011, a partial installation license was granted by IBAMA, authorizing Norte Energia to begin initial construction activities only including forest clearing, the construction of easement areas, and improvement of existing roads for the transport of equipment and machinery. In February 2011, Norte Energía signed contracts with multiple suppliers for the design, production, installation and commissioning of generation and associated equipment. On 1 June 2011, IBAMA granted the full license to construct the dam after studies were carried out and the consortium agreed to pay $1.9 billion in costs to address social and environmental problems. The only remaining license is one to operate the dam's power plant. Federal Court cases On 25 February 2011, the Federal Public Prosecutor filed its 11th lawsuit against Belo Monte Dam,