In Peru, an investigation was presented to parliament against the US mining firm Yanacocha for tax evasion. According to the document presented, the company reported unnecesary and non-existent costs of up to 5 billion dollars, which lowered their income tax by 2 billion dollars. Members of congress say that the investigation should be performed by the congressional Oversight Commission, because it may implicate officials in the National Superintendency of Tax Administration (Sunat), who they propose to call to testify. teleSUR.