section_path: Economy
section_name: Economy
paragraph_text: Economy
  
  Many valuable products now exported from the Amazon by way of Belém are aluminium, iron ore, and other metals, nuts (chiefly Brazil nuts), pineapples, cassava, jute, wood veneers, and hardwoods. Japanese immigration after the 1930s was an important factor in developing jute and black pepper, notably at Tomé-Açu, just south of Belém, and near Santarém. Marajó Island, the largest fluvial island in the world, which lies just across the Rio Pará from Belém, has some livestock grazing. Electricity is provided by the massive Tucuruí Dam, some 300 km southwest of the city on the Tocantins River.