the livelihoods of the population, provides the regional and local development by creating large scale, and is marketed in different Brazilian regions and abroad. The herd area is highlighted by its superior quality, being one of the most important cattle herds of the state, a result arising from the use of advanced technology in the selection and fertilization. It has also herds of pigs, horses, sheep and poultry The fishing sector also has a key role in local economic base by exporting its surplus for the entire north and northeast. Agriculture is diversified, with production cereals, pulses and oilseeds such as corn, rice and beans, fruits such as bananas and acai, and logging Secondary sector Through the Industrial Development Company of Para - CDI, was installed at the end of the eighties, in an area of 1,300 hectares, the industrial district of Maraba - DIM, to create the base of a steel pole targeting the Carajas iron ore, exploited by the mining company Vale. Metallurgical Industries and intense livestock activity, accounted for a large environmental devastation in the region. The activity of the steel industry requires large amounts of coal, leading to a devastation of native forests. As a result of public pressure the industries were forced to change its production model, investing in reforestation and charcoal production through the babassu coconut palm. Besides, to have more than 200 industries, and the steel (pig iron) most important, second is the timber industry and the manufacture of tiles and bricks. The city's economy also relies on the production of manganese and Agribusiness. In Maraba, Agribusiness works with pulp processing, cassava flour, rice processing, milk and palm. The installation of steel plant came boost the local economy even more, forming a metal pole-mechanical, with a view to verticalize the local mineral production. There are still projects that seen during and after the installation of steel works, among them: The gas pipeline Açailândia-Maraba and construction of new port city. Tertiary sector The trade and services sector also has its share of contribution. Maraba has approximately 5 000 outlets divided between trade formed by micro, small, medium and large businesses and services, Hospital, Financial, Education, Construction and Public Utilities. It is a very powerful and comes with high rates of growth. This is because the strategy of state government, to decentralize services from the state capital, Belém. The city is increasingly gaining representation in