increase of dynamism of the mineral sector also relieved to the city the biggest participation in VAIN of the industrial sector in the state of Par surpassing the cities of Barcarena and Belm, that only 11.4% had presented and 10.7% respectively of relative participation, values these well lesser ones when compared with 20.4% and 21% in the same order, registered in 1999, this associate to a process of industrial desconcentrao can that has for prominence the appearance of other cities blunting as business-oriented chances (figua-4). Figure 4? Participation of the five bigger cities in the VAIN one of the Industry? Par, 1999 and 2008 Elaboration: IDESP? Management of Studies and Socioeconmicas Research (2010) the process of desconcentrao of the industrial sector of the capital is more evident when we compare the complete series (table-3), where it is possible to extract the evolution of the participation of the city of Belm in the total added in the sector for the five greaters, in 1999 the participation it exceeds the edge of 30% and in little more than 10 years this value diminishes significantly for 15%. Table Ranking of the Cities with bigger participation in the VAIN one of the industrial sector, between 1999 and 2008 Elaboration: IDESP? Management of Studies and Socioeconmicas Research (2010) Source: IDESP, IBGE the process of desconcentrao of the industrial production in the city of Belm can be associated to some factors, and as the analyses take as reference only the VAIN one of the sector we cannot advance in this quarrel. On the other hand cities as Parauapebas, offer an inverse interpretation of the phenomenon, in view of that its participation between the five greaters was of 28,87% in 1999 and presenting a contribution above of 40% in 2008, what it discloses one strong trend in assuming the leadership of the sector for the next years.