 The bids for the P-51 and P-52 platforms were then the first in the country to require a minimum domestic content.The requirement was heavily criticized, on the grounds that it would increase the costs of Petrobras, but Rousseff defended the country's ability to produce ships and platforms, stating that the nationalization rates of the platforms, which varied between 15% and 18% rose to more than 60% after the requirement.Lula acknowledged that, from the perspective of the company, the costs did in fact go higher, but that Petrobras should not only target the immediate costs, but also the strengthening of national science and technologies.