, the most profitable chartered company, took over a number of smaller prazeiro holdings, and established military outposts to protect its property. The chartered companies built roads and ports to bring their goods to market including a railroad linking present day Zimbabwe with the Mozambican port of Beira.
Due to their unsatisfactory performance and the shift, under the corporatist Estado Novo regime of Oliveira Salazar, towards a stronger Portuguese control of Portuguese empire's economy, the companies' concessions were not renewed when they ran out. This was what happened in 1942 with the Mozambique Company, which however continued to operate in the agricultural and commercial sectors as a corporation, and had already happened in 1929 with the termination of the Niassa Company's concession. In 1951, the Portuguese overseas colonies in Africa were rebranded as Overseas Provinces of Portugal.
As communist and anti-colonial ideologies spread out across Africa, many clandestine political movements were established in support of Mozambican independence. These movements claimed that since policies and development plans were primarily designed by the ruling authorities for the benefit of Mozambique's Portuguese population, little attention was paid to Mozambique's tribal integration and the development of its native communities. According to the official guerrilla statements, this affected a majority of the indigenous population who suffered both state-sponsored discrimination and enormous social pressure. Many felt they had received too little opportunity or resources to upgrade their skills and improve their economic and social situation to a degree comparable to that of the Europeans. Statistically, Mozambique's Portuguese whites were indeed wealthier and more skilled than the black indigenous majority. As a response to the guerrilla movement, the Portuguese government from the 1960s and principally the