This type of concession, which is applied in the majority of Latin American countries, for example, in Brazil, Mexico and Peru, has been criticized for its flexibility and because it tends to favour the mining authority.
这种特许权在大多数拉丁美洲国家采用，例如在巴西、墨西哥和秘鲁，因其过于灵活而且往往有利于采矿管理机构而受到批评。