Rio de Janeiro, Brazil — Authorities in Brazil said Friday they are probing Chinese auto giant BYD and one of its contractors for suspected “trafficking” of Chinese workers building a factory in the South American country. Federal prosecutors in Brazil are weighing possible criminal action after labor inspectors found 163 Chinese workers “in slave-like conditions” at the construction site in the northeast state of Bahia, a government statement said. The workers, employed by BYD contractor Jinjiang Open Engineering, were viewed as “victims of international trafficking for the purpose of labor exploitation,” said the statement. A Chinese foreign ministry spokeswoman in Beijing