Brazil's Açu port in Rio de Janeiro state is projected to attract US$40bn in investments, according to news service Agência Estado.
Brazilian business tycoon Eike Batista, owner of the port's parent company EBX, is trying to attract new investments from abroad.
Projects under consideration include a foreign auto plant to be installed at the port complex, and a factory to build products for US-based tech firm Apple.
EBX, along with its logistics arm LLX Logistica (Bovespa: LLXL3) and miner MMX (Bovespa: MMXM3), also aims to attract foreign companies to produce steel at the port.
The Açu port complex is expected to be completed by the end of 2012.