Wilson Sons Limited ("Wilson Sons"), a public held company traded at BM&FBovespa under the ticker WSON33, hereby announces to all its shareholders that, through its subsidiary Wilson Sons Estaleiros Ltda, has signed a contract with Oceanpact Serviços Marítimos Ltda ("Oceanpact") for the construction of four Oil Spill Recovery Vessels ("OSRVs"), with recovered oil storage capacity of 1,050 m³, length of 67 meters, and beam of 14 meters. The contract shall be effective after the payment of the first installment of each vessel.

For the construction of the four vessels, Oceanpact will pay approximately BRL 333 million (three hundred and thirty three million brazilian reais). The vessels, which are expected to be delivered by 2016, will be built in Wilson Sons' Shipyard complex, in Guarujá, São Paulo.

About Wilson Sons
Wilson Sons, through its subsidiaries, is one of Brazil's largest providers of integrated port and maritime logistics and supply chain solutions. With a business track record of 175 years, the Company has developed an extensive national network and provides a comprehensive set of services related to domestic and international trade, as well as to the oil and gas industry. Its principal operating activities are divided into the following lines of business: Container Terminals, Oil & Gas Terminals, Towage, Shipyards, Logistics, and Shipping Agency.www.wilsonsons.com.br/ir


Rio de Janeiro, December 19, 2013.

Felipe Gutterres Ramella
Legal Representative and Investor Relations

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