STX Europe has been awarded contracts with Siem Offshore for design and building of two Platform Supply Vessels. The vessels are designed by STX Europe in Ålesund and will be built at STX Europe in Brazil. The vessels are scheduled for delivery in Q2 2012 and Q2 2013. The total value of the contracts amounts to approximately $155.7m. The contracts are signed with Siem Consub SA in Brazil, a subsidiary of Siem Offshore. Roy Reite, President of STX Europe's Offshore & Specialized Vessels business area…