Contracts for dredging and offshore works are diverse. Moreover, increasing financial and/or managerial constraints require contracting parties to change the apportionment of commercial risk. Contractors and suppliers have to adapt to contracts that are chosen unilaterally by the owner. Turnkey and engineering, procurement, and construction (EPC) contracts are becoming more common in the industry and bring their own benefits and challenges.
Unexpected costs resulting from fluctuations in prices for raw materials,fuel and labour can add extra financial risks for dredging contractors and clients.