Interocean American Shipbuilding has been awarded a $28.2-million contract for the operation and maintenance of a platform to host the Sea-Based X-Band (SBX-1) radar, the Pentagon said last week.

The platform will in based in the Pacific Ocean as part of the Ground-Based Midcourse Defense System (GMD) for long-range missile defense.

The SBX-1 is designed to provide ballistic missile-tracking information to the GMD.

The contract includes four one-year options ad if all are exercised the total contract amount could reach $165.2 million.

Five companies placed bids for the contract, the Defense Department said.