Abu Dhabi Ship Building (ADSB) has signed a contract with the UAE Armed Forces to complete major combat system upgrades for a series of six Missile patrol Boats in the UAE Navy's existing fleet. Valued at more than $50 million, the contract will significantly improve the capabilities of these vessels by integrating and installing new, state-of-the-art combat equipment as well as substantially upgrading the existing shipboard systems. The UAE Navy chose ADSB as the prime contractor for this project, which is known as Tarif-45. ADSB will have full responsibility for the complex upgrades that will be performed at the company's Abu Dhabi facilities.