3, 2008 that it plans to sell $6.5 billion worth of arms to Taiwan ending the freeze of arms sales to Taiwan. Amongst other things, the plans include $2.532 billion worth of 30 AH-64D Apache Longbow Block III Attack helicopters with night-vision sensors, radar, 173 Stinger Block I air-to-air missiles and 1000 AGM-114L Hellfire missiles. and 182 Javelin missiles will also be available with 20 Javelin command launchers and is estimated to cost $47 million. On January 29, 2010, US Government announced 5 notifications to US Congress for arms sales to Taiwan. Of the total 6.392 billion US dollars in the 5 announcements, ROC Army will receive 60 UH-60M and other related things for cost of 3.1 Billion. Helicopters In July 2007 it was reported that the ROC Army would request the purchase of 30 AH-64E Apache Guardian attack helicopters from the US in the 2008 defence budget. In October 2015 it was announced that 9 AH-64E had been grounded due to oxidation of components in the helicopters' tail rotor gearboxes and comprehensive safety checks were made on all Apaches. The 2008 defense budget also listed a request for 60 UH-60M Black Hawk helicopters as a partial replacement for the UH-1Hs currently in service. Main battle tanks As of 2019, the ROC army has 480 M60A3s, 450 CM11s (modified M48 turrets mated to M60 chassis), and 250 CM12s (CM-11 turrets mated to M48 hulls). The design and technology used in the tanks date back to the 1940s and 1950s, including their 105mm rifled gun and utilizing traditional steel armor plating rather than composite materials used in modern armored fighting vehicles. It is expected that the majority of the ROC Army’s armored units would continue to be equipped with legacy tanks in upgraded form after the army acquires the newer modern tanks. As of 2015, some CM11 tanks are observed to be upgraded with explosive reactive armor around the turret and hull. In October 2017, Taiwan announced an upgrade program for 450 M60A3s consisting of replacing the main gun with a new 120 mm weapon, as well as upgrading the ballistics computer, turret hydraulics, and other systems. Testing and evaluation are expected to be completed in 2019 and application of new features to start in 2020. However, in July 2018 the Ministry of National Defense renewed its interest in acquiring Abrams, and had set aside US$990 million to purchase 108 M1A2s