10.5 years, the six models available (B737-700, A318/A319, CS100/CS300 and E195) averaged fewer than 80 per year. A total of 37 CSeries had been delivered before the Airbus partnership took effect on 1 July 2018 and the aircraft was rebranded A220. Airbus targeted over 100 orders of A220 in 2018 and 3,000 over 20 years, half of the 100- to 150-seat market, and needed a supply chain cost reduction over 10%. Airbus then sought to reduce costs from all suppliers, including Bombardier, wing builder Short Brothers and engine manufacturer Pratt & Whitney. It has reportedly pushed its suppliers to lower their prices by 20% for more volume, or to switch them, towards 150 yearly deliveries. Supplier costs could be cut by 30–40% by Airbus's market power, as a 10% procurement costs decrease would add six gross margin points to the programme. Airbus waited to win several new orders before increasing pressure on suppliers and catching their attention in 2019 with the sale of 135 A220s to U.S. airlines, including a follow-up order from Delta. In mid-2018, Airbus CFO predicted a production potential of more than 100 A220 per year. Delivery rates continued to climb with the new brand, reaching a total output of 33 in 2018, and then rising to 48 A220 in 2019. The market share was split between 80% A220-300 (former CS300) and 20% A220-100 (former CS100). The groundbreaking ceremony for the $300 million final assembly line (FAL) at the Airbus Mobile plant in Mobile, Alabama was held on 16 January 2019; on this occasion Airbus confirmed its confidence that there is enough demand to justify two assembly sites and that the airliner can be profitable. On 5 August 2019, production started at the Mobile facility, which was not due to be finished until 2020; work started early to ensure that the first delivery schedule could be met. The removal of Bombardier's financial constraints in February 2020 gave Airbus greater latitude for further investment in the programme, which will be needed to ramp up production rates, though this will push back the break-even point of the programme to the mid-2020s. The program cost was US$ 7 billion. On 2 June 2020, the first A220 produced in Alabama completed its first flight. By that date, production of the first aircraft for JetBlue Airways had also started. The first US-assembled A220 aircraft, an A220-300, was delivered to Delta on 22