production is to be ramped up, reaching ten per month in mirabel and four per month in alabama by the mid-2020s. the market share is split between 80% -300s and 20% -100s. the groundbreaking ceremony for the $300 million final assembly line 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 aircraft can be made profitable. on 5 august 2019, production started at mobile. the first a220 from the new line is to be delivered to delta in the third quarter of 2020. the mobile facility will not be finished until 2020, but work started early to ensure that the delivery schedule for delta can be met. as of 1 june 2019, the cseries aircraft limited partnership was renamed to airbus canada limited partnership and adopted the airbus logo as its sole visual identity.