Boeing decided to assemble the 777X in Everett in 2014 after winning $8.7 billion in state tax incentives through 2040 and getting labor unions to agree to contract concessions. The new Boeing 777X Composite Wing Center is the biggest building in the world. Boeing will produce the largest carbon fiber airplane wings in history in the billion-dollar facility. The Center took 14 months and $1 billion in investment.
Boeing says it has received 320 orders and commitments so far for the wide-body plane, which can accommodate up to 425 passengers in its 777-9 configuration. The first delivery is targeted for 2020.