FARNBOROUGH – Boeing has signed a massive agreement with an unidentified customer today for an additional 100 737MAX aircraft at list prices of $11.7 billion.

READ MORE: Farnborough: Boeing Announces Commitments for 73 737 MAXs

The wording of “additional” would mean that they have previously ordered some 737MAXs that have not been disclosed either yet. The deal is yet to be finalized.

“We are honored that so many customers continue to see the unmatched value of the 737 MAX aeroplane family and are coming back to place repeat orders. This is a significant commitment that reflects the strong demand for the MAX and the health of the single-aisle market,” said Ihssane Mounir, senior vice president of Commercial Sales & Marketing for The Boeing Company.  

The 737MAX has currently accumulated around 4,700 orders from over 100 different customers around the globe.

Boeing has predicted that in the single-aisle air market, that around 31,360 aircraft will be needed over the next 20 years, representing a 6% increase over last year’s forecast due to the success of low-cost carriers and big requirements for growth and replacement.

READ MORE: Farnborough: VietJet Orders 100 Boeing 737 MAX Aircraft

Day 4 started out as a day of undisclosed orders. With the carrier securing the orders but not announcing the customers, a lot of the media have been speculating into who the carrier actually will be. No doubt that in due time, the customer will be announced at either an airshow or over the next few months.

Even still, another $11.7 billion commitment to the 737MAX is great news for Boeing and they will be looking to finalize that deal even further so then the revenues become more guaranteed. All-in-all, it is good news for Boeing and this commitment would not have been made without knowing that it will be finalized.