Boeing (NYSE: BA) and TUI Group, the world’s number one tourism business, finalized an order today at the 2016 Farnborough International Airshow for 10 737 MAX 8s and one 787-9 Dreamliner. The order, valued at $1.4 billion at current list prices, also includes an option for one additional 787-9.

With today’s order, TUI Group now has three unfilled orders for 787-9s and 70 for the 737 MAX.

“We are committed to investing in our aircraft fleet in order to keep improving our customer’s experience and to grow ahead of the market,” said David Burling, Member of the Executive Board and responsible for TUI Group Airlines. “This includes the expansion of our long haul holiday programme and providing more choice of flight times and durations to new destinations. Our customers tell us how much they appreciate the investment we are making in new aircraft, so we’re pleased to make flying with TUI an even more enjoyable experience with this latest order.”

TUI Group last year announced its five year sustainability strategy, ‘Better Holidays Better World 2015-2020,’ built around three core pillars to help shape the future of sustainable tourism. As one pillar, TUI aims to operate Europe’s most carbon efficient airlines and reduce the carbon intensity of its operations by a further 10% by 2020.

“With the 737 MAX, we will be able carry our short-haul customers further, in greater comfort, more efficiently and with an even lower environmental impact. The 737 MAX will contribute significantly towards fulfilling our commitment to further reducing the carbon intensity of our operations,” added Burling.

Boeing press release