Why did Boeing choose GE to build the 747-8’s exclusive engine?

Pratt & Whitney and Rolls-Royce weren't part of the 747-8 program, despite a long history with the 'Queen of the Skies'.

Why can’t the Boeing 747-8 be powered by any other engine type?

The final jumbo jet is exclusively powered by GEnx-2B engines, and was not built for Rolls-Royce or Pratt & Whitney turbofans ...
Aviation Week

General Electric Ships Revised 747-8 Engine For Tests

General Electric is transporting a revised configuration GEnx-2B engine to Victorville, Calif., for final flight tests on the company’s 747 flying testbed as Boeing builds up toward first flight of ...
The Business Times

CAAS, EDB ink pact with GE Aerospace to co-develop AI and propulsion technologies

GE Aerospace will expand its Singapore presence beyond maintenance, repair and overhaul under a new R&D partnership Read more ...