The device is said to feature an 8-inch flexible display and rival the Galaxy Note 9 later this year. BOE is reportedly working on four different smartphone designs with two companies. Samsung could be one of those clients, but since the Korean company would probably do its own flexible panels, it's more likely that either Xiaomi or Oppo is the other. The latter has already filed a patent for its own version of a flexible handset.
Other potential partners of BOE are Lenovo and ZTE as they have enperimented with flexible devices in the past.