(Bloomberg) -- Abu Dhabi National Oil Co. indicated it’s prepared to boost its informal offer for Covestro AG to about €11.6 billion ($12.7 billion) on the condition the German chemicals group agrees to enter formal talks, people with knowledge of the matter said.Most Read from BloombergRussia Calls Emergency Key Rate Meeting as Ruble PlungesOutsider Milei Upends Argentina’s Election With Primary WinZuckerberg Says ‘Time to Move On’ From Musk Cage FightUS Steel Soars After It Rejects $7.25 Billi