[1/2] A general view of ADNOC headquarters in Abu Dhabi, United Arab Emirates May 29, 2019. REUTERS/Christopher Pike/File PhotoJune 20 (Reuters) - Abu Dhabi National Oil Company (ADNOC) has approached German plastics and chemicals maker Covestro AG (1COV.DE) with a takeover proposal worth more than 10 billion euros ($10.9 billion), two people familiar with the matter said on Tuesday. The OMV deal would indirectly also increase ADNOC's holding in both European petrochemicals maker Borealis and Abu Dhabi-listed petrochemicals company Borouge (BOROUGE.AD). SABIC (2020.SE), also of Saudi Arabia, in the same year purchased a stake of almost 25% in Swiss chemicals maker Clariant (CLN.S). Thanks to a 2007 deal to buy GE's plastics unit, SABIC competes with Covestro in polycarbonate plastics.

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Persons: Christopher Pike, Abu Dhabi's, ADNOC, Sultan, Jaber, Lanxess, SABIC, Ludwig Burger, Patricia Weiss, Christoph Steitz, Hadeel Al, Greg Roumeliotis, Louise Heavens, Sharon Singleton, Elisa Martinuzzi, Alexandra Hudson Organizations: United, United Arab Emirates, REUTERS, Abu Dhabi National Oil Company, Covestro, Alexandra Hudson Our, Thomson Locations: Abu Dhabi, United Arab, Covestro, Europe, Saudi Aramco, Saudi Arabia, Swiss, Frankfurt, Hadeel Al Sayegh, Dubai