Abu Dhabi's ADNOC has struck a deal to buy German chemicals maker Covestro for 14.7 billion euros ($16.3 billion), including debt, in the energy giant's biggest ever acquisition.

Abu Dhabi’s national oil company has agreed a €14.7bn deal to buy German chemicals group Covestro in one of the largest European takeovers this year. Adnoc, which has been pursuing Covestro since last year, has offered €62 per share for the German company. It will also inject €1.17bn of new money into the chemicals group.

Adnoc and Covestro agreed on a tie-up valuing the chemicals maker at $13.05 billion in a deal that will help the Abu Dhabi energy giant diversify its portfolio beyond its core oil business.