The world's largest sovereign wealth fund also placed 11 firms under observation for potential future exclusion.

The fund removes companies from its portfolio based on a range of criteria, including the production of tobacco, nuclear arms and products that can contribute to climate change.

In total, Norges Bank has so far excluded 59 companies and placed 11 companies under observation under its so-called product-based coal criterion.

A full list of the firms excluded on Wednesday can be seen here: http://bit.ly/2hSASKg

(Reporting by Terje Solsvik, editing by Alister Doyle)