EBRD is selling 2.85 million shares, or 2.9 percent, in the state-run Azoty. The book-building process is expected to close by 1200 GMT or earlier, the sources said.

Shares in Azoty fell 8.5 percent to 63.66 zlotys per share at 0832 BST.

(Reporting by Agnieszka Barteczko; Editing by Lidia Kelly)