MUSCAT – French cosmetics giant L’Oréal is expected to announce a minority investment in Amouage, the biggest perfume success story on the Arabian Peninsula backed by the Sultanate of Oman, senior industry sources said. In April, Bloomberg reported that L’Oréal was in talks to buy a minority stake in a transaction that could value the high-end Omani perfume maker at around €3 billion. “The deal has already been signed and should be announced before the end of the year,” one senior industry source told Miss Tweed on condition of anonymity. Amouage declined to comment. L’Oréal did not reply to requests for comment.