Sept 21 (Reuters) - Sherritt International Corp S.TO
* Sherritt provides update on the impact of Hurricane Irma on operations
* Sherritt International Corp - reiterates production guidance for 2017
* Sherritt International Corp - Hurricane Irma has not had any material impact on expected 2017 production emanating from Cuba
* SSherritt International Corp - co also confirmed that none of its facilities incurred more than minimal damage
* Sherritt International Corp - activities at its Moa Joint Venture and Oil and Gas and Power facilities in Cuba have been restored to normal capacity