March 26 (Reuters) - Orvana Minerals Corp ORV.TO :
* ORVANA ANNOUNCES AMENDMENT OF PREPAYMENT AGREEMENT WITH SAMSUNG C&T
* ORVANA MINERALS CORP - AMENDED CERTAIN TERMS OF $12.5 MILLION COPPER CONCENTRATES AND GOLD DORÉ PREPAYMENT AGREEMENT WITH SAMSUNG C&T U.K. LTD
* ORVANA MINERALS CORP - AGREED TO EXTEND GOLD DORÉ SHIPMENTS TO SAMSUNG C&T TO APRIL 2020 AS A RESULT OF AMENDMENT