Feb 18 (Reuters) - Star Diamond Corp DIAM.TO :
* STAR DIAMOND PROVIDES UPDATE REGARDING OPTION TO JOINT VENTURE AGREEMENT WITH RIO TINTO EXPLORATION CANADA INC.
* STAR DIAMOND CORP - NOTIFIED RTEC THAT PURPORTED EXERCISE IN NOVEMBER 2019 OF ITS FOUR OPTIONS DID NOT COMPLY WITH TERMS OF AGREEMENT
* STAR DIAMOND - NOTIFIED RTEC THAT OPERATIONS, CLAIMED EXPENDITURES IN RELATION TO STAR - ORION SOUTH DIAMOND PROJECT DID NOT COMPLY WITH AGREEMENT