Oct 12 (Reuters) - Trevali Mining Corp TV.TO
* Trevali announces changes to its board of directors
* Trevali Mining Corp - mike Hoffman has been appointed chairman of board succeeding David Huberman
Oct 12 (Reuters) - Trevali Mining Corp TV.TO
* Trevali announces changes to its board of directors
* Trevali Mining Corp - mike Hoffman has been appointed chairman of board succeeding David Huberman