JOINT FILING AGREEMENT
EXHIBIT 1
The undersigned hereby agree to the joint filing of the Schedule 13D to which this Agreement is attached.
| HECLA MINING COMPANY | ||
| /s/ Xxxxx X. Xxxxxx | ||
| Name: | Xxxxx X. Xxxxxx | |
| Title: | Vice President & General Counsel | |
| Dated: | April 3, 0000 | |
| XXX XXXXXXXX, INC. | ||
| /s/ Xxxxx X. Xxxxxx | ||
| Name: | Xxxxx X. Xxxxxx | |
| Title: | Vice President | |
| Dated: | April 3, 2015 | |
