JOINT FILING AGREEMENT
EXHIBIT 99.1
Each of the undersigned hereby agrees that this Amendment No. 23 to the statement on Schedule 13D is being filed with the Securities and Exchange Commission on behalf of each of the undersigned pursuant to Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended.
Date: June 19, 2020
| Glencore AG | |||
| By: | /s/ Xxxxxxx Xxxxx | ||
| Name: | Xxxxxxx Xxxxx | ||
| Title: | Director | ||
| By: | /s/ Xxxxxx Xxxxxxx | ||
| Name: | Xxxxxx Xxxxxxx | ||
| Title: | Director | ||
| Glencore International AG | |||
| By: | /s/ Xxxxxx Xxxxxxx | ||
| Name: | Xxxxxx Xxxxxxx | ||
| Title: | Officer | ||
| By: | /s/ Xxxx Xxxxxx | ||
| Name: | Xxxx Xxxxxx | ||
| Title: | Director | ||
| Glencore plc | |||
| By: | /s/ Xxxx Xxxxxxxxxx | ||
| Name: | Xxxx Xxxxxxxxxx | ||
| Title: | CEO | ||
| By: | /s/ Xxxx Xxxxxx | ||
| Name: | Xxxx Xxxxxx | ||
| Title: | Company Secretary | ||
