| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 03/16/20 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 5 | |
| 02/28/20 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 80 | |
| 02/21/20 | NT 20-F | Form NT 20-F: Notice under Rule 12b25 of inability to timely file all or part of an annual report of form 20-F | 2 | |
| 12/11/19 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 9 | |
| 11/14/19 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 8 | |
| 10/18/19 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 4 | |
| 10/03/19 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 104 | |
| 08/19/19 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 11 | |
| 07/18/19 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 172 | |
| 06/27/19 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 50 |