| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 12/31/18 | 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 | 3 | |
| 11/29/18 | D | Form D: Notice of Exempt Offering of Securities | 6 | |
| 11/15/18 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 122 | |
| 11/09/18 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 6 | |
| 11/06/18 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 6 | |
| 11/06/18 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 4 | |
| 11/06/18 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 6 | |
| 07/17/18 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 30 | |
| 07/12/18 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 8 | |
| 05/03/18 | 6-K | Form 6-K: Report of foreign issuer [Rules 13a-16 and 15d-16] | 10 |