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| Form | Description | Date | Format |
|---|---|---|---|
| SCHEDULE 13D/A | Schedule filed to report acquisition of beneficial ownership of more than 5% of a class of equity securities - amendment |   | |
| SCHEDULE 13D/A | Schedule filed to report acquisition of beneficial ownership of more than 5% of a class of equity securities - amendment | | |
| 6-K | Report of foreign issuer [Rules 13a-16 and 15d-16] | | |
| 6-K | Report of foreign issuer [Rules 13a-16 and 15d-16] | | |
| 6-K | Report of foreign issuer [Rules 13a-16 and 15d-16] | | |
| 6-K | Report of foreign issuer [Rules 13a-16 and 15d-16] | | |
| 6-K | Report of foreign issuer [Rules 13a-16 and 15d-16] | | |
| 6-K | Report of foreign issuer [Rules 13a-16 and 15d-16] | | |
| SCHEDULE 13D/A | Schedule filed to report acquisition of beneficial ownership of more than 5% of a class of equity securities - amendment | | |
| SCHEDULE 13D/A | Schedule filed to report acquisition of beneficial ownership of more than 5% of a class of equity securities - amendment | |
