| 20-F | Registration of securities of foreign private issuers pursuant to section 12(b) or (g) | Nov 15, 2021 |  Open Registration of securities of foreign private issuers pursuant to section 12(b) or (g) in HTML. Open Registration of securities of foreign private issuers pursuant to section 12(b) or (g) in DOC file. Open Registration of securities of foreign private issuers pursuant to section 12(b) or (g) in PDF file. Open Registration of securities of foreign private issuers pursuant to section 12(b) or (g) in XLS file. Open Registration of securities of foreign private issuers pursuant to section 12(b) or (g) in XBLR Viewer. Open Registration of securities of foreign private issuers pursuant to section 12(b) or (g) in XBLR file. |
| NT 20-F | NT 20-F | Oct 29, 2021 | Open NT 20-F in HTML.Open NT 20-F in DOC file.Open NT 20-F in PDF file.Open NT 20-F in XLS file. |
| 20-F/A | Amendment to a previously filed 20-F | Apr 5, 2021 | Open Amendment to a previously filed 20-F in HTML.Open Amendment to a previously filed 20-F in DOC file.Open Amendment to a previously filed 20-F in PDF file.Open Amendment to a previously filed 20-F in XLS file. |