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                Form 20-F for the year ended December 31, 2019 (XBRL ZIP version)
                    (683KB)
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                Form 20-F for the year ended December 31, 2019
                    (1,433KB)
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                Form 6-K, Translation of FY2019 3Q Quarterly Financial Statement
                    (496KB)
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                Form 6-K, Translation of FY2019 2Q Quarterly Financial Statement
                    (310KB)
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                Form 6-K, Translation of FY2019 1Q Quarterly Financial Statement
                    (247KB)
         
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                Form 20-F for the year ended December 31, 2017 (XBRL ZIP version)
                    (648KB)
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                Form 20-F for the year ended December 31, 2018
                    (999KB)
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                Form 6-K, Translation of FY2018 3Q Quarterly Financial Statement
                    (410KB)
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                Form 6-K, Translation of FY2018 2Q Quarterly Financial Statement
                    (318KB)
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                Form 6-K, Translation of FY2018 1Q Quarterly Financial Statement
                    (908KB)
         
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                Form 20-F for the year ended December 31, 2017 (Amendment No. 1)
                    (183KB)
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                Form 20-F for the year ended December 31, 2017
                    (836KB)
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                Form 20-F for the year ended December 31, 2017 (XBRL ZIP version)
                    (517KB)
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                Form 6-K, Translation of FY2017 3Q Quarterly Financial Statement
                    (906KB)
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                Form 6-K, Translation of FY2017 2Q Quarterly Financial Statement
                    (819KB)
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                Form 6-K, Translation of FY2017 1Q Quarterly Financial Statement
                    (189KB)