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Disclosure - Accounts receivable, net link:presentationLink link:calculationLink link:definitionLink 999010 - Disclosure - Inventories, net link:presentationLink link:calculationLink link:definitionLink 999011 - Disclosure - Other assets link:presentationLink link:calculationLink link:definitionLink 999012 - Disclosure - Property and equipment, net link:presentationLink link:calculationLink link:definitionLink 999013 - Disclosure - Intangible assets, net link:presentationLink link:calculationLink link:definitionLink 999014 - Disclosure - Leases link:presentationLink link:calculationLink link:definitionLink 999015 - Disclosure - Accruals and other payables link:presentationLink link:calculationLink link:definitionLink 999016 - Disclosure - Shareholders’ Equity link:presentationLink link:calculationLink link:definitionLink 999017 - Disclosure - Related party transactions and balances link:presentationLink link:calculationLink link:definitionLink 999018 - Disclosure - Segment Reporting link:presentationLink link:calculationLink link:definitionLink 999019 - 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Disclosure - Schedule of accounts receivable, net (Details) link:presentationLink link:calculationLink link:definitionLink 999046 - Disclosure - Schedule of movements of allowance for expected credit loss (Details) link:presentationLink link:calculationLink link:definitionLink 999047 - Disclosure - Schedule of inventories, net (Details) link:presentationLink link:calculationLink link:definitionLink 999048 - Disclosure - Schedule of allowance for stock obsolescence (Details) link:presentationLink link:calculationLink link:definitionLink 999049 - Disclosure - Inventories, net (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999050 - Disclosure - Schedule of other assets (Details) link:presentationLink link:calculationLink link:definitionLink 999051 - Disclosure - Schedule of property and equipment, net (Details) link:presentationLink link:calculationLink link:definitionLink 999052 - Disclosure - Property and equipment, net (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999053 - 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Disclosure - Schedule of unvested restricted stock activity (Details) link:presentationLink link:calculationLink link:definitionLink 999076 - Disclosure - Share-based compensation (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999077 - Disclosure - Schedule of earnings per share, basic and diluted (Details) link:presentationLink link:calculationLink link:definitionLink 999078 - Disclosure - Basic and diluted loss per share (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999079 - Disclosure - Contingencies and commitment (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999080 - Disclosure - Subsequent events (Details Narrative) link:presentationLink link:calculationLink link:definitionLink