00000001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 00000002 - Statement - Consolidated Balance Sheets link:presentationLink link:calculationLink link:definitionLink 00000003 - Statement - Consolidated Balance Sheets (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 00000004 - Statement - Consolidated Statements of Operations and Comprehensive Loss link:presentationLink link:calculationLink link:definitionLink 00000005 - Statement - Consolidated Statements of Changes in Shareholders' Deficit link:presentationLink link:calculationLink link:definitionLink 00000006 - Statement - Consolidated Statements of Cash Flows link:presentationLink link:calculationLink link:definitionLink 999014 - Disclosure - Organization and business overview link:presentationLink link:calculationLink link:definitionLink 999015 - Disclosure - Summary of significant accounting policies link:presentationLink link:calculationLink link:definitionLink 999016 - Disclosure - Accounts receivable, net link:presentationLink link:calculationLink link:definitionLink 999017 - Disclosure - Inventories, net link:presentationLink link:calculationLink link:definitionLink 999018 - Disclosure - Other current assets link:presentationLink link:calculationLink link:definitionLink 999019 - Disclosure - Intangible assets, net link:presentationLink link:calculationLink link:definitionLink 999020 - Disclosure - Leases link:presentationLink link:calculationLink link:definitionLink 999021 - Disclosure - Accruals and other current liabilities link:presentationLink link:calculationLink link:definitionLink 999022 - Disclosure - Equity link:presentationLink link:calculationLink link:definitionLink 999023 - Disclosure - Related party transactions and balances link:presentationLink link:calculationLink link:definitionLink 999024 - Disclosure - Revenue link:presentationLink link:calculationLink link:definitionLink 999025 - Disclosure - Other expenses link:presentationLink link:calculationLink link:definitionLink 999026 - Disclosure - Income taxes link:presentationLink link:calculationLink link:definitionLink 999027 - Disclosure - Other income (expense), net link:presentationLink link:calculationLink link:definitionLink 999028 - Disclosure - Commitment and Contingencies link:presentationLink link:calculationLink link:definitionLink 999029 - Disclosure - Subsequent events link:presentationLink link:calculationLink link:definitionLink 999030 - Disclosure - Change in prior year presentation link:presentationLink link:calculationLink link:definitionLink 999031 - Disclosure - Summary of significant accounting policies (Policies) link:presentationLink link:calculationLink link:definitionLink 999032 - Disclosure - Organization and business overview (Tables) link:presentationLink link:calculationLink link:definitionLink 999033 - Disclosure - Summary of significant accounting policies (Tables) link:presentationLink link:calculationLink link:definitionLink 999034 - Disclosure - Accounts receivable, net (Tables) link:presentationLink link:calculationLink link:definitionLink 999035 - 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Other income (expense), net (Tables) link:presentationLink link:calculationLink link:definitionLink 999045 - Disclosure - Change in prior year presentation (Tables) link:presentationLink link:calculationLink link:definitionLink 999046 - Disclosure - Schedule of consolidated financial statements (Details) link:presentationLink link:calculationLink link:definitionLink 999047 - Disclosure - Organization and business overview (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999048 - Disclosure - Schedule of property plant and equipment estimated useful lives (Details) link:presentationLink link:calculationLink link:definitionLink 999049 - Disclosure - Schedule of estimated useful life of intangible assets (Details) link:presentationLink link:calculationLink link:definitionLink 999050 - Disclosure - Summary of significant accounting policies (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999051 - Disclosure - Schedule of accounts receivable, net (Details) link:presentationLink link:calculationLink link:definitionLink 999052 - Disclosure - Schedule of movement in allowance for credit losses (Details) link:presentationLink link:calculationLink link:definitionLink 999053 - Disclosure - Schedule of inventories, net (Details) link:presentationLink link:calculationLink link:definitionLink 999054 - Disclosure - Schedule of movement in provision for stock obsolescence (Details) link:presentationLink link:calculationLink link:definitionLink 999055 - Disclosure - Schedule of other current assets (Details) link:presentationLink link:calculationLink link:definitionLink 999056 - Disclosure - Other current assets (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999057 - Disclosure - Schedule of intangible assets, net (Details) link:presentationLink link:calculationLink link:definitionLink 999058 - Disclosure - Intangible assets, net (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999059 - Disclosure - Schedule of non-cancellable lease contracts (Details) link:presentationLink link:calculationLink link:definitionLink 999060 - Disclosure - Schedule of consolidated balance sheet (Details) link:presentationLink link:calculationLink link:definitionLink 999061 - Disclosure - Schedule of consolidated statements of operations (Details) link:presentationLink link:calculationLink link:definitionLink 999062 - Disclosure - Schedule of future minimum lease payments under non-cancellable operating lease (Details) link:presentationLink link:calculationLink link:definitionLink 999063 - Disclosure - Schedule of other supplemental information of lease (Details) link:presentationLink link:calculationLink link:definitionLink 999064 - Disclosure - Leases (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999065 - Disclosure - Schedule of accruals and other current liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 999066 - Disclosure - Schedule of warrant valuation assumptions (Details) link:presentationLink link:calculationLink link:definitionLink 999067 - Disclosure - 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Disclosure - Schedule of deferred tax (Details) link:presentationLink link:calculationLink link:definitionLink 999076 - Disclosure - Schedule of other income (Details) link:presentationLink link:calculationLink link:definitionLink 999077 - Disclosure - Schedule of error corrections and prior period adjustments (Details) link:presentationLink link:calculationLink link:definitionLink