00000001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 00000002 - Statement - Condensed Consolidated Balance Sheets link:presentationLink link:calculationLink link:definitionLink 00000003 - Statement - Condensed Consolidated Balance Sheets (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 00000004 - Statement - Condensed Consolidated Statements of Operations and Comprehensive (Loss) Income (Unaudited) link:presentationLink link:calculationLink link:definitionLink 00000005 - Statement - Condensed Consolidated Statements of Operations and Comprehensive (Loss) Income (Unaudited) (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 00000006 - Statement - Condensed Consolidated Statements of Changes in Shareholders' Equity (Unaudited) link:presentationLink link:calculationLink link:definitionLink 00000007 - Statement - Condensed Consolidated Statements of Changes in Shareholders' Equity (Unaudited) (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 00000008 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited) link:presentationLink link:calculationLink link:definitionLink 999009 - Disclosure - Organization and principal activities link:presentationLink link:calculationLink link:definitionLink 999010 - Disclosure - Summary of significant accounting policies link:presentationLink link:calculationLink link:definitionLink 999011 - Disclosure - Accounts receivable, net link:presentationLink link:calculationLink link:definitionLink 999012 - Disclosure - Prepaid expenses and other current assets link:presentationLink link:calculationLink link:definitionLink 999013 - Disclosure - Intangible assets under construction link:presentationLink link:calculationLink link:definitionLink 999014 - Disclosure - Intangible assets, net link:presentationLink link:calculationLink link:definitionLink 999015 - Disclosure - Property and equipment, net link:presentationLink link:calculationLink link:definitionLink 999016 - Disclosure - Accrued expenses link:presentationLink link:calculationLink link:definitionLink 999017 - Disclosure - Income taxes link:presentationLink link:calculationLink link:definitionLink 999018 - Disclosure - Equity link:presentationLink link:calculationLink link:definitionLink 999019 - Disclosure - Concentration of major customers and suppliers link:presentationLink link:calculationLink link:definitionLink 999020 - Disclosure - Related party transactions link:presentationLink link:calculationLink link:definitionLink 999021 - Disclosure - Commitments and Contingencies link:presentationLink link:calculationLink link:definitionLink 999022 - Disclosure - Subsequent events link:presentationLink link:calculationLink link:definitionLink 999023 - Disclosure - Summary of significant accounting policies (Policies) link:presentationLink link:calculationLink link:definitionLink 999024 - Disclosure - Organization and principal activities (Tables) link:presentationLink link:calculationLink link:definitionLink 999025 - Disclosure - Summary of significant accounting policies (Tables) link:presentationLink link:calculationLink link:definitionLink 999026 - Disclosure - Accounts receivable, net (Tables) link:presentationLink link:calculationLink link:definitionLink 999027 - Disclosure - Prepaid expenses and other current assets (Tables) link:presentationLink link:calculationLink link:definitionLink 999028 - Disclosure - Intangible assets, net (Tables) link:presentationLink link:calculationLink link:definitionLink 999029 - Disclosure - Property and equipment, net (Tables) link:presentationLink link:calculationLink link:definitionLink 999030 - Disclosure - Accrued expenses (Tables) link:presentationLink link:calculationLink link:definitionLink 999031 - Disclosure - Income taxes (Tables) link:presentationLink link:calculationLink link:definitionLink 999032 - Disclosure - Related party transactions (Tables) link:presentationLink link:calculationLink link:definitionLink 999033 - Disclosure - Organization and principal activities (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999034 - Disclosure - Schedule of subsidiaries company (Details) link:presentationLink link:calculationLink link:definitionLink 999035 - Disclosure - Schedule of useful lives of property, plant and equipment (Details) link:presentationLink link:calculationLink link:definitionLink 999036 - Disclosure - Summary of significant accounting policies (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999037 - Disclosure - Schedule of accounts receivable, net (Details) link:presentationLink link:calculationLink link:definitionLink 999038 - Disclosure - Schedule of prepaid expenses and other current assets (Details) link:presentationLink link:calculationLink link:definitionLink 999039 - Disclosure - Schedule of intangible assets (Details) link:presentationLink link:calculationLink link:definitionLink 999040 - Disclosure - Schedule of amortization expenses (Details) link:presentationLink link:calculationLink link:definitionLink 999041 - Disclosure - Intangible assets, net (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999042 - Disclosure - Schedule of property and equipment (Details) link:presentationLink link:calculationLink link:definitionLink 999043 - Disclosure - Property and equipment, net (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999044 - Disclosure - Schedule of accrued expenses (Details) link:presentationLink link:calculationLink link:definitionLink 999045 - Disclosure - Income taxes (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999046 - Disclosure - Schedule of income tax expense (Details) link:presentationLink link:calculationLink link:definitionLink 999047 - Disclosure - Schedule of effective income tax rate reconciliation (Details) link:presentationLink link:calculationLink link:definitionLink 999048 - Disclosure - Equity (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999049 - Disclosure - Concentration of major customers and suppliers (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999050 - Disclosure - Schedule of relationship and the nature of related party transactions (Details) link:presentationLink link:calculationLink link:definitionLink 999051 - Disclosure - Schedule of borrowing transactions related party (Details) link:presentationLink link:calculationLink link:definitionLink 999052 - Disclosure - Commitments and Contingencies (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 999053 - Disclosure - Subsequent events (Details Narrative) link:presentationLink link:calculationLink link:definitionLink