Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Document And Entity Information

Document And Entity Information
12 Months Ended
Sep. 30, 2019
Document And Entity Information [Abstract]  
Document Type 20-F
Document Annual Report true
Document Transition Report false
Document Shell Company Report false
Amendment Flag false
Document Period End Date Sep. 30, 2019
Document Fiscal Year Focus 2019
Document Fiscal Period Focus FY
Entity Registrant Name ZK International Group Co., Ltd.
Entity Central Index Key 0001687451
Current Fiscal Year End Date --09-30
Entity Well-known Seasoned Issuer No
Entity Voluntary Filers No
Entity Current Reporting Status Yes
Entity Interactive Data Current Yes
Entity Filer Category Non-accelerated Filer
Trading Symbol ZKIN
Entity Common Stock, Shares Outstanding 16,558,037
Entity Shell Company false
Entity Emerging Growth Company true
Entity Ex Transition Period false