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

INCOME TAXES - Additional Information (Details)

v3.20.4
INCOME TAXES - Additional Information (Details)
12 Months Ended
Sep. 30, 2020
CNY (¥)
Sep. 30, 2019
USD ($)
Sep. 30, 2018
USD ($)
Sep. 30, 2020
USD ($)
Deferred tax assets ¥ 724,612 $ 289,756 $ 299,596 $ 724,612
Income tax rate 15.00% 15.00% 15.00%  
Statute of limitations period (in years) 3 years      
State Administration of Taxation, China        
Income tax rate 25.00%      
State Administration of Taxation, China | Zhengkang        
Income tax rate 15.00%      
Preferential tax rate, validity period 3 years      
State Administration of Taxation, China | Zhengfeng and Weijia        
Income tax rate 25.00%      
Inland Revenue, Hong Kong | ZK Pipe Industry Co        
Income tax rate 16.50%      
Uganda Revenue Authority | ZK Uganda        
Income tax rate 30.00%