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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)
12 Months Ended
Sep. 30, 2022
Leasehold improvements  
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES  
Property, plant and equipment estimated useful lives Shorter of the useful lives or the lease term
Maximum | Plant and building  
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES  
Property, plant and equipment useful life 40 years
Maximum | Machinery and equipment  
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES  
Property, plant and equipment useful life 15 years
Maximum | Furniture and office equipment  
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES  
Property, plant and equipment useful life 8 years
Maximum | Motor vehicles  
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES  
Property, plant and equipment useful life 10 years
Minimum | Plant and building  
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES  
Property, plant and equipment useful life 20 years
Minimum | Machinery and equipment  
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES  
Property, plant and equipment useful life 10 years
Minimum | Furniture and office equipment  
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES  
Property, plant and equipment useful life 5 years
Minimum | Motor vehicles  
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES  
Property, plant and equipment useful life 5 years