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ACQUIRED INTANGIBLE ASSETS, NET | 12 Months Ended
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Sep. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract] |
Intangible Assets Disclosure [Text Block] | 12. ACQUIRED INTANGIBLE ASSETS, NET Acquired intangible assets, net consist of the following:
|  | September 30,
|  | 2018 |  | 2019
|  | RMB |  | RMB
Technology rights for licensed seeds |  | 75,899 |  | 75,899
Others |  | 4,739 |  | 4,739
|  | 80,638 |  | 80,638
Accumulated amortization |  | (67,806) |  | (70,699)
Impairment provision |  | (4,470) |  | (4,470)
Acquired intangible assets, net |  | 8,362 |  | 5,469
Amortization expenses for the years ended September 30, 2017, 2018 and 2019 were RMB6,153, RMB5,944, and RMB2,893 respectively. RMBnil, RMB1,433, and RMBnil were charged for impairment for the years ended September 30, 2017, 2018 and 2019, respectively. Amortization expense on these intangible assets for each of the next five years is as follows:
Year ending September 30, |  | RMB
2020 |  | 1,356
2021 |  | 652
2022 |  | 580
2023 |  | 557
2024 |  | 545
Total |  | 3,690
The Company enters into technology transfer and usage agreements with strategic partners and pays up-front fees for the exclusive rights to certain seed technologies. Technology rights are amortized over an average usage period of 3 to 20 years and are charged to general and administrative expenses.

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- Definition The entire disclosure for all or part of the information related to intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI http://asc.fasb.org/topic&trid=2144416 + Details
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