TANTECH HOLDINGS LTD Goodwill and Intangible Asset Impairment
TANTECH HOLDINGS LTD (TANH) reported Goodwill and Intangible Asset Impairment of $0 for the 12-month period ending 2022-12-31, per its 20-F filed 2023-05-01.
Discontinued › Expense Statement › Operating Expenses
us-gaap:GoodwillAndIntangibleAssetImpairment · last filed 2023-05-01
| Period end | Goodwill and Intangible Asset Impairment 12 month |
|---|---|
| 2022-12-31 | $0.00 20-F · filed 2023-05-01 |
| 2021-12-31 | $0.00 20-F · filed 2023-05-01 |
| 2020-12-31 | $12.00M 20-F · filed 2023-05-01 |
| 2019-12-31 | $9.58M 20-F/A · filed 2023-01-17 |
| 2018-12-31 | $0.00 20-F · filed 2021-04-27 |
| 2017-12-31 | $0.00 20-F · filed 2020-06-30 |