XML 50 R41.htm IDEA: XBRL DOCUMENT
v3.22.4

Organization and nature of business - Details of Subsidiaries of Company and Principal Business Activities (Details) | Jun. 30, 2022
--- | ---
USCNHK |
Subsidiaries of the Company and their principal business activities |
% of Ownership | 100.00%
Euroasia |
Subsidiaries of the Company and their principal business activities |
% of Ownership | 100.00%
EPakia |
Subsidiaries of the Company and their principal business activities |
% of Ownership | 100.00%
USCNHK | Lishui Tantech |
Subsidiaries of the Company and their principal business activities |
% of Ownership | 100.00%
Euroasia | Euroasia New Energy |
Subsidiaries of the Company and their principal business activities |
% of Ownership | 100.00%
Euroasia | Jiamu |
Subsidiaries of the Company and their principal business activities |
% of Ownership | 100.00%
Euroasia | Shangchi Intelligent Equipment |
Subsidiaries of the Company and their principal business activities |
% of Ownership | 100.00%
Euroasia | Eurasia Holdings |
Subsidiaries of the Company and their principal business activities |
% of Ownership | 100.00%
Euroasia | China East |
Subsidiaries of the Company and their principal business activities |
% of Ownership | 100.00%
Jiamu | Wangbo |
Subsidiaries of the Company and their principal business activities |
% of Ownership | 100.00%
Jiamu | Jiyi |
Subsidiaries of the Company and their principal business activities |
% of Ownership | 100.00%
Wangbo | Shangchi Automobile |
Subsidiaries of the Company and their principal business activities |
% of Ownership | 51.00%
Jiyi | Shangchi Automobile |
Subsidiaries of the Company and their principal business activities |
% of Ownership | 19.00%
Shangchi Automobile | Shenzhen Yimao |
Subsidiaries of the Company and their principal business activities |
% of Ownership | 100.00%
Lishui Tantech | Lishui Xincai |
Subsidiaries of the Company and their principal business activities |
% of Ownership | 100.00%
Lishui Tantech | Zhejiang Shangchi |
Subsidiaries of the Company and their principal business activities |
% of Ownership | 100.00%
Lishui Tantech | Lishui Smart |
Subsidiaries of the Company and their principal business activities |
% of Ownership | 100.00%
Lishui Xincai | Tantech Charcoal |
Subsidiaries of the Company and their principal business activities |
% of Ownership | 100.00%
Lishui Xincai | Jikang Energy |
Subsidiaries of the Company and their principal business activities |
% of Ownership | 100.00%
Lishui Xincai | Tanbo Tech |
Subsidiaries of the Company and their principal business activities |
% of Ownership | 100.00%
Jikang Energy | Tantech Bamboo |
Subsidiaries of the Company and their principal business activities |
% of Ownership | 100.00%
Euroasia New Energy | Gangyu Trading |
Subsidiaries of the Company and their principal business activities |
% of Ownership | 100.00%
Eurasia Holdings | Eurasia Supply |
Subsidiaries of the Company and their principal business activities |
% of Ownership | 100.00%
Shangchi Intelligent Equipment | Shangchi Medical |
Subsidiaries of the Company and their principal business activities |
% of Ownership | 100.00%
Shenzhen Shangdong | Shanghai Wangju |
Subsidiaries of the Company and their principal business activities |
% of Ownership | 100.00%
Shenzhen Shangdong | First International |
Subsidiaries of the Company and their principal business activities |
% of Ownership | 75.00%
China East | First International |
Subsidiaries of the Company and their principal business activities |
% of Ownership | 25.00%

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_MinorityInterestLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The parent entity's interest in net assets of the subsidiary, expressed as a percentage. + References No definition available. + Details
Name: | us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | srt_OwnershipAxis=tanh_UscnhkGroupLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=tanh_EagInternationalVantageCapitalsLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=tanh_EpakiaIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=tanh_UscnhkGroupLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=tanh_TantechHoldingsLishuiCo.Ltd.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=tanh_EagInternationalVantageCapitalsLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=tanh_EuroasiaNewEnergyAutomotiveJiangsuCo.Ltd.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=tanh_ShanghaiJiamuInvestmentManagementCo.LtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=tanh_ShangchiZhejiangIntelligentEquipmentCo.LtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=tanh_EurasiaHoldingsZhejiangCo.ltdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=tanh_ChinaEastTradeCo.LtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=tanh_ShanghaiJiamuInvestmentManagementCo.LtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=tanh_HangzhouWangboInvestmentManagementCo.LtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=tanh_HangzhouJiyiInvestmentManagementCo.LtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=tanh_HangzhouWangboInvestmentManagementCo.LtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=tanh_ShangchiAutomobileCo.Ltd.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=tanh_HangzhouJiyiInvestmentManagementCo.LtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=tanh_ShangchiAutomobileCo.Ltd.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=tanh_ShenzhenYimaoNewEnergySalesCo.Ltd.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=tanh_TantechHoldingsLishuiCo.Ltd.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=tanh_LishuiXincaiIndustrialCo.Ltd.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=tanh_ZhejiangShangchiNewEnergyAutomobileCo.Ltd.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=tanh_LishuiSmartNewEnergyAutomobileCo.Ltd.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=tanh_LishuiXincaiIndustrialCo.Ltd.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=tanh_ZhejiangTantechBambooCharcoalCo.Ltd.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=tanh_LishuiJikangEnergyTechnologyCo.Ltd.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=tanh_HangzhouTanboTechCo.Ltd.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=tanh_LishuiJikangEnergyTechnologyCo.Ltd.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=tanh_ZhejiangTantechBambooTechnologyCo.Ltd.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=tanh_EuroasiaNewEnergyAutomotiveJiangsuCo.Ltd.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=tanh_GangyuTradingJiangsuCo.LtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=tanh_EurasiaHoldingsZhejiangCo.ltdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=tanh_HangzhouEurasiaSupplyChainCo.LtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=tanh_ShangchiZhejiangIntelligentEquipmentCo.LtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=tanh_ZhejiangShangchiMedicalEquipmentCo.LtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=tanh_ShenzhenShangdongTradingCo.LtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=tanh_ShanghaiWangjuIndustrialGroupCo.Ltd.ShanghaiWangjuMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=tanh_FirstInternationalCommercialFactoringShenzhenCo.LtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=tanh_ChinaEastTradeCo.LtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |