Filer Snapshot

TANTECH HOLDINGS LTD SEC EDGAR Filings

SEC filings, ownership reports, and insider transactions for CIK 0001588084.

Entity Type

Company

Total Filings

278

Latest Filing

01 May 2026

Industry

Industrial Organic Chemicals

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Source: SEC filing NT 20-F

NT 20-F filed on 01 May 2026 for CIK 0001588084.

View Source Filing
Symbol
TANH on Nasdaq
Industry
Industrial Organic Chemicals (Industrial Applications And Services)
Business address
No. 10 Cen Shan Rd, Shuige Indtrl Zone, Lishui City, Zhejiang, China, 323000
State of incorporation
Virgin Islands, British
Fiscal year end
31 December

Quick Takeaways

  • TANTECH HOLDINGS LTD is an SEC filer tracked under CIK 0001588084.
  • 278 filings are listed on this profile.
  • Common form coverage includes NT 20-F, 3, 6-K and more.

What Changed

  • Latest filing: NT 20-F filed on 01 May 2026.
  • Report period: 31 Dec 2025.

Why This Matters

  • You can quote filing dates and form types directly from the SEC record on this page.
  • Use this profile before deeper ownership or insider analysis to confirm filing history context.

Source Evidence

Source: SEC filing NT 20-F

NT 20-F filed on 01 May 2026 for CIK 0001588084.

View Source Filing

Return Loop

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A newly filed NT 20-F can change the filing history, ownership context, or next research path for TANTECH HOLDINGS LTD.

Latest source-backed update
NT 20-F filed 01 May 2026
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  • Latest filing on record: NT 20-F filed 01 May 2026.
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Filer freshness comes from SEC EDGAR submission history and related source-backed ownership or portfolio filings when available.

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Latest update

What changed recently for TANTECH HOLDINGS LTD

New fact period available

Latest financial period: Q4 2024. Open the source-backed page to inspect the fresh filing or facts context.

Update date

18 Sep 2025

Page type

Company facts

Latest period

Q4 2024

SEC-backed company facts were refreshed from filings filed on 18 Sep 2025.

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Benchmark Context

Benchmark context for this company

TANTECH HOLDINGS LTD has a source-backed company facts view where you can compare the latest reported metrics with its own recent history and with peer rankings for the same metric.

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Why this is notable

Latest financial period: Q4 2024. That gives you a fresh baseline before you compare this company with peers.

  • Latest company facts filing date: 18 Sep 2025.
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Filer Overview

TANTECH HOLDINGS LTD has filed 278 SEC EDGAR filings since 30 Sep 2013. Common forms include NT 20-F, 3, 6-K, 424B5 and more.

Industrial Organic Chemicals Insider transactions Latest 13F filings

Latest Filings

Recent SEC filings for TANTECH HOLDINGS LTD with direct links to document and filing folders.

Form type Document Filing Description Filing date Reporting date File number(s)
NT 20-F Open NT 20-F document View SEC filing for NT 20-F NT 20-F 01 May 2026 31 Dec 2025 001-36885
3 Open 3 document View SEC filing for 3 FORM 3 09 Apr 2026 29 May 2025
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 02 Apr 2026 01 Apr 2026 001-36885
424B5 Open 424B5 document View SEC filing for 424B5 424B5 02 Apr 2026 333-274274
3 Open 3 document View SEC filing for 3 FORM 3 31 Mar 2026 26 May 2023
3 Open 3 document View SEC filing for 3 FORM 3 31 Mar 2026 01 Jul 2014
3 Open 3 document View SEC filing for 3 FORM 3 31 Mar 2026 01 Jul 2014
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 31 Mar 2026 31 Mar 2026 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 25 Mar 2026 24 Mar 2026 001-36885
424B5 Open 424B5 document View SEC filing for 424B5 424B5 25 Mar 2026 333-274274
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 23 Mar 2026 23 Mar 2026 001-36885
3 Open 3 document View SEC filing for 3 FORM 3 17 Mar 2026 29 Jun 2013
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 15 Jan 2026 15 Jan 2026 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 31 Dec 2025 31 Dec 2025 001-36885
6-K Open 6-K document | Open XBRL data View SEC filing for 6-K FORM 6-K 19 Dec 2025 30 Jun 2025 001-36885
6-K Open 6-K document View SEC filing for 6-K FROM 6-K 11 Dec 2025 11 Dec 2025 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 24 Oct 2025 23 Oct 2025 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 17 Oct 2025 17 Oct 2025 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 24 Sep 2025 24 Sep 2025 001-36885
20-F/A Open 20-F/A document | Open XBRL data View SEC filing for 20-F/A FORM 20-F/A 18 Sep 2025 31 Dec 2024 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 03 Jun 2025 02 Jun 2025 001-36885
20-F Open 20-F document | Open XBRL data View SEC filing for 20-F FORM 20-F 15 May 2025 31 Dec 2024 001-36885
NT 20-F Open NT 20-F document View SEC filing for NT 20-F NT 20-F 01 May 2025 31 Dec 2024 001-36885
SCHEDULE 13G Open SCHEDULE 13G document View SEC filing for SCHEDULE 13G 21 Apr 2025 005-89402
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 03 Mar 2025 03 Mar 2025 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 10 Feb 2025 10 Feb 2025 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 08 Jan 2025 07 Jan 2025 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 06 Jan 2025 06 Jan 2025 001-36885
6-K Open 6-K document | Open XBRL data View SEC filing for 6-K FORM 6-K 02 Jan 2025 30 Jun 2024 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 8-K 27 Dec 2024 27 Dec 2024 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 20 Dec 2024 20 Dec 2024 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 16 Dec 2024 11 Dec 2024 001-36885
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A AMENDMENT NO. 1 TO SCHEDULE 13G 13 Nov 2024 005-89402
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 06 Nov 2024 005-89402
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 10 Sep 2024 10 Sep 2024 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 28 Aug 2024 28 Aug 2024 001-36885
6-K/A Open 6-K/A document View SEC filing for 6-K/A FORM 6-K/A 29 Jul 2024 29 Jul 2024 001-36885
424B3 Open 424B3 document View SEC filing for 424B3 424B3 26 Jul 2024 333-280791
EFFECT Open EFFECT document View SEC filing for EFFECT 25 Jul 2024 333-280791
CORRESP Open CORRESP document View SEC filing for CORRESP 23 Jul 2024
F-1/A Open F-1/A document View SEC filing for F-1/A FORM F-1/A 22 Jul 2024 333-280791
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 22 Jul 2024 333-280791
F-1 Open F-1 document View SEC filing for F-1 FORM F-1 12 Jul 2024 333-280791
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 17 Jun 2024 17 Jun 2024 001-36885
20-F Open 20-F document | Open XBRL data View SEC filing for 20-F FORM 20-F 11 Jun 2024 31 Dec 2023 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 21 May 2024 21 May 2024 001-36885
SC 13G Open SC 13G document View SEC filing for SC 13G SCHEDULE 13G 08 May 2024 005-89402
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 08 May 2024 08 May 2024 001-36885
SC 13G Open SC 13G document View SEC filing for SC 13G 03 May 2024 005-89402
NT 20-F Open NT 20-F document View SEC filing for NT 20-F NT 20-F 01 May 2024 31 Dec 2023 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 26 Apr 2024 24 Apr 2024 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 19 Mar 2024 19 Mar 2024 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 29 Feb 2024 28 Feb 2024 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 16 Jan 2024 16 Jan 2024 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 02 Jan 2024 02 Jan 2024 001-36885
6-K Open 6-K document | Open XBRL data View SEC filing for 6-K FORM 6-K 05 Dec 2023 30 Jun 2023 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 20 Nov 2023 17 Nov 2023 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 24 Oct 2023 24 Oct 2023 001-36885
SC 13G Open SC 13G document View SEC filing for SC 13G SC 13G 16 Oct 2023 005-89402
SC 13G Open SC 13G document View SEC filing for SC 13G SC 13G 13 Oct 2023 005-89402
SC 13G Open SC 13G document View SEC filing for SC 13G SC 13G 12 Oct 2023 005-89402
SC 13G Open SC 13G document View SEC filing for SC 13G SC 13G 12 Oct 2023 005-89402
SC 13G Open SC 13G document View SEC filing for SC 13G SC 13G 12 Oct 2023 005-89402
SC 13G Open SC 13G document View SEC filing for SC 13G SC 13G 12 Oct 2023 005-89402
SC 13G Open SC 13G document View SEC filing for SC 13G 10 Oct 2023 005-89402
EFFECT Open EFFECT document View SEC filing for EFFECT 11 Sep 2023 333-274274
CORRESP Open CORRESP document View SEC filing for CORRESP 07 Sep 2023
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 06 Sep 2023
F-3 Open F-3 document View SEC filing for F-3 FORM F-3 30 Aug 2023 333-274274
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 14 Aug 2023 14 Aug 2023 001-36885
424B5 Open 424B5 document View SEC filing for 424B5 424B5 30 Jun 2023 333-248197
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 30 Jun 2023 30 Jun 2023 001-36885
424B5 Open 424B5 document View SEC filing for 424B5 424B5 28 Jun 2023 333-248197
6-K/A Open 6-K/A document View SEC filing for 6-K/A FORM 6-K/A 28 Jun 2023 23 Jun 2023 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 23 Jun 2023 23 Jun 2023 001-36885
20-F Open 20-F document | Open XBRL data View SEC filing for 20-F FORM 20-F 01 May 2023 31 Dec 2022 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 24 Mar 2023 24 Mar 2023 001-36885
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 24 Jan 2023
CORRESP Open CORRESP document View SEC filing for CORRESP 17 Jan 2023
20-F/A Open 20-F/A document | Open XBRL data View SEC filing for 20-F/A 20-F/A 17 Jan 2023 31 Dec 2021 001-36885
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SABBY 13GA TANH 1.10.23 10 Jan 2023 005-89402
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 04 Jan 2023
6-K Open 6-K document | Open XBRL data View SEC filing for 6-K 6-K 28 Dec 2022 30 Jun 2022 001-36885
20-F/A Open 20-F/A document | Open XBRL data View SEC filing for 20-F/A 20-F/A 23 Dec 2022 31 Dec 2021 001-36885
6-K Open 6-K document View SEC filing for 6-K 6-K 21 Dec 2022 20 Dec 2022 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 13 Dec 2022 13 Dec 2022 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 01 Dec 2022 01 Dec 2022 001-36885
CORRESP Open CORRESP document View SEC filing for CORRESP 28 Nov 2022
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 22 Nov 2022 22 Nov 2022 001-36885
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 10 Nov 2022
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 08 Nov 2022 08 Nov 2022 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 31 Oct 2022 31 Oct 2022 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 19 Oct 2022 19 Oct 2022 001-36885
CORRESP Open CORRESP document View SEC filing for CORRESP 12 Oct 2022
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 12 Sep 2022
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 03 Aug 2022 03 Aug 2022 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 21 Jul 2022 21 Jul 2022 001-36885
20-F Open 20-F document | Open XBRL data View SEC filing for 20-F 20-F 18 Jul 2022 31 Dec 2021 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 21 Jun 2022 21 Jun 2022 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 01 Jun 2022 01 Jun 2022 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 27 May 2022 27 May 2022 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 19 May 2022 19 May 2022 001-36885
NT 20-F Open NT 20-F document View SEC filing for NT 20-F FORM NT 20-F 02 May 2022 31 Dec 2021 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 28 Apr 2022 28 Apr 2022 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 22 Mar 2022 22 Mar 2022 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 21 Mar 2022 21 Mar 2022 001-36885
424B5 Open 424B5 document View SEC filing for 424B5 424B5 18 Mar 2022 333-248197
424B5 Open 424B5 document View SEC filing for 424B5 424B5 16 Mar 2022 333-248197
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 15 Mar 2022 15 Mar 2022 001-36885
6-K Open 6-K document View SEC filing for 6-K 6-K 02 Mar 2022 02 Mar 2022 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 25 Feb 2022 25 Feb 2022 001-36885
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SABBY 13G-A TANH 1.04.22 05 Jan 2022 005-89402
SC 13G Open SC 13G document View SEC filing for SC 13G SABBY 13G TANH 12.09.21 09 Dec 2021 005-89402
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 07 Dec 2021 06 Dec 2021 001-36885
424B5 Open 424B5 document View SEC filing for 424B5 424B5 06 Dec 2021 333-248197
424B5 Open 424B5 document View SEC filing for 424B5 424B5 02 Dec 2021 333-248197
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 18 Nov 2021 18 Nov 2021 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 04 Nov 2021 04 Nov 2021 001-36885
6-K Open 6-K document | Open XBRL data View SEC filing for 6-K FORM 6-K 22 Oct 2021 30 Jun 2021 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 04 Oct 2021 04 Oct 2021 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 01 Sep 2021 01 Sep 2021 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 09 Aug 2021 09 Aug 2021 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 06 Aug 2021 06 Aug 2021 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 06 Aug 2021 06 Aug 2021 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 19 Jul 2021 19 Jul 2021 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 08 Jun 2021 08 Jun 2021 001-36885
6-K/A Open 6-K/A document View SEC filing for 6-K/A FORM 6-K/A 07 Jun 2021 07 Jun 2021 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 27 May 2021 27 May 2021 001-36885
20-F Open 20-F document | Open XBRL data View SEC filing for 20-F 20-F 27 Apr 2021 31 Dec 2020 001-36885
424B3 Open 424B3 document View SEC filing for 424B3 424B3 28 Dec 2020 333-251509
EFFECT Open EFFECT document View SEC filing for EFFECT 23 Dec 2020 333-251509
CORRESP Open CORRESP document View SEC filing for CORRESP 22 Dec 2020
CORRESP Open CORRESP document View SEC filing for CORRESP 22 Dec 2020
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 21 Dec 2020
F-3 Open F-3 document View SEC filing for F-3 F-3 18 Dec 2020 333-251509
6-K/A Open 6-K/A document View SEC filing for 6-K/A FORM 6-K/A 08 Dec 2020 08 Dec 2020 001-36885
D Open D document View SEC filing for D 07 Dec 2020 021-382494
SC 13G Open SC 13G document View SEC filing for SC 13G SCHEDULE 13G 30 Nov 2020 005-89402
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 24 Nov 2020 24 Nov 2020 001-36885
424B5 Open 424B5 document View SEC filing for 424B5 424B5 24 Nov 2020 333-248197
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 20 Nov 2020 20 Nov 2020 001-36885
6-K Open 6-K document | Open XBRL data View SEC filing for 6-K FORM 6-K 30 Sep 2020 30 Jun 2020 001-36885
6-K Open 6-K document View SEC filing for 6-K 6-K 14 Sep 2020 14 Sep 2020 001-36885
EFFECT Open EFFECT document View SEC filing for EFFECT 31 Aug 2020 333-248197
CORRESP Open CORRESP document View SEC filing for CORRESP 27 Aug 2020
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 26 Aug 2020
F-3 Open F-3 document View SEC filing for F-3 F-3 20 Aug 2020 333-248197
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 12 Aug 2020 12 Aug 2020 001-36885
EFFECT Open EFFECT document View SEC filing for EFFECT 04 Aug 2020 333-213240
POS AM Open POS AM document View SEC filing for POS AM POS AM 24 Jul 2020 333-213240
20-F/A Open 20-F/A document View SEC filing for 20-F/A 20-F/A 06 Jul 2020 31 Dec 2019 001-36885
20-F Open 20-F document | Open XBRL data View SEC filing for 20-F FORM 20-F 30 Jun 2020 31 Dec 2019 001-36885
NT 20-F Open NT 20-F document View SEC filing for NT 20-F NT 20-F 12 Jun 2020 31 Dec 2019 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 20 May 2020 20 May 2020 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 22 Apr 2020 22 Apr 2020 001-36885
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A 06 Feb 2020 005-89402
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 18 Dec 2019 18 Dec 2019 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 17 Dec 2019 17 Dec 2019 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 06 Dec 2019 06 Dec 2019 001-36885
6-K Open 6-K document View SEC filing for 6-K 6-K 29 Jul 2019 29 Jul 2019 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 27 Jun 2019 27 Jun 2019 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 27 Jun 2019 27 Jun 2019 001-36885
6-K Open 6-K document View SEC filing for 6-K 6-K 28 May 2019 28 May 2019 001-36885
20-F Open 20-F document | Open XBRL data View SEC filing for 20-F 20-F 15 May 2019 31 Dec 2018 001-36885
NT 20-F Open NT 20-F document View SEC filing for NT 20-F NT 20-F 30 Apr 2019 31 Dec 2018 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 23 Apr 2019 22 Apr 2019 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 30 Jan 2019 30 Jan 2019 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 26 Dec 2018 26 Dec 2018 001-36885
6-K Open 6-K document View SEC filing for 6-K 6-K 14 Dec 2018 14 Dec 2018 001-36885
6-K Open 6-K document View SEC filing for 6-K 6-K 10 Dec 2018 10 Dec 2018 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 07 Nov 2018 07 Nov 2018 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 15 Oct 2018 15 Oct 2018 001-36885
6-K Open 6-K document View SEC filing for 6-K 6-K 17 Sep 2018 17 Sep 2018 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 31 Aug 2018 31 Aug 2018 001-36885
6-K Open 6-K document View SEC filing for 6-K 6-K 23 Aug 2018 23 Aug 2018 001-36885
20-F Open 20-F document | Open XBRL data View SEC filing for 20-F 20-F 11 May 2018 31 Dec 2017 001-36885
NT 20-F Open NT 20-F document View SEC filing for NT 20-F NT 20-F 30 Apr 2018 31 Dec 2017 001-36885
6-K Open 6-K document View SEC filing for 6-K 6-K 19 Apr 2018 19 Apr 2018 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 06 Mar 2018 06 Mar 2018 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 10 Jan 2018 10 Jan 2018 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 29 Dec 2017 29 Dec 2017 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 21 Dec 2017 21 Dec 2017 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 19 Dec 2017 19 Dec 2017 001-36885
6-K Open 6-K document View SEC filing for 6-K 6-K 11 Dec 2017 11 Dec 2017 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 08 Nov 2017 08 Nov 2017 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 12 Oct 2017 12 Oct 2017 001-36885
6-K Open 6-K document View SEC filing for 6-K 6-K 29 Sep 2017 29 Sep 2017 001-36885
424B5 Open 424B5 document View SEC filing for 424B5 424B5 27 Sep 2017 333-213240
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 27 Sep 2017 27 Sep 2017 001-36885
6-K Open 6-K document View SEC filing for 6-K 6-K 27 Sep 2017 27 Sep 2017 001-36885
6-K/A Open 6-K/A document View SEC filing for 6-K/A FORM 6-K/A 25 Sep 2017 25 Sep 2017 001-36885
6-K Open 6-K document View SEC filing for 6-K 6-K 21 Sep 2017 21 Sep 2017 001-36885
144 Open 144 document View SEC filing for 144 FORM 144 28 Aug 2017 001-36885
6-K/A Open 6-K/A document | Open XBRL data View SEC filing for 6-K/A 6-K/A 19 Jul 2017 19 Jul 2017 001-36885
6-K Open 6-K document | Open XBRL data View SEC filing for 6-K 6-K 17 Jul 2017 17 Jul 2017 001-36885
20-F Open 20-F document | Open XBRL data View SEC filing for 20-F 20-F 01 May 2017 31 Dec 2016 001-36885
EFFECT Open EFFECT document View SEC filing for EFFECT 09 Mar 2017 333-213240
CORRESP Open CORRESP document View SEC filing for CORRESP 03 Mar 2017
RW WD Open RW WD document View SEC filing for RW WD RW WD 03 Mar 2017 333-213240
CORRESP Open CORRESP document View SEC filing for CORRESP 02 Mar 2017
RW Open RW document View SEC filing for RW RW 02 Mar 2017 333-213240
CORRESP Open CORRESP document View SEC filing for CORRESP 01 Mar 2017
F-3/A Open F-3/A document View SEC filing for F-3/A F-3/A 27 Feb 2017 333-213240
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 24 Feb 2017 23 Feb 2017 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 10 Feb 2017 10 Feb 2017 001-36885
F-3/A Open F-3/A document View SEC filing for F-3/A F-3/A 09 Feb 2017 333-213240
6-K Open 6-K document View SEC filing for 6-K 6-K 03 Jan 2017 03 Jan 2017 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 28 Dec 2016 28 Dec 2016 001-36885
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 23 Dec 2016
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 22 Dec 2016 22 Dec 2016 001-36885
CORRESP Open CORRESP document View SEC filing for CORRESP 21 Dec 2016
20-F/A Open 20-F/A document View SEC filing for 20-F/A 20-F/A 21 Dec 2016 31 Dec 2015 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 19 Dec 2016 19 Dec 2016 001-36885
6-K Open 6-K document View SEC filing for 6-K 6-K 13 Dec 2016 13 Dec 2016 001-36885
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 08 Dec 2016
CORRESP Open CORRESP document View SEC filing for CORRESP 28 Nov 2016
20-F/A Open 20-F/A document View SEC filing for 20-F/A 20-F/A 28 Nov 2016 31 Dec 2015 001-36885
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 03 Nov 2016
CORRESP Open CORRESP document View SEC filing for CORRESP 28 Oct 2016
20-F/A Open 20-F/A document | Open XBRL data View SEC filing for 20-F/A FORM 20-F/A 28 Oct 2016 31 Dec 2015 001-36885
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 30 Sep 2016
F-3/A Open F-3/A document View SEC filing for F-3/A F-3/A 12 Sep 2016 333-213240
F-3/A Open F-3/A document View SEC filing for F-3/A F-3/A 02 Sep 2016 333-213240
F-3 Open F-3 document View SEC filing for F-3 F-3 22 Aug 2016 333-213240
6-K/A Open 6-K/A document View SEC filing for 6-K/A FORM 6-K/A 15 Jul 2016 15 Jul 2016 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 12 Jul 2016 12 Jul 2016 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 24 Jun 2016 24 Jun 2016 001-36885
SC 13D Open SC 13D document View SEC filing for SC 13D SC 13D 11 May 2016 005-89402
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 06 May 2016 06 May 2016 001-36885
6-K Open 6-K document | Open XBRL data View SEC filing for 6-K FORM 6-K 02 May 2016 02 May 2016 001-36885
20-F Open 20-F document | Open XBRL data View SEC filing for 20-F 20-F 29 Apr 2016 31 Dec 2015 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 04 Mar 2016 04 Mar 2016 001-36885
SC 13G Open SC 13G document View SEC filing for SC 13G SC 13G 17 Feb 2016 005-89402
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 03 Feb 2016 03 Feb 2016 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 29 Jan 2016 29 Jan 2016 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 09 Dec 2015 09 Dec 2015 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 21 Aug 2015 21 Aug 2015 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 10 Aug 2015 10 Aug 2015 001-36885
S-8 Open S-8 document View SEC filing for S-8 FORM S-8 23 Jul 2015 333-205821
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 30 Jun 2015 30 Jun 2015 001-36885
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 08 Jun 2015 08 Jun 2015 001-36885
20-F Open 20-F document | Open XBRL data View SEC filing for 20-F 20-F 30 Apr 2015 31 Dec 2014 001-36885
S-8 Open S-8 document View SEC filing for S-8 S-8 13 Apr 2015 333-203387
424B1 Open 424B1 document View SEC filing for 424B1 FORM 424B1 27 Mar 2015 333-198788
EFFECT Open EFFECT document View SEC filing for EFFECT 18 Mar 2015 333-198788
CERTNAS Open CERTNAS document View SEC filing for CERTNAS AUTO-GENERATED PAPER DOCUMENT 18 Mar 2015 001-36885
CORRESP Open CORRESP document View SEC filing for CORRESP 17 Mar 2015
CORRESP Open CORRESP document View SEC filing for CORRESP 17 Mar 2015
8-A12B Open 8-A12B document View SEC filing for 8-A12B 8-A12B 17 Mar 2015 001-36885
F-1/A Open F-1/A document View SEC filing for F-1/A FORM F-1/A 16 Mar 2015 333-198788
F-1/A Open F-1/A document View SEC filing for F-1/A FORM F-1/A 16 Mar 2015 333-198788
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 13 Mar 2015
F-1/A Open F-1/A document View SEC filing for F-1/A F-1/A 04 Mar 2015 333-198788
CORRESP Open CORRESP document View SEC filing for CORRESP 11 Feb 2015
F-1/A Open F-1/A document View SEC filing for F-1/A F-1/A 11 Feb 2015 333-198788
F-1/A Open F-1/A document View SEC filing for F-1/A FORM F-1/A 06 Feb 2015 333-198788
CORRESP Open CORRESP document View SEC filing for CORRESP 05 Feb 2015
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 04 Feb 2015
F-1/A Open F-1/A document View SEC filing for F-1/A F-1/A 21 Jan 2015 333-198788
F-1/A Open F-1/A document View SEC filing for F-1/A F-1/A 15 Dec 2014 333-198788
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 17 Nov 2014
F-1/A Open F-1/A document View SEC filing for F-1/A FORM F-1/A 03 Nov 2014 333-198788
F-1/A Open F-1/A document View SEC filing for F-1/A FORM F-1/A 30 Sep 2014 333-198788
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 29 Sep 2014
CORRESP Open CORRESP document View SEC filing for CORRESP 17 Sep 2014
CORRESP Open CORRESP document View SEC filing for CORRESP 16 Sep 2014
F-1 Open F-1 document View SEC filing for F-1 F-1 16 Sep 2014 333-198788
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 08 Sep 2014
DRSLTR Open DRSLTR document View SEC filing for DRSLTR 25 Aug 2014
DRS/A Open DRS/A document View SEC filing for DRS/A 25 Aug 2014 377-00326
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 28 Jul 2014
DRSLTR Open DRSLTR document View SEC filing for DRSLTR 30 Jun 2014
DRS/A Open DRS/A document View SEC filing for DRS/A 30 Jun 2014 377-00326
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 31 Mar 2014
DRSLTR Open DRSLTR document View SEC filing for DRSLTR 04 Mar 2014
DRS/A Open DRS/A document View SEC filing for DRS/A 04 Mar 2014 377-00326
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 25 Oct 2013
DRS Open DRS document View SEC filing for DRS 30 Sep 2013 377-00326

About this filer

TANTECH HOLDINGS LTD files with the SEC under CIK 0001588084. This page aggregates EDGAR filings and related ownership activity.

Industry: Industrial Organic Chemicals.

FAQ

What is a CIK?
A Central Index Key (CIK) is a unique identifier assigned by the SEC to each filer.
Why are some filings missing?
New filings appear as the SEC updates EDGAR, and older records can vary by availability.
How often is this page updated?
Updates follow new EDGAR submissions and periodic data refreshes.
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