TANTECH HOLDINGS LTD — 20-F Filings
11 20-F filings on record
This page lists all 20-F filings submitted to the SEC by TANTECH HOLDINGS LTD (TANH), sorted by most recent first. Each row links to the full filing on EdgarLookup. TANTECH HOLDINGS LTD has filed 11 20-F documents with the SEC since 2013. To view all SEC filings by TANTECH HOLDINGS LTD, see the full filings list.
All
144
20-F
20-F/A
3
424B1
424B3
424B5
6-K
6-K/A
8-A12B
CERTNAS
CORRESP
D
DRS
DRS/A
DRSLTR
EFFECT
F-1
F-1/A
F-3
F-3/A
NT 20-F
POS AM
RW
RW WD
S-8
SC 13D
SC 13G
SC 13G/A
SCHEDULE 13G
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 20-F | FORM 20-F | 0001477932-25-003802 | May 15, 2025 | Dec 31, 2024 |
| 20-F | FORM 20-F | 0001477932-24-003629 | Jun 11, 2024 | Dec 31, 2023 |
| 20-F | FORM 20-F | 0001477932-23-003017 | May 1, 2023 | Dec 31, 2022 |
| 20-F | 20-F | 0001410578-22-001956 | Jul 18, 2022 | Dec 31, 2021 |
| 20-F | 20-F | 0001104659-21-055681 | Apr 27, 2021 | Dec 31, 2020 |
| 20-F | FORM 20-F | 0001104659-20-079077 | Jun 30, 2020 | Dec 31, 2019 |
| 20-F | 20-F | 0001144204-19-026664 | May 15, 2019 | Dec 31, 2018 |
| 20-F | 20-F | 0001144204-18-027649 | May 11, 2018 | Dec 31, 2017 |
| 20-F | 20-F | 0001144204-17-023648 | May 1, 2017 | Dec 31, 2016 |
| 20-F | 20-F | 0001144204-16-097855 | Apr 29, 2016 | Dec 31, 2015 |
| 20-F | 20-F | 0001144204-15-026568 | Apr 30, 2015 | Dec 31, 2014 |