Financial reports
20-F
2022 FY
Annual report (foreign)
1 May 23
20-F/A
2021 FY
Annual report (foreign) (amended)
17 Jan 23
20-F/A
2021 FY
Annual report (foreign) (amended)
23 Dec 22
20-F
2021 FY
Annual report (foreign)
18 Jul 22
NT 20-F
Notice of late annual filing (foreign)
2 May 22
20-F
2020 FY
Annual report (foreign)
27 Apr 21
20-F/A
2019 FY
Annual report (foreign) (amended)
6 Jul 20
20-F
2019 FY
Annual report (foreign)
30 Jun 20
NT 20-F
Notice of late annual filing (foreign)
12 Jun 20
20-F
2018 FY
Annual report (foreign)
15 May 19
Current reports
6-K
Tantech Holdings Ltd Announces $2.1 Million Private Placement
25 Apr 24
6-K
Share Transfer Agreement
19 Mar 24
6-K
Tantech Receives NASDAQ Notification Regarding Minimum Bid Requirements
29 Feb 24
6-K
Current report (foreign)
16 Jan 24
6-K
Share Transfer Agreement
2 Jan 24
6-K
Current report (foreign)
5 Dec 23
6-K
Current report (foreign)
20 Nov 23
6-K
Current report (foreign)
24 Oct 23
6-K
Current report (foreign)
14 Aug 23
6-K
Current report (foreign)
30 Jun 23
Registration and prospectus
F-3
Shelf registration (foreign)
30 Aug 23
424B5
Prospectus supplement for primary offering
30 Jun 23
424B5
Prospectus supplement for primary offering
28 Jun 23
424B5
Prospectus supplement for primary offering
18 Mar 22
424B5
Prospectus supplement for primary offering
16 Mar 22
424B5
Prospectus supplement for primary offering
6 Dec 21
424B5
Prospectus supplement for primary offering
2 Dec 21
424B3
Prospectus supplement
28 Dec 20
F-3
Shelf registration (foreign)
18 Dec 20
D
$10M in options / securities to be acquired, sold $10M, 4 investors
7 Dec 20
Proxies
No filings
Other
EFFECT
Notice of effectiveness
12 Sep 23
CORRESP
Correspondence with SEC
7 Sep 23
UPLOAD
Letter from SEC
6 Sep 23
UPLOAD
Letter from SEC
24 Jan 23
CORRESP
Correspondence with SEC
17 Jan 23
UPLOAD
Letter from SEC
4 Jan 23
CORRESP
Correspondence with SEC
28 Nov 22
UPLOAD
Letter from SEC
10 Nov 22
CORRESP
Correspondence with SEC
12 Oct 22
UPLOAD
Letter from SEC
12 Sep 22
Ownership
SC 13G
Wang Jian
13 Oct 23
SC 13G
Wang Yan
13 Oct 23
SC 13G
Wu Huiqing
12 Oct 23
SC 13G
Zhang Lijuan
12 Oct 23
SC 13G
Zhang Xiaochun
12 Oct 23
SC 13G
Ye Zhaowei
12 Oct 23
SC 13G
KONG MAN
10 Oct 23
SC 13G/A
SABBY MANAGEMENT, LLC
10 Jan 23
SC 13G/A
SABBY MANAGEMENT, LLC
5 Jan 22
SC 13G
SABBY MANAGEMENT, LLC
9 Dec 21