56 results
6-K
EX-99.2
TANH
Tantech Holdings Ltd
5 Dec 23
Current report (foreign)
8:00am
products have the ability to absorb harmful substances and air-borne odors, including benzene, formaldehyde, ammonia and carbon tetrachloride … domestic business interests and ensure our position as a bamboo carbon technology pioneer in our industry. However, we do not believe that our business
F-3
TANH
Tantech Holdings Ltd
30 Aug 23
Shelf registration (foreign)
4:45pm
friendly because it takes in substantial amounts of carbon dioxide and gives off oxygen as it grows. Indeed, bamboo sequesters more carbon dioxide than … the full life cycle, as such harvesting maximizes the amount of carbon dioxide the bamboo can sequester because of the effects of fungus noted above
424B5
TANH
Tantech Holdings Ltd
30 Jun 23
Prospectus supplement for primary offering
4:05pm
is considered environmentally friendly because it takes in substantial amounts of carbon dioxide and gives off oxygen as it grows. Indeed, bamboo sequesters … more carbon dioxide than an equivalent region of plantation trees. Moreover, harvesting of bamboo is considered more environmentally friendly than
424B5
TANH
Tantech Holdings Ltd
28 Jun 23
Prospectus supplement for primary offering
5:27pm
area where previous culms grew.
Bamboo is considered environmentally friendly because it takes in substantial amounts of carbon dioxide and gives off … oxygen as it grows. Indeed, bamboo sequesters more carbon dioxide than an equivalent region of plantation trees. Moreover, harvesting of bamboo
6-K
EX-99.2
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28 Dec 22
Current report (foreign)
8:35am
424B5
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18 Mar 22
Prospectus supplement for primary offering
6:02am
424B5
c2yn7lbo2kv6381ej2
16 Mar 22
Prospectus supplement for primary offering
6:11am
424B5
rfpac3vebokp
6 Dec 21
Prospectus supplement for primary offering
5:28pm
424B5
5ab4m7
2 Dec 21
Prospectus supplement for primary offering
6:02am
6-K
EX-99.2
yhl1g
22 Oct 21
Current report (foreign)
5:10pm
424B3
e2oke5nu homqxgkc4e
28 Dec 20
Prospectus supplement
5:01pm
F-3
flm1gywrpm
18 Dec 20
Shelf registration (foreign)
5:03pm
424B5
gl6w g5o8njd
24 Nov 20
Prospectus supplement for primary offering
8:21am
6-K
EX-99.1
hiizm3hy1
30 Sep 20
Current report (foreign)
4:15pm
6-K
EX-99.2
62h50onwbux
30 Sep 20
Current report (foreign)
4:15pm