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TANTECH HOLDINGS LTD — 424B3 Filings

2 424B3 filings on record

This page lists all 424B3 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 2 424B3 documents with the SEC since 2013. To view all SEC filings by TANTECH HOLDINGS LTD, see the full filings list.

Overview All Filings Financials Insiders
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
424B3 424B3 0001477932-24-004402 Jul 26, 2024 —
424B3 424B3 0001104659-20-139847 Dec 28, 2020 —