TANTECH HOLDINGS LTD Research and Development Expense
TANTECH HOLDINGS LTD (TANH) reported Research and Development Expense of $78.57 thousand for the 12-month period ending 2025-12-31, per its 20-F filed 2026-05-14.
Financial Statements › Expense Statement › Operating Expenses
us-gaap:ResearchAndDevelopmentExpense · last filed 2026-05-14
| Period end | Research and Development Expense 6 month | Research and Development Expense 12 month | Research and Development Expense 12 month as first filed |
|---|---|---|---|
| 2025-12-31 | $78.57K 20-F · filed 2026-05-14 | ||
| 2025-06-30 | $15.20K 6-K · filed 2025-12-19 | ||
| 2024-12-31 | $38.80K 20-F · filed 2026-05-14 | ||
| 2024-06-30 | $35.62K 6-K · filed 2025-12-19 | ||
| 2023-12-31 | $23.94K 20-F · filed 2026-05-14 | $471.19K 20-F · filed 2024-06-11 | |
| 2023-06-30 | $15.72K 6-K · filed 2025-01-02 | ||
| 2022-12-31 | $23.15K 20-F/A · filed 2025-09-18 | $227.83K 20-F · filed 2023-05-01 | |
| 2022-06-30 | $236.57K 6-K · filed 2023-12-05 | ||
| 2021-12-31 | $8.05M 20-F · filed 2024-06-11 | ||
| 2021-06-30 | $6.35M 6-K · filed 2022-12-28 | ||
| 2020-12-31 | $890.32K 20-F · filed 2023-05-01 | ||
| 2020-06-30 | $302.55K 6-K · filed 2021-10-22 | ||
| 2019-12-31 | $327.26K 20-F/A · filed 2023-01-17 | ||
| 2019-06-30 | $35.75K 6-K · filed 2020-09-30 | ||
| 2018-12-31 | $386.63K 20-F · filed 2021-04-27 | ||
| 2017-12-31 | $627.58K 20-F · filed 2020-06-30 | ||
| 2016-12-31 | $136.63K 20-F · filed 2019-05-15 | $479.35K 20-F · filed 2017-05-01 | |
| 2015-12-31 | $1.08M 20-F · filed 2018-05-11 | ||
| 2014-12-31 | $745.64K 20-F · filed 2016-10-28 | ||
| 2013-12-31 | $731.72K 20-F · filed 2015-04-30 |