# EDGAR Filing Document

**Accession Number:** 0001588084
**File Stem:** 0001477932-26-001403
**Filing Date:** 2026-3
**Character Count:** 4590
**Document Hash:** 5091766e8c34cbba68c50861be164fe8
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001477932-26-001403.hdr.sgml**: 20260317

**ACCESSION NUMBER**: 0001477932-26-001403

**CONFORMED SUBMISSION TYPE**: 3

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20130629

**FILED AS OF DATE**: 20260317

**DATE AS OF CHANGE**: 20260317

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Zhang Yefang
- **CENTRAL INDEX KEY:** 0001667258

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-36885
- **FILM NUMBER:** 26764396

**MAIL ADDRESS:**
- **STREET 1:** RM104, BLOCK 18, YIJINGHUAYUAN
- **STREET 2:** LIANDU DISTRICT
- **CITY:** LISHUI CITY, ZHEJIANG PROVINCE
- **STATE:** F4
- **ZIP:** 323000
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** TANTECH HOLDINGS LTD
- **CENTRAL INDEX KEY:** 0001588084
- **STANDARD INDUSTRIAL CLASSIFICATION:** INDUSTRIAL ORGANIC CHEMICALS [2860]
- **ORGANIZATION NAME:** 08 Industrial Applications and Services
- **EIN:** 000000000
- **STATE OF INCORPORATION:** D8
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** NO. 10 CEN SHAN RD, SHUIGE INDTRL ZONE
- **STREET 2:** LISHUI CITY
- **CITY:** ZHEJIANG
- **STATE:** F4
- **ZIP:** 323000
- **BUSINESS PHONE:** 86 578 226 2309

**MAIL ADDRESS:**
- **STREET 1:** NO. 10 CEN SHAN RD, SHUIGE INDTRL ZONE
- **STREET 2:** LISHUI CITY
- **CITY:** ZHEJIANG
- **STATE:** F4
- **ZIP:** 323000

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 3

### INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Zhang Yefang<br><sub>(Last) (First) (Middle)</sub><br>NO. 10 CEN SHAN ROAD<br>SHUIGE INDUSTRIAL ZONE LIANDU DISTRICT<br><sub>(Street)</sub><br>LISHUI,  ZHEJIANG PROVINCE, F4 323000<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>TANTECH HOLDINGS LTD [ TANH ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2013-06-29-05:00 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director   [ ] 10% Owner<br>[ ] Officer (give title below)   [ ] Other (specify below)<br>_ _ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities Beneficially Owned

---

|  |  |  |  |
| --- | --- | --- | --- |
| 1. Title of Security | 2. Amount of Securities Beneficially Owned | 3. Ownership Form | 4. Nature of Indirect Beneficial Ownership |
| Class B Common Shares | 1142 | I | Through TANBSOK GROUP LTD<sup>(1)</sup> |

---

## Table II - Derivative Securities Beneficially Owned

---

|  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 3. Title and Amount of Underlying Securities | 3. Title and Amount of Underlying Securities | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
|  |  |  |  |  |  |  |  |

---

### Footnotes:

(1) Such Class B common shares are held of record by TANBSOK GROUP LTD. Ms. Zhang is the sole shareholder of TANBSOK GROUP LTD and has the sole power to vote and dispose of the securities held by such entity.

**Signature:** /s/ Yefang Zhang  
**Date:** 2026-03-17-05:00

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**