Report of Foreign Issuer (6-k)

U.S. SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16 UNDER

THE SECURITIES EXCHANGE ACT OF 1934

For the month of August 2015

Commission File Number: 001-36885

TANTECH HOLDINGS LTD

Tantech Holdings Ltd

c/o Zhejiang Tantech Bamboo Technology Co., Ltd

No. 10 Chen Shan Road, Shuige Industrial Zone

Lishui City, Zhejiang Province 323600

+86-578-226-2305

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F x Form 40-F ¨

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): ¨

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): ¨

Explanatory Note:

On August 10, 2015, the Registrant published a press release announcing the entry into an agreement with Zhejiang EGE Battery Manufacturing Co., Ltd. to develop, market and sell carbon-based aluminum batteries. The batteries will feature the Registrant’s Electric Double-Layer Capacitor carbon material for the cathode. Production is expected to commence later in August 2015. A copy of the press release is attached as Exhibit 99.1.

Pursuant to the requirements of the Securities and Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	TANTECH HOLDINGS LTD

	By:	/s/ Zhengyu Wang
		Name: Zhengyu Wang Its: Chief Executive Officer

Dated: August 10, 2015

Exhibit Index

99.1. Press Release dated August 10, 2015

Exhibit 99.1

Tantech Holdings to Produce EDLC Carbon Based Aluminum Batteries in Cooperation with Major Battery Manufacturer

LISHUI, China, August 10, 2015 /PRNewswire/ -- Tantech Holdings Ltd. (NASDAQ: TANH) (“Tantech” or the “Company”), a leading manufacturer of bamboo-based charcoal products, today announced that it has entered into a strategic cooperation agreement (the “Agreement”) with Zhejiang EGE Battery Manufacturing Co., Ltd. (“EGE”) to jointly develop, market, and sell carbon based aluminum batteries (the “Battery”). The Battery, using Tantech’s Electric Double-Layer Capacitor (“EDLC”) carbon material for the cathode, is expected to offer a safe, easy-charging, long-lasting and eco-friendly alternative to many commercial batteries in wide use today.

Trial production is expected to commence later this month with Tantech initially providing 10,000 units per month of EDLC carbon electrode material and ramping up to 20,000 units per month by the first half of 2016. The Battery can be used in a wide range of applications, such as solar/wind power storage systems for home and business, forklifts, electric garbage trucks, etc., and is expected to generate more than $10 million in sales for Tantech in 2016.

Mr. Zhengyu Wang, Chairman and Chief Executive Officer of Tantech, commented, “We are thrilled to partner with EGE, a major player with over a decade of success in providing battery solutions to a wide range of industries. Since 2011, EDLC carbon has been one of the fastest growing business segments for us with sales exceeding RMB 53 million in 2014. The Agreement, which allows for an effective combination of our strength in EDLC carbon electrode material and our recently launched capacitor battery R&D center led by renowned battery experts, Yuxun Yang, Limin Wang, and Yaoming Wu, with EGE’s expertise in battery assembly and global distribution network, provides us a clear and easy path to quickly expand along the battery value chain and potentially another leg of growth in coming years.

Mr. Jianmin Chen, Chairman and Chief Executive Officer of EGE added, “The joint effort creates a win-win situation for both parties as we share similar visions for the Chinese battery market. We are positioning the battery as an upgrade or replacement for our mainstream Lead Acid batteries that we currently sell in a wide range of applications globally with Siemens AG, BT Group plc, and Emerson Electric Company among our major customers. We look forward to a mutually beneficially relationship with Tantech in coming years.”

About Zhejiang EGE Battery Manufacturing Co., Ltd.

Founded in 2003, Zhejiang EGE Battery Manufacturing Co., Ltd. (“EGE”) is a high-tech enterprise focused on producing Lead-crystal and other battery products used in a wide range of applications such as power storage systems, electric vehicles and electric locomotive. EGE currently employs over 250 employees and has production facilities in Huzhou City, Zhejiang Province and Zaozhuang City, Shandong Province, with combined annual production capacity of over 2,000,000 units of batteries that are sold in China and over 30 other countries including Germany, Netherlands, U.K., France, U.S., South Africa, Australia, and Malaysia, etc. For more information about EGE, please visit: http://www.chinaege.com/en/index.asp.

About Tantech Holdings Ltd.

Established in 2001 and headquartered in Lishui City, Zhejiang Province, China, Tantech Holdings Ltd., together with its subsidiaries, develops and manufactures bamboo-based charcoal products in China. It operates through three segments: Consumer Products, Trading, and Biofuel Energy. The company produces pressed and formed charcoal briquettes for use in grills, incense burners, and other applications under the Algold brand. It also offers Charcoal Doctor branded products, such as air purifiers and humidifiers, automotive accessories for air purification, underfloor humidity control, pillows and mattresses, wardrobe deodorizers, mouse pads and wrist mats, refrigerator deodorants, charcoal toilet cleaner disks, liquid charcoal cleaners, shoe insoles, and decorative charcoal gifts. In addition, the Company provides liquid byproduct consists of bamboo vinegar that is used in disinfectants, detergents, lotions, specialized soaps, toilet cleaners, and fertilizers, as well as in various agricultural applications. Further, it engages in providing bamboo carbon for use in EDLCs and the production of electric double-layer capacitor carbon products. The Company provides its products for industrial energy applications, as well as household cooking, heating, purification, agricultural, and cleaning uses. The company also exports its bamboo vinegar, bamboo charcoal purification, and EDLC carbon products. For more information about Tantech Holdings Ltd., please visit: http://www.tantech.cn/en/index.asp

Forward-Looking Statements

This news release contains forward-looking statements as defined by the Private Securities Litigation Reform Act of 1995. Forward-looking statements include statements concerning plans, objectives, goals, strategies, future events or performance, and underlying assumptions and other statements that are other than statements of historical facts. These statements are subject to uncertainties and risks including, but not limited to, product and service demand and acceptance, changes in technology, economic conditions, the impact of competition and pricing, government regulations, and other risks contained in reports filed by the company with the Securities and Exchange Commission. All such forward-looking statements, whether written or oral, and whether made by or on behalf of the Company, are expressly qualified by this cautionary statement and any other cautionary statements which may accompany the forward-looking statements. In addition, the Company disclaims any obligation to update any forward-looking statements to reflect events or circumstances after the date hereof.

For more information please contact:

Tantech Holdings Ltd.
Ms. Ye Ren
IR Manager
+86-578-261-2869
ir@tantech.cn

Investor Relations
Mr. David L. Richmond
+1-585-314-1619
yantsee@aol.com