DFELChina TMK Battery Systems, Inc.

About China TMK Battery Systems, Inc. (DFEL)

China TMK Battery Systems, Inc. (DFEL) is a Electrical Equipment & Parts company headquartered in Shenzhen, China whose shares trade over-the-counter on the Pink tier.

TMK is headquartered in Shenzhen, China. The company is based on the research and development, manufacturing, sales and service of core products in the new energy industry. The company has newly established a number of wholly-owned subsidiaries in mainland China, which are distributed in the new energy vehicle parts, lithium batteries, new materials and other sectors.

Products and services

Products：Our main business is distributing various battery materials, including graphite and diaphragms. The graphite we offer boasts stable and reliable quality, which significantly bolsters the efficient operation of batteries. As for the diaphragms, they strictly comply with industry standards and are pivotal in safeguarding the safety and stability of batteries. Services Technical Consultation: We provide customers with professional guidance on battery material selection. Leveraging our extensive industry experience and in - depth professional knowledge, we assist customers in choosing the most appropriate battery material products tailored to their specific needs. After - sales Service: We have established a comprehensive after - sales service system for battery materials. Should customers encounter any issues during product use, they can reach out to us at any time. We will promptly offer solutions and support to ensure that customers can utilize our products without a hitch.

DFEL key facts

Ticker symbol

DFEL

Market tier

Pink

Sector

Industrials

Industry

Electrical Equipment & Parts

Headquarters

Shenzhen, China

Country of incorporation

US

Year of incorporation

1999

Employees

10

Estimated market cap

$5.25M (as of May 9, 2025)

Shares outstanding

15,079,324

Reporting standard

Alternative Reporting Standard

Audit status

Unaudited

Fiscal year end

12/31

Latest filing

Annual Report (Dec 31, 2024)

China TMK Battery Systems, Inc. leadership

• Jinchao Yao — President, Manager
• Ni Wu — CEO
• Yi San — Secretary
• Yongsen Li — Manager

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