The new stock: Copper foil solution provider Tongbo Technology applies for listing, with investment from BYD

The mainland electrolytic copper foil solution provider Tongbo Technology has submitted a listing application to the Hong Kong Stock Exchange, with Guojin Securities (Hong Kong) acting as the sole sponsor. Preliminary prospectus information shows that the company focuses on the design, research and development, production, and sales of high-performance electrolytic copper foil. The lithium battery copper foil produced can be used in various lithium batteries for new energy vehicles, energy storage systems, and consumer electronics. According to market research data, based on sales volume in 2024, Tongbo Technology is the second-largest producer of high-performance lithium copper foil in China, with a market share of 13%.

Tongbo Technology was established in 2016 and introduced BYD (01211.HK) and the fund Yibin Chendao, funded by CATL (03750.HK), as investors in 2022, with BYD holding approximately 3% of its pre-IPO shares.

As of the end of September 2025, Tongbo Technology recorded revenue of nearly RMB 2.85 billion, a year-on-year increase of 24.4%, while net profit during the period grew nearly 116% year-on-year to RMB 40.498 million. The company expects that the funds raised from the listing in Hong Kong will be used to expand production capacity and enhance research and development capabilities