Tongguan Copper Foil Secretary and CFO Wang Junlin Dies at 56; Market Cap RMB 109.6 Billion
Wang Junlin, board secretary and chief financial officer of Tongguan Copper Foil, died of illness on August 15, 2026, at age 56. He held no company shares. His duties were temporarily assumed by Chairman Gan Guoqing and Manager Yin Dawei. The company, which makes high-precision electronic copper foil, saw its shares close at RMB 132.22 on August 17, giving a market cap of about RMB 109.6 billion, up 285.7% year-to-date. Wang had served in various finance roles since 2008, becoming CFO in 2023 and board secretary in April 2023.
Tongguan Copper Foil announced on August 17 that its board secretary and chief financial officer, Wang Junlin, died of illness on August 15, 2026, at the age of 56. The announcement stated that as of the disclosure date, Wang Junlin did not hold any shares in the company.
On August 14, the company had announced that it received notice from Wang Junlin's family that he was unable to perform his duties normally due to health reasons. The company has made arrangements for related work, with the board secretary duties temporarily assumed by Chairman Gan Guoqing and the chief financial officer duties temporarily assumed by the company's manager and director Yin Dawei.
Public information shows that Wang Junlin was born in 1970, a Chinese national, with a bachelor's degree and a mid-level accountant qualification. From May 2008 to May 2013, he served as head of the finance department of Wuhu Tongguan Electric Co. , Ltd. From June 2013 to June 2017, he was deputy head of the planning and finance department of Tongguan Copper Foil. From July 2017 to June 2020, he served as head of that department. From July 2020 to February 2023, he was deputy chief accountant and head of the planning and finance department. From February 2023 to April 2023, he served as chief financial officer. From April 2023, he served as board secretary and chief financial officer.
Tongguan Copper Foil is mainly engaged in the research, development, manufacturing, and sales of high-precision electronic copper foil, with products covering two categories: PCB copper foil and lithium battery copper foil. As of the close on August 17, the company's share price closed at RMB 132.22, with a total market capitalization of approximately RMB 109.6 billion, and a cumulative increase of 285.7% since the beginning of 2026.