In 2023, the overall industry performance of SPD products in the Chinese market was close to 3.5 billion yuan, down 0.5% from 2022.

The leading enterprises in the market are Zhongguang, Wangao and Jinli, with a capacity of more than 250 million, phoenix, Tianjin Zhongli, Dehe and Guangxi Di Kai rank second with a capacity of more than 100 million. As a professional manufacturer of surge protection device, Jinli has accumulated a large number of application cases and on-site solutions in the fields of new energy, electric power, railway, rail transit, etc., to ensure the high reliability and safety of users.