It is recommended that the company submit patent applications for the various technical approaches discovered during the research and development process, regardless of whether they are feasible for mass production, to prevent competitors from finding new breakthroughs and thus posing competition to itself. It can also prevent the technical approaches from becoming feasible realities in the future and allow patent fees to be charged.

CATL: Dear investors, the core technologies owned by the company are derived from long-term technological investment and independent innovation. As of September 30, 2021, the company and its subsidiaries have a total of 3,566 domestic patents and 589 foreign patents, and a total of 4,310 domestic and foreign patents are being applied for. Thank you for your attention and suggestions.