【Important Notice】ChainCatcher APP Change of Operating Entity Announcement

Dear ChainCatcher users:

Due to business development and strategic adjustments, as of August 7, 2023, the operating entity of the ChainCatcher APP will officially change from Beijing Block Check Information Co., Ltd. to Hainan Catcher Future Media Culture Co., Ltd..

Please rest assured that this change of entity will not affect any services and rights you enjoy:

• Service remains unchanged: The original product service content, service quality, and operation team will remain the same.

• Data security remains unchanged: We will continue to strictly adhere to the Privacy Policy and Service Agreement, and in accordance with relevant laws and regulations, we will adopt security measures of the same standard to protect your personal information.

• Rights remain unchanged: The rights and methods of exercising your rights as a user will remain unchanged.

If you continue to use the ChainCatcher APP, it means you have read and agreed to this change of operating entity. If you have any objections to this change or encounter any issues during the transition, please contact us through the following means, and we will handle it properly for you:

• Customer service contact: business@chaincatcher.com

Thank you for your continued trust and support!

Hainan Catcher Future Media Culture Co., Ltd. September 24, 2025