To Whom It May Concern:

This certification is to comply with the recent US prohibitions implemented under Section 889 of the National Defense Authorization Act (NDAA).

As an authorized representative of the Manufacturer, Shenzhen YCX Electronics Co. Ltd., I hereby certify that products listed in the Appendix, the Manufacturer,

Shenzhen YCX Electronics Co. Ltd.,

has ensured these products do not include any parts or components from the following companies (or from any subsidiary or affiliate of these companies):

When you participate in order products from the YCX website, we collect your postal address and telephone number for logistical purposes.

When we ship your order, your postal address will be given to our logistics partners to facilitate delivery.

• Huawei Technologies Company (including HiSilicon Technologies Co., Ltd.)
• ZTE Corporation
• Hytera Communications Corporation
• Hangzhou Hikvision Digital Technology Company
• Dahua Technology Company

This certification is made on behalf of the Manufacturer identified above

Note: The Manufacturer is responsible to enforce this certification effective immediately and until further notice.