Polygroup Trading Limited

FCC Confidential Authorization

2019-05-24

FEDERAL COMMUNICATIONS COMMISSIONS

Authorization and Evaluation Division

7435 Oakland Mills Road

Columbia, MD 21046

Subject: Confidentiality Request regarding application for certification of

FCC ID: 2APJZ-ALX190301

In accordance with Sections 0.457 and 0.459 of the Commission's Rules, Polygroup Trading Limited hereby requests long-term confidential treatment of information accompanying this application as outlined below:

• Block Diagram
• Schematics
• Operation Description

The above materials contain proprietary and confidential information not customarily released to the public. The public disclosure of these materials provides unjustified benefits to its competitors in the market.

Sincerely Yours,

Signature: [Handwritten Signature]

Print Name: Daniel Liu

Title: Compliance Manager