Exhibit 4.24

Supplementary Agreement to

The Amended and Restated Equity Pledge Agreement

This supplementary agreement (hereinafter, the “Agreement”) is entered into by and among the following parties in Beijing on April 7, 2015.

Party A: AirMedia Technology (Bejing) Co., Ltd.

Party B: Beijing Shengshi Lianhe Advertising Co., Ltd.

Party C: AirMedia Group Co., Ltd.

(All the above parities are referred to collectively as the “Parties” and individually as a “Party”)

WHEREAS,

(1) under the Amended and Restated Equity Interest Pledge Agreement and its supplementary agreements (hereinafter, the “Original Pledge Agreement”) executed by Party A, Party B, Party C and other shareholders of Party C, Party B has pledged all 96.76% of the equity interest of Party C it held to Party A.

(2) for the development of business, Party B proposes to transfer 5% of the equity interest of Party C to Shenzhen Liantronics Co., Ltd.

NOW, THEREFORE, through amicable negotiations, Party A, Party B and Party C hereby agree as follows:

1. Party A agrees that Party B transfers 5% of the equity interest of Party C to Shenzhen Liantronics Co., Ltd. (the “Equity Interest Transfer”). After the completion of the Equity Interest Transfer, the remaining 91.76% of the equity interest of Party C held by Party B shall remain subject to the Original Pledge Agreement. Party A and Party B shall promptly register for such pledge.

2. Upon the effectiveness of this Agreement, in the event of any inconsistency between the Original Pledge Agreement and this Agreement, this Agreement shall prevail among Party A, Party B and Party C. Other matters that are not covered in this Agreement shall remain subject to the Original Pledge Agreement.

3. This Agreement is effective and binding upon the signatures or stamps of all Parties have been signed or affixed. This Agreement is executed in three copies. Each party shall hold one copy. Each copy shall be equally binding.

[THE REMAINDER OF THIS PAGE IS INTENTIONALLY LEFT BLANK]

[Signature Page]

Party A: AirMedia Technology (Bejing) Co., Ltd. (sealed)

Party B: Beijing Shengshi Lianhe Advertising Co., Ltd. (sealed)

Party C: AirMedia Group Co., Ltd. (sealed)