* * * Is Big Diansheng a state-owned enterprise?

* * * Big Diansheng is not a state-owned enterprise. * * * Da Electro-acoustics, namely * * Da Electro-acoustics Co., Ltd., the controlling shareholder is Weifang Aisheng Acoustics Technology Co., Ltd., and the actual controller is. * * * Da Electro-acoustic Co., Ltd. was established on April/day, 200 1 year, with legal representative and head office in Weifang, Shandong.

* * * Da Electro-acoustic Co., Ltd. was listed on the Shenzhen Stock Exchange on February 7, 20 12. The lead underwriter and listed sponsor are both securities companies, and Da Electro-acoustic Co., Ltd. is a manufacturer and service provider of electro-acoustic components and components.

The predecessor of * * * Da Electro-acoustic Co., Ltd. is Weifang * * Da Telecom Co., Ltd., which is a Sino-foreign joint venture jointly invested by Weifang Hi-tech Electronics Co., Ltd. and China Hongkong Industrial Co., Ltd. On July 4th, 2008, the original Weifang * * * Da Telecommunications Co., Ltd. was changed to Shandong * * * Da Electro-acoustic Co., Ltd.

* * * Da Electro-acoustic Co., Ltd. is mainly engaged in the production and sales of acoustic components, semiconductor micro-electromechanical products, high-precision electronic product molds, automatic production equipment for electronic products, electro-acoustic components related to mobile phones, automobiles and computers or other derivative products.

* * * Shareholders of Da Electro-acoustic Co., Ltd.: Weifang Aisheng Acoustics Technology Co., Ltd., Ning Ying, Chen Shouneng, Huang Xueliang, etc.