On the question of handwriting identification, please consult the following identification agencies:

1, Judicial Appraisal Center, Institute of Judicial Appraisal Science and Technology

Address: Guangfu West Road 1347, Shanghai Tel: 5236 1 148.

2. Judicial Appraisal Center of East China University of Political Science and Law

Address: Wanhangdu Road 1575 Dongfeng Building Tel: 6207 1820

3. Shanghai Anti-counterfeiting Technology Product Evaluation Center

Address: Floor 2, Building 2, No.245 Jiachuan Road, Shanghai Tel: 64768 125

The above reply is for your reference.