| Date | Owner | Type | Security | Price | Units | Value | |
|---|---|---|---|---|---|---|---|
| Zhou Bin Chief Executive Officer | P | Common Stock | |||||
| Xiangtian Aerodynamic Electricity Ltd. | S | Common Stock | |||||
| Zhou Bin Chief Executive Officer | P | Common Stock | |||||
| Zhou Bin Chief Executive Officer | P | Common Stock | |||||
| Zhou Bin Chief Executive Officer | P | Common Stock |