| Li (Jielin) Chief Executive Officer | Acquisition at price 1.91 per share. | Direct | 218,275 | Nov 1, 2022 |
| Yu (Yi Fang) Vice Chairman | Acquisition at price 1.88 per share. | Direct | 188,030 | Oct 26, 2022 |
| Li (Chao Wang) Chairman of the Board | Sale at price 2.69 per share. | Direct | 1,740,001 | Feb 11, 2022 |
| Li (Chao Wang) Chairman of the Board | -- | Direct | -- | Feb 8, 2022 |
| Li (Chao Wang) Chairman of the Board | Acquisition at price 2.64 per share. | Direct | 1,318,350 | Oct 25, 2021 |
| Yu (Yi Fang) Vice Chairman | Acquisition at price 2.71 per share. | Direct | 271,080 | Oct 25, 2021 |
| Li (Jielin) Chief Executive Officer | Acquisition at price 2.56 per share. | Direct | 255,750 | Jul 19, 2021 |
| Yu (Yi Fang) Vice Chairman | Acquisition at price 2.65 per share. | Direct | 265,090 | Jul 19, 2021 |
| Michalski (Johann Christoph) Director (Non-Executive) | Sale at price 3.59 per share. | Direct | 657,756 | Apr 29, 2021 |
| Yu (Yi Fang) Vice Chairman | Acquisition at price 2.76 per share. | Direct | 276,410 | Dec 3, 2020 |
| Yu (Yi Fang) Vice Chairman | Acquisition at price 2.83 per share. | Direct | 282,870 | Nov 25, 2020 |
| Michalski (Johann Christoph) Director (Non-Executive) | Acquisition at price 2.68 per share. | Direct | 120,748 | Oct 29, 2020 |
| Li (Jielin) Chief Executive Officer | Acquisition at price 2.80 per share. | Direct | 560,020 | Oct 23, 2020 |
| Yu (Yi Fang) Vice Chairman | Acquisition at price 2.80 per share. | Direct | 280,440 | Oct 23, 2020 |
| Li (Chao Wang) Chairman of the Board | Sale at price 3.77 per share. | Direct | 584,117 | Aug 19, 2020 |
| Li (Chao Wang) Chairman of the Board | Sale at price 3.79 per share. | Direct | 948,674 | Aug 18, 2020 |
| Li (Chao Wang) Chairman of the Board | -- | Direct | -- | Aug 14, 2020 |
| Li (Chao Wang) Chairman of the Board | -- | Direct | -- | Aug 13, 2020 |
| Michalski (Johann Christoph) Chief Executive Officer | Sale at price 3.96 per share. | Direct | 554,610 | Jul 27, 2020 |
| Tsui (King Fai) Independent Non-Executive Director | Sale at price 3.95 per share. | Direct | 553,098 | Jul 23, 2020 |
| Yu (Yi Fang) Vice Chairman | Sale at price 3.91 per share. | Direct | 938,592 | Jul 23, 2020 |
| Dong (Yi Ping) Chief Technology Officer | Sale at price 3.89 per share. | Direct | 933,959 | Jul 23, 2020 |
| Michalski (Johann Christoph) Chief Executive Officer | -- | Direct | -- | Jul 22, 2020 |
| Tsui (King Fai) Independent Non-Executive Director | -- | Direct | -- | Jul 20, 2020 |
| Yu (Yi Fang) Vice Chairman | -- | Direct | -- | Jul 20, 2020 |
| Dong (Yi Ping) Chief Technology Officer | -- | Direct | -- | Jul 20, 2020 |
| Li (Chao Wang) Chairman of the Board | Sale at price 2.57 per share. | Direct | 1,790,802 | Feb 27, 2020 |
| Li (Chao Wang) Chairman of the Board | -- | Direct | -- | Feb 24, 2020 |
| Michalski (Johann Christoph) Chief Executive Officer | Acquisition at price 2.54 per share. | Direct | 202,848 | Feb 20, 2020 |
| Michalski (Johann Christoph) Chief Executive Officer | -- | Direct | -- | Feb 19, 2020 |
| Michalski (Johann Christoph) Chief Executive Officer | Sale at price 2.53 per share. | Direct | 202,415 | Feb 19, 2020 |
| Li (Chao Wang) Chairman of the Board | -- | Direct | -- | Feb 17, 2020 |
| Li (Chao Wang) Chairman of the Board | Sale at price 2.61 per share. | Direct | 653,324 | Feb 17, 2020 |
| Li (Jielin) Director (Executive) | -- | Direct | -- | Feb 11, 2020 |
| Li (Jielin) Director (Executive) | Sale at price 2.61 per share. | Direct | 209,080 | Feb 11, 2020 |
| Michalski (Johann Christoph) Chief Executive Officer | Acquisition at price 1.81 per share. | Direct | 61,662 | Dec 3, 2019 |
| Li (Chao Wang) Chairman of the Board | Acquisition at price 1.71 per share. | Direct | 513,239 | May 7, 2018 |
| Michalski (Johann Christoph) Chief Executive Officer | Acquisition at price 1.67 per share. | Direct | 73,330 | May 4, 2018 |
| Soderstrom, Ulf Alternate Director | -- | Direct | -- | May 11, 2017 |
| Soderstrom, Ulf Alternate Director | Sale at price 1.98 per share. | Direct | 434,962 | May 11, 2017 |
| Michalski (Johann Christoph) Chief Executive Officer | Other at price 1.62 per share. | Direct | 63,082 | Feb 1, 2016 |
| Hui (Chin Tong Godfrey) Director (Independent) | -- | Direct | -- | Jul 23, 2015 |
| Dong (Yi Ping) Chief Technology Officer | Sale at price 2.26 per share. | Direct | 20,387,016 | May 27, 2015 |
| Li (Chao Wang) Chairman of the Board | Sale at price 2.26 per share. | Direct | 2,111,335 | May 27, 2015 |
| Yu (Yi Fang) Vice Chairman | Sale at price 2.26 per share. | Direct | 20,387,016 | May 27, 2015 |
| Yu (Yi Fang) Vice Chairman | Sale at price 1.42 per share. | Indirect | 29,748,844 | Nov 7, 2013 |
| Dong (Yi Ping) Chief Technology Officer | Sale at price 1.42 per share. | Indirect | 29,748,844 | Nov 7, 2013 |
| Li (Chao Wang) Chairman of the Board | Sale at price 1.42 per share. | Indirect | 29,748,844 | Nov 7, 2013 |
| Chiu (Bun) Alternate Director | -- | Direct | -- | Nov 6, 2013 |
| Dong (Yi Ping) Chief Technology Officer | -- | Indirect | -- | Jun 30, 2012 |