|  Name of Entity                                                                                   |   |  Jurisdiction of Incorporation or Organization  |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|-----------------------------------------------------------|
| PDF Solutions GmbH                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |   | Germany                                                   |
| PDF Solutions KK                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   | Japan                                                     |
| PDF Solutions S.A.S.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   | France                                                    |
| PDF Solutions Semiconductor Technology (Shanghai) Co. Ltd.                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |   | China                                                     |
| PDF Solutions Semiconductor Technology (Korea) Limited                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   | Korea                                                     |
| PDF Solutions Semiconductor Technology Taiwan Ltd.                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |   | Taiwan                                                    |
| PDF Solutions Semiconductor Technology (Singapore) Pte. Ltd.                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   | Singapore                                                 |