| Company | Timeline | Status | |
| PQ Intermediate Limited Director • Director | 1 Aug 2015←5 Years→31 Mar 2021 | Active | |
| PQ Holdings I Limited Director • Director | 1 Aug 2015←5 Years→31 Mar 2021 | Active | |
| PQ Silicas UK Limited Director • Director | 1 Aug 2015←5 Years→31 Mar 2021 | Active | |
