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BiographyMr Mark Williamson is Non executive Director at National Grid PLC. Mr Mark Williamson is a U.S. Citizen and has been Vice President of Marketing for TOCCO... |
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| Date | Designation | Entity | Entity Description | Country |
|---|---|---|---|---|
| 1996 | Arabian American Development Co | Company In Materials - Non-Chemicals | United States | |
| 2012 | National Grid PLC | Company In Utilities & Renewables | United Kingdom |