Mark Porter
CEO (DTUK)Mark joined DTUK Ltd. in 2025 as CEO and Managing Director.
Prior to joining DTUK, Mark worked for over 30 years within the power industry for E.ON and Ørsted, and since 2009 with wind generation projects across the value chain and global markets.
Gary Thornton
B Eng (Hon), C Eng, FIET Technical Director Diamond Transmission UK Limited (DTUK)Gary has been Technical Director since 2013 managing the technical aspects of DTUK’s offshore transmission networks (OFTOs) in the UK (Blue Transmission and Diamond Transmission Partner projects).
A director of Blue Transmission and Diamond Transmission Partners.
Matthew Pitts
Commercial Director Diamond Transmission UK Limited (DTUK)Matthew has been the Commercial Director since 2017 managing the financial and commercial aspects of DTUK’s offshore transmission networks (OFTOs) in the UK (Blue Transmission and Diamond Transmission Partner projects). Matthew is a Director on all Blue Transmission companies.
Prior to joining DTUK Matthew spent 25 years at EY where after qualifying as a chartered accountant, his focus was on project financing.
Monica Mihwa Hwang
BSc (HON), FCCA Financial Controller Diamond Transmission UK Limited (DTUK)Monica has been a Senior Accountant since 2014 and is currently Financial Controller managing the financial and accounting aspects of DTUK group including DTUK’s offshore transmission networks (OFTOs) in the UK.
Prior to joining DTUK Monica spent 9 years in accounting practices where she gained financial and audit experience.