At the end of the Modern Slavery and Human Trafficking Statement (2022). It stated that it was signed Ken Gilmartin who is the Chief Executive, on 16 August 2022.

this is on pg 9

The name of an individual (Ken Gilmartin) and the title (CEO )appears at the end of the statement. But there isn't an indication of that being a signature.

p. 9 - Methodology has changed and we now accept signatures where only the name is printed (and no signature image included)