This picture was made public by detectives looking into a sexual assault that occurred at the Carmarthen train station in May.
At around 8.30 pm on Friday, 15 May, a man approached a woman at the station and directed a series of sexualised comments to her.
He then sexually attacked her before she exited the station.
The individual in the picture is someone detectives would like to talk to because they believe he may have information that could aid their investigation.
Anyone who identifies him is encouraged to contact British Transport Police by texting 61016 or calling 0800 40 50 40, and to mention reference 703 of 15 May.
Crimestoppers can also receive anonymous information at 0800 555 111.
For the latest updates and offender details, follow us on the Offender Register Facebook Page. If you or anyone you know has been affected by the individuals highlighted on this website, please report them to the Police on 101 (999 in an emergency) or visit their online resources for further details on how to report a crime. You can also report to Crimestoppers if you wish to remain completely anonymous. There is help available on our support links page.