UKIP leader Nigel Farage is expected to deliver the opening speech when the party's Welsh Conference gets underway in Port Talbot later.
UKIP members and activists are set to gather at the Margam Orangery from midday.
Nathan Gill, the returning MEP for Wales, is also expected to attend, along with other senior MEPs and candidates for next year's General Election.
Nigel Farage has blamed "open-door immigration" and the state of the M4 motorway for running late to a meeting with Ukip supporters.
As UKIP's Welsh conference begins, the party's hoping to build its support in Wales following recent election successes