EU referendum: 'We need stability' - Newport's IAC boss
Plans to hold a referendum on EU membership are unhelpful for businesses in Wales and could lead to reduced investment, warns an industry body.
CBI Wales chair Chris Sutton said the proposed vote in 2017 was creating "uncertainty".
David Cameron pledged to renegotiate a "better deal" for the UK and hold an "in-out" referendum by the end of 2017.
Chancellor George Osborne said the UK would be "constructive but resolute" in talks with EU leaders.
BBC Wales business correspondent Brian Meechan spoke to businesses on both sides of the referendum argument.
Peter Lewis, managing director of engineering firm Industrial Automation and Control (IAC) in Newport, employs 75 people.
He is worried a vote to pull out of the EU could be a setback when manufacturing needs a boost.
12 May 2015