TESTING and calibration company Exova has bought emission testing firm Catalyst Environmental for an undisclosed sum.

The deal will add 10 to Exova's Scottish workforce. Along with the Catalyst site at East Kilbride, there are 166 other people working across Edinburgh, Glasgow and Aberdeen.

Catalyst has a further 48 staff and five locations around the UK and Ireland.

Mike Pooley, European managing director for Exova, said the deal brought new technical services into the company.