MKS Instruments of Andover, Massachusetts, has agreed to acquire advanced electroplating company Atotech. The $16.20/share deal gives Atotech an enterprise value of about $6.5 billion. Private equity firm Carlyle Group, which currently owns 79% of Atotech, has committed to vote in favour. The transaction should be completed in Q4, subject to regulatory approval in Jersey, where Atotech is registered, and other customary closing conditions.