Baton Rouge specialty chemicals maker Albemarle Corp. has completed a previously announced $6.2 billion cash-and-stock deal for Princeton, New Jersey-based Rockwood Holdings Inc.

Albemarle President and Chief Executive Officer Luke Kissam said the deal positions the company for long-term growth, expanding the combined firm’s reach and diversity of products.

Rockwood produces the lithium and lithium compounds used in batteries for smartphones and hybrid and electric vehicles.