Air Products and Chemicals is separating the roles of CEO and chair, as it comes under pressure from an activist investor to lay out a succession plan for the top job.

The industrial gas company, headquartered in Upper Macungie Township, issued a letter to shareholders Friday, ahead of their annual meeting on January 23.

Approximately two years of work came to fruition for the City of Berryville on Tuesday, Jan. 14, when Messer, a leading industrial gases company, announced a strategic investment of more than $70 ...