West Pharmaceutical Services Inc. intends to close its plastic components manufacturing plant in Montgomery, which is near Williamsport in central Pennsylvania.

The decision, which the company said in a statement would "improve operating efficiencies," will cut about 170 jobs, starting in January. West said it will transfer production to other sites in the United States. Here's a list of its locations.

The company also said Tuesday that it will downsize operations in Cornwall in the United Kingdom, eliminating 150 full-time jobs over the next two years.

Here's what West chairman and CEO Donald E. Morel Jr. had to say in a statement:

The plans announced today will reduce the manufacturing capacity devoted to product lines that no longer support sustainable, competitive operations, and will unfortunately result in the loss of a number of jobs over time. These are difficult decisions that fall most heavily on our employees in these locations, and we will be providing support that should ease the burden placed on them.

West said it will incur charges of between $18 million and $21 million in connection with this restructuring. It expects to realize about $6 million in savings in 2011 with full annual savings of $12 million attained in 2013.

The Lionville-based company makes all sorts of parts, such as stoppers and vials, for use with injectable drugs.

Overall, the pace of layoffs nationwide has slowed. But the last week has seen several Philadelphia-area companies announce major downsizings. Express Scripts Inc. said it now plans to close its Street Road operations in Bensalem on Feb. 1, eliminating 535 jobs. A separate Express Scripts site on Marshall Lane in Bensalem is set to close on Dec. 16, cutting 365 jobs.

Comcast Corp. said it will close a cable-division headquarters in Oaks, Montgomery County, in a move affecting 150 workers.

And Sunoco Inc., which agreed to sell its Toledo, Ohio, refinery last week to PBF Energy, will be cutting its corporate staff by 175 people with most of those cuts coming in Philadelphia.