BOSTON—Nearly one in four exports from Massachusetts is a medical device, making the state No. 1 in the nation in share of exports of medical devices as a percentage of total exports, according to a report by the Massachusetts Medical Device Industry Council. 

SPRINGFIELD, MA—A Chinese company that is the largest manufacturer of passenger railroad cars in the world is going to build a $55 million, 125,000-square foot assembly plant here that could employ up to 300 people.

ANDOVER, MA—Schneider Electric has opened its new North American research and development center here. The center is expected to house approximately 750 employees across all disciplines of Schneider Electric’s business segments.

LOWELL, MA—Raytheon Co. and the University of Massachusetts Lowell will establish a $3 million joint research facility here dedicated to future technologies for radar and communication systems.

WORCESTER, MA—Cogmedix, a contract manufacturer of medical devices, has added 8,500 square feet to its assembly plant here.

WESTBOROUGH, MA—Contract manufacturer Columbia Tech has opened a new assembly plant here.

BEDFORD, MA—Solar wafer manufacturer 1366 Technologies has opened the doors of a new 42,000 square-foot assembly plant here. The facility will employ 100 people.

POCASSET, MA—Hydroid Inc., a maker of autonomous underwater vehicles, has begun constructing a new assembly plant and research facility here. The company will hire at least 21 new workers next year.