BBC reported that Johnson & Johnson has announced plans to close its surgical suture manufacturing plant in Livingston, threatening about 400 jobs.
It is launching a consultation process with employees of its subsidiary Ethicon, which runs the site.
Johnson & Johnson’s medical devices division (JJMD) said the move was part of a global restructuring effort announced in January 2016.
The restructuring is in part designed to streamline operations, it added.
The UK and Scottish governments said they were working with Johnson & Johnson to try to secure the future of the site.
The Livingston plant produces 5%-6% of JJMD’s global output of surgical sutures. If the plant closure goes ahead, production will shift to much bigger sites in Texas, Brazil and Mexico, the company said.
In 2003, Ethicon shed 850 jobs after scaling back its facilities for manufacturing surgical sutures and needles in Edinburgh.