Workers at a Birmingham factory run by electronics giant Fujitsu staged a walkout today in protest against job losses.
Members of the Communication Workers Union at the Solihull Parkway site were striking for four hours from noon, hitting two shifts.
The union said the action went ahead after the failure of talks aimed at saving 140 jobs set to be lost because of the transfer of work to the United States.
Fujitsu said the decision to move its printed circuit board operations to a plant in Texas had been extremely difficult.
The union put together a presentation that provided for alternative work arrangements it said would lead to a substantial amount of manufacturing work remaining in the West Midlands, which had been rejected by the company.
Deputy general secretary Andy Kerr said: "If this work leaves the Fujitsu plant in Birmingham, it will be another nail in the coffin of manufacturing in the West Midlands. We will to fight to secure the future of CWU members."