More than 1,000 workers have gone on strike at an IBM factory in southern China, in objection to the terms of their transfer to Lenovo as part of its $2.3 billion acquisition of the US technology giant's x86 server business.
Chinese workers are challenging multi-billion dollar deals involving their employers with increasing frequency, injecting a new element of risk into large cross-border mergers and acquisitions.
(Read more: World's biggest PC maker posts 30% profit jump)
Last year, employees at a Cooper Tire factory in eastern Shandong province seized their plant, ejected managers and withheld financial information when the Ohio-based company agreed to be bought out by Apollo Tyres of India. The industrial action helped wreck what would have been the largest Indian acquisition of a US company.