China's WuXi Biologics said on Monday it will sell its vaccine facility in Ireland to U.S. drugmaker Merck & Co for about $500 million, ahead of potential U.S. legislation that would restrict business for Chinese biotech companies.

In Ireland, WuXi Biologics has sold a new vaccines plant to Merck & Co. for €500 million ($521 million). The New Jersey company was a natural buyer of the facility as it was the lone client WuXi Biologics served at the site in Dundalk, executing a 20-year contract to produce vaccines worth $150 million annually.

WuXi Biologics sells its vaccine production facility in Ireland to Merck & Co for $500m in the wake of changing regulation in the US.

China's WuXi Biologics said on Monday it will sell its vaccine facility in Ireland to U.S. drugmaker Merck & Co for about $500 million.

WuXi Biologics (OTCPK:WXIBF) is reportedly selling its vaccine facility in Ireland to Merck (NYSE:MRK) as part of a previously announced plan to divest some of its assets. The China-based contract research,