Raytheon's Paveway IV guided bombs have been sold to Saudi Arabia and have been used in its airstrikes on Yemen. (Defense News, 16.7.2015)
Raytheon has stating that Paveway IV guided bombs are "Developed in Harlow, with the advanced guidance system produced in Glenrothes". (airforce-technology.com, 16.4.2014)
http://www.defensenews.com/story/breaking-news/2015/07/16/britain-diverts-bombs-destined--raf--help-saudi-fight--yemen/30236031/ http://www.airforce-technology.com/news/newsraytheon-secures-first-paveway-iv-export-contract-4215449