<p>Nesma Holding has announced it has agreed to be a &ldquo;diamond sponsor&rdquo; of the 8th annual Jeddah marathon, to be held on Mar. 28, 2011. With more than 6,000 participants expected to turn up for this year&rsquo;s event, the Jeddah Marathon aims to promote a healthy lifestyle, while also acting as a financial and promotional vehicle for the Al Birr Charitable Society in Jeddah.</p>