Yesterday, a unit of United Technologies Corp. (UTX), UTC Fire & Security (UTCFS), increased its stake in GST Holdings Ltd. (GST), the leading fire-alarm system provider in China. UTCFS, through its affiliate United Technologies Far East Ltd. (UTFE), first acquired 9.9% of outstanding shares of GST in 2006, and then increased it to 29% until 2008. [...] (UTX) United Technologies Reaches China