The splitting of Daewoo Heavy Industries Co., the shipbuilding and machinery unit of South Korea's ailing Daewoo Group, into three firms should boost shareholder value, analysts said. A shareholders meeting earlier in the week approved a plan to split the company into Daewoo Shipbuilding and Marine Engineering Co., machinery maker Daewoo Heavy Industries and Machinery Ltd., with Daewoo Heavy Industries Co. taking the remaining operations. Daewoo Heavy is among the 12 Daewoo Group firms put under a creditors-led debt restructuring program in late August last year as the group was teetering on the brink of insolvency. "The split of Daewoo Heavy is a painful but inevitable choice for shareholders," said an analyst at Daishin Securities.