cofco, which controls eight listed firms, is considering combining units and selling peripheral businesses to raise profitability.bloombergbeijingcofco corp, china&rsquos largest food company, has invited investment banks to submit proposals for a possible group restructuring, people with knowledge of the matter said.the beijingbased firm, which controls eight listed companies, will consider combining units and selling peripheral businesses to improve profitability, according to the people.possibilities that may be proposed include cofco&rsquos cookingoil producer china foods divest