International specialist bank and asset manager Investec said it has received a number of approaches from parties interested in acquiring its Rensburg Fund Management (RFM) subsidiary.The business was acquired as part of the takeover of Rensburg Sheppards in June.Investec has appointed Fenchurch Advisory Partners to report on the strategic options for RFM.Fenchurch will assess and test the appetite from third parties for acquiring RFM through a structured process. Fenchurch will also consider the prospects for the continued growth of the business under its existing ownership structure.Any transaction would have regard to the best interests of all stakeholders of RFM, including its clients and employees, the company said.