Fosun International Ltd., the Chinese insurance-to-tourism conglomerate, is seeking investors for a minority stake in its reinsurance business ahead of a possible initial public offering, according to people familiar with the matter. The sale of shares in Peak Reinsurance Co. could raise about $300 million, the people said, asking not to be identified because the discussions are private. The investment would come ahead of a potential IPO of the reinsurer in Hong Kong, said the people. Fosun, which owns about 87 percent of Peak Re, is pushing ahead with asset disposals in an attempt to improve its credit profile from its...