[Exclusive-China Evergrande in talks with Xiaomi consortium to sell EV unit stake-sources] Embattled Chinese property developer Evergrande Group is in talks with smartphone maker Xiaomi and Shenzhen state-backed investment firms as it looks to sell part of a 65 percent stake in its electric vehicle (EV) unit, three sources said. China’s central bank, banking and insurance regulator summoned executives of Evergrande to a meeting on Thursday and issued a rare warning that the company ought to reduce its debt risks and prioritise stability. The Evergrande New Energy Vehicle (NEV) Group had a market capitalisation of $12.5 billion on Thursday and...