https://www.reuters.com/article/us-uber-grab/grab-in-advanced-talks-to-buy-some-of-ubers-southeast-asia-businesses-source-idUSKCN1GK0V0 >Southeast Asia's biggest ride-hailing firm, Grab, is in advanced negotiations to buy parts of Uber Technologies Inc's business in the region and offer a stake in itself, said a source with knowledge of the talks, in a move that would mark Uber's pullback from its global expansion.