Singapore state investor Temasek Holdings will join Singapore Airlines to acquire a stake of up to 25% in China Eastern Airlines, Hong Kong's South China Morning Post reported on Friday, citing unnamed people familiar with the deal.

Singapore Airlines, the world's top passenger airline by market value, has set a HK$6 billion (US$766 million) limit on its investment in the deal, which would give it a stake of less than 20%, the report said, citing unnamed sources.