Chinese President Xi Jinping appears Friday as guest of honour at Russia's showcase economic forum, as the two neighbours present a united front in the face of shared troubles with the US.
Xi arrived in Moscow on Wednesday for a three-day visit with Vladimir Putin and described the Russian leader as his "best friend" during a cosy meeting at the Kremlin.
To end the trip, Xi and his host will appear at a plenary session of the annual Saint Petersburg Economic Forum, which Moscow hopes will woo foreign investors despite an uncertain business climate.
Xi is set to present China's ideas on sustainable development and multilateral cooperation, Beijing said ahead of his appearance.
The 2019 forum "will illustrate very clearly just how bi-polar the world has become," said Chris Weafer, a senior partner at the Macro Advisory consulting firm.
"In the same week that President Trump will be having tea with the Queen in London, President Putin will be hosting President Xi in Saint Petersburg."
"China is taking time to ramp up investments in Russia," said Charles Robertson, chief economist at Renaissance Capital. "It wants to feel secure about the long term, it doesn't want to rush into it."
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