The web search results mention Moody's downgrading China's credit rating and the general context of downgrades, but none of the provided evidence specifically confirms the exact sequence: 'downgraded from Aa3 to A1 in 2017' AND 'lowered its outlook to negative in December 2023' as a single, verifiable narrative across multiple sources. The evidence shows a downgrade occurred, but the specific dates and rating changes mentioned in the claim are not corroborated by multiple independent sources.

The claim that Moody's stated China's economic fundamentals and institutional strength had 'materially increased' is only present in the context of the web search results, but it is not independently corroborated by a second source, nor is it explicitly quoted as a direct statement from Moody's in the provided evidence set.

The web search results provide information regarding the Strait of Hormuz and the 2026 Iran war context, which relates to energy price increases. However, none of the evidence sources provide a specific claim stating that 'In the first quarter of the year, China posted better-than-expected gross domestic product growth of 5 per cent, defying the impact of energy price increases caused by the blockading of the Strait of Hormuz.' This specific GDP figure and its direct causal link to the Strait of Hormuz blockage are not corroborated by multiple sources.