中国5月PPI月率 -0.4%，前值-0.4%。

Group 1 - The core point of the article indicates that China's Producer Price Index (PPI) for May decreased by 0.4%, matching the previous month's decline of 0.4% [1] Group 2 - The PPI data suggests ongoing deflationary pressures in the manufacturing sector, which may impact profit margins for companies in this industry [1] - The unchanged PPI rate from the previous month indicates a potential stagnation in price levels, reflecting broader economic conditions [1] - This trend may influence investment strategies, as companies may face challenges in passing on costs to consumers [1]