Group 1 - The core point of the article is that China Railway Industry (600528.SH) reported a significant decline in new contract amounts for the first half of 2025, with a total of 21.41 billion yuan, representing a year-on-year decrease of 19.7% [1] - In the second quarter, the total amount of major contracts signed was 775 million yuan, accounting for approximately 2.67% of the company's projected revenue for 2024 [1] - The company signed shield tunneling rental contracts worth 163 million yuan and shield sales contracts worth 106 million yuan during the second quarter [1]