7月22日主题复盘 | 雅江电站概念持续高潮，煤炭午后大涨，固态电池也有表现

Market Overview - The market experienced strong fluctuations throughout the day, with all three major indices reaching new highs for the year. The total trading volume was 1.93 trillion [1] - The concept stocks related to the Yajiang Hydropower Station continued to surge, with companies like China Energy Engineering, China Power Construction, and China Communications Construction hitting the daily limit [1][3] - The coal sector saw significant gains in the afternoon, with companies such as Lu'an Environmental Energy, Jinkong Coal Industry, and Shanxi Coal International also reaching the daily limit [1][6] - In contrast, the innovative drug sector faced a pullback, with Shuyitai falling over 8% [1] Hot Topics Yajiang Hydropower Station Concept - The Yajiang Hydropower Station concept stocks remained strong, with China Power Construction and China Energy Engineering continuing to hit the daily limit, alongside companies like Nankuang Group and Huajian Group achieving three consecutive limits [3] - The total investment for the Yarlung Tsangpo River hydropower project is estimated to exceed 1.2 trillion, significantly higher than many major infrastructure projects in China [4][19] - The construction process for hydropower projects includes various stages such as cofferdam construction, diversion works, and dam construction, which are expected to drive demand for related equipment [4] Coal Sector - The coal sector collectively surged in the afternoon, with Lu'an Environmental Energy, Jinkong Coal Industry, and Shanxi Coal International all hitting the daily limit [6][7] - Recent expectations of a "de-involution" trend have strengthened, leading to a bullish outlook on coal prices, especially with the peak coal consumption season approaching [8] - Insurance capital is expected to overflow into coal dividend stocks due to increasing premiums and policy-driven asset allocation [8] Solid-State Battery Sector - The solid-state battery sector saw a recovery, with companies like Dexin Technology and Haopeng Technology hitting the daily limit, while Xianhui Technology rose over 15% [9][10] - The chairman of Hive Energy announced plans to trial production of semi-solid-state batteries by the fourth quarter of 2025 [10] - The semi-solid-state battery technology is viewed as a suitable transitional solution, with a projected domestic installation volume of 2.2 GWh in the first half of 2024 [10] Other Active Sectors - Other sectors such as photovoltaic, military industry, and robotics showed localized activity, while consumer goods and pharmaceuticals experienced notable declines [11]