化工ETF(159870)盘中净申购1.3亿份，制冷剂硫磺PVC等多个细分行业已有明确供给限制

Group 1 - The chemical sector is experiencing fluctuations in line with the broader market and commodity prices, with a notable net subscription of 131 million units for the chemical ETF (159870) [1] - The chemical industry has historically shown strong cyclicality, with demand spanning various essential sectors, maintaining steady growth despite significant supply shocks [1] - Supply-side changes are significant, with the EU facing high energy costs leading to a continued exit from the market, while the U.S. is attempting to bring manufacturing back, albeit at high costs [1] Group 2 - The implementation of a dual control system for carbon emissions in 2024 will impose strict supply limitations on several industries, including refrigerants, chromium salts, sulfur, PVC, and high-energy-consuming sectors [1] - Specific industries facing clear supply restrictions include refrigerants due to the Montreal Protocol, chromium salts driven by increasing demand for high-temperature alloys, and sulfur as a byproduct of refining [1] - The chemical ETF (159870) closely tracks the CSI segmented chemical industry theme index, which consists of large-cap, liquid stocks from various sub-industries [2]