化工龙头ETF（516220）涨超1.5%，海外供给收缩与出口需求提振或支撑行业景气

Group 1 - The core viewpoint is that the recent contraction of TDI capacity overseas, influenced by energy costs and environmental policies, has led to a significant increase in China's export share, with May 2025 exports reaching a historical high, up 98.45% year-on-year [1] - Southeast Asia is experiencing demand expansion, maintaining an annual growth rate of 6-8%, becoming a core export market for China [1] - A recent accident at Covestro's German plant has exacerbated supply tightness, potentially leading to further increases in TDI prices [1] Group 2 - Chinese chemical companies are expected to maintain competitive advantages in cost, technology, and delivery cycles, allowing them to expand their global market share and reshape the industry landscape in the long term [1] - The chemical leader ETF (516220) tracks a sub-sector chemical index (000813), which reflects the overall market performance and development trends of China's chemical industry [1] - Investors without stock accounts can consider the Guotai CSI Sub-sector Chemical Industry Theme ETF Connect C (012731) and A (012730) [1]