化工ETF(159870)涨超2%，制冷剂R404A、R507陆续提升报价

Group 1 - The core viewpoint of the news is that the prices of refrigerants R404A and R507 are increasing, driven by demand from overseas markets, particularly as A5 countries approach the end of their quota baseline year, leading to a surge in imports of high GWP refrigerants and boosting exports from China [1] - The external trade price of refrigerants has risen to approximately 35,000 yuan per ton, while domestic prices have increased to around 49,000 yuan per ton, indicating a growing market atmosphere as companies actively raise prices [1] - The overall inventory in the industry is at a near two-year low, combined with production constraints due to quota limitations and high industry concentration, resulting in widespread reluctance among companies to sell, which further supports price increases [1] Group 2 - The CSI Sub-Industry Chemical Theme Index (000813) has seen a strong increase of 1.86%, with constituent stocks such as Haohua Technology rising by 5.27%, Yara International by 4.68%, and Boyuan Chemical by 4.26% [1] - The Chemical ETF (159870) has risen by 2.10%, with the latest price reported at 0.88 yuan [1] - As of December 31, 2025, the top ten weighted stocks in the CSI Sub-Industry Chemical Theme Index include Wanhua Chemical, Salt Lake Shares, and others, collectively accounting for 45.31% of the index [2]