绿醇生产技术新突破，石化ETF（159731）或受益行业发展

Group 1 - The core viewpoint of the news highlights the performance of the Petrochemical ETF (159731), which has seen a net inflow of 1.463 billion yuan over the past 20 trading days, reaching a total scale of 1.8 billion yuan, both figures marking new highs since its inception [1] - The "BESTm" technology for producing green methanol from biogas has successfully passed its pilot test, producing green methanol that meets shipping fuel standards, filling a technological gap in the international market [1] - The production cost of green methanol using the BESTm technology is estimated to be over 30% lower than traditional synthesis routes, indicating significant cost advantages [1] Group 2 - The Petrochemical ETF (159731) and its linked funds closely track the CSI Petrochemical Industry Index, with the basic chemical industry accounting for 60.02% and the oil and petrochemical industry for 32.43%, allowing participation in the profit recovery of downstream chemical products [2] - The long-term narrative for the industry is improving due to optimization of industry structure and adjustments in supply and demand [2]