建筑与工程行业周报：中国化学己二腈装置入选重大技术装备推广应用指导目录，关注项目后续积极进展

Investment Rating - The report maintains a "Positive" investment rating for the industry [8] Core Insights - The report highlights that adiponitrile, a key intermediate for producing PA66, is seeing a significant increase in domestic supply, which is expected to stabilize the raw material foundation for PA66 development in China [5][6] - The domestic production capacity for adiponitrile is projected to peak soon, with existing capacity at 800,000 tons/year and planned capacity reaching 2.55 million tons/year by 2024 [5][6] - The report emphasizes the shift of global supply focus for adiponitrile, hexamethylenediamine, and PA66 towards China, driven by high domestic production enthusiasm and numerous new capacity plans [5][6] Summary by Sections Domestic Capacity - As of the end of 2022, China's adiponitrile production capacity reached 800,000 tons/year, with an additional 480,000 tons/year under construction and a planned capacity of 2.55 million tons/year [5][6] - Key projects include those by China Chemical Tianchen Qixiang (200,000 tons/year), Huafeng Group (200,000 tons/year), and Invista (400,000 tons/year) [5] Demand - The report notes that the production of PA66 is expected to expand significantly following the launch of the China Chemical adiponitrile project in 2022, which will enhance the industry's scale [6] - By July 2024, there are approximately 8.235 million tons/year of PA66 projects under construction or planned in China, indicating robust future demand [6] Price Outlook - The report suggests that adiponitrile prices, previously high due to overseas monopolies, are likely to return to reasonable levels as domestic production increases [6] - The improved supply situation for hexamethylenediamine, a key derivative of adiponitrile, is expected to lead to significant price reductions [6]