Industry Overview - Ethylene Oxide (EO) is a crucial organic chemical raw material and intermediate, ranking third among ethylene derivatives after polyethylene and polyvinyl chloride [1][2] - In 2010, China's EO production capacity was approximately 1.26 million tons, which surged to 4.79 million tons by 2019, achieving a compound annual growth rate (CAGR) of 16% [5] - From 2020 to 2023, China's EO production capacity maintained a growth rate of over 14%, projected to reach 9.44 million tons by 2024, with a year-on-year increase of 8.51% [5] Production and Supply Chain - The upstream of the EO industry includes raw materials such as ethylene and oxygen, while the midstream involves EO production, primarily through the direct oxidation of ethylene [3] - The downstream applications of EO include a variety of products such as polycarboxylic acid superplasticizers, non-ionic surfactants, and others, serving multiple sectors including real estate, infrastructure, and agriculture [3] Regional Distribution - EO production in China is concentrated in East China, South China, and Northeast China, with these regions accounting for over 85% of total capacity [7] - East China, in particular, has become the most significant production base, contributing over 55% of the total capacity due to its robust chemical industry infrastructure and market demand [7] Trade Dynamics - China's EO exports have shown a rapid growth trend, with export volume reaching 971 tons in 2024, a year-on-year increase of 45.14% [9] - The country has maintained a net export status, with zero imports in 2023-2024, indicating that domestic production fully meets market demand [9] Consumption Market - The consumption structure of EO is evolving, with polycarboxylic acid superplasticizers being the largest market, although its share is declining from 61% in 2020 to 37% in 2024 due to a slowdown in the real estate sector [11] - Non-ionic surfactants are experiencing strong growth, increasing their share from 24% in 2024, driven by demand from the daily chemical and agricultural sectors [11] Competitive Landscape - The market share of private enterprises in the EO industry has increased from 33.79% in 2019 to 48.24%, while state-owned enterprises have seen a decline [13] - This shift is attributed to the competitive advantages of private firms in raw material procurement and flexible resource allocation [13] Future Trends - The EO production capacity is expected to continue expanding, with an anticipated addition of 1 million tons by 2025, leading to a total capacity exceeding 9 million tons [19] - The industry is also moving towards green processes and high-end transformation, with a focus on low-carbon catalysts and bio-based EO production methods [20]

从产业链结构看，丁腈橡胶行业产业链上游为原材料供应环节，主要包括丙烯腈、丁二烯等；产业链中 游为丁腈橡胶生产供应环节，代表厂商有兰州石化、宁波顺泽、镇江南帝、金浦英萨、朗盛台橡等；产 业链下游为丁腈橡胶应用需求领域，主要包括军工、汽车、航空、密封件、发泡材料等。 内容概要：丁腈橡胶是一种由丙烯腈和丁二烯单体聚合而成的共聚物，具有极好的耐油性和较高的耐磨 性、耐热性以及强的粘接力。近年来，在管带制品、发泡材料和密封制品等下游市场推动下，我国市场 丁腈橡胶表观需求量整体呈现上升态势，已达到30万吨，此外，受国内市场供需失衡影响，行业对外依 存度虽仍保持在25%左右，但已较2017年的35.41%有了明显下降，产业保持健康高质量发展态势。 相关上市企业：齐翔腾达（002408）；道恩股份（002838）等 相关企业：南京金浦英萨合成橡胶有限公司；阿朗台橡（南通）化学工业有限公司；镇江南帝化工有限 公司；宁波顺泽橡胶有限公司；中国石油兰州石化公司；河北丁腈橡胶科技有限公司；蒲城瑞鹰新材料 科技有限公司；江苏亚泰化工有限公司等 关键词：产业链；丁腈橡胶产能；丁腈橡胶产量；丁腈橡胶进出口规模；丁腈橡胶表观需求规模；丁腈 ...