高端聚烯烃是支撑新能源、高端装备、医疗健康和先进包装的关键材料，主要包括茂金属聚乙烯/聚丙烯（mPE/mPP）等大宗产品的高端牌号，以及聚烯烃弹性体（POE）、环烯烃树脂（COC/COP）、乙烯-乙烯醇共聚物（EVOH）等特种树脂。

High-end polyolefins are key materials that underpin new energy, high-end equipment, medical health, and advanced packaging. They mainly include high-end grades of bulk products such as metallocene-based polyethylene/polypropylene (mPE/mPP), as well as special resins like polyolefin elastomers (POE), cycloolefin resins (COC/COP), and ethylene-vinyl alcohol copolymers (EVOH).

近年来，我国在该领域取得显著突破，多个产品实现国产化，但产能释放不足、自给率偏低、供需缺口较大等结构性矛盾依然比较突出。

In recent years, China has made significant breakthroughs in this field, with multiple products achieving domestic production. However, problems such as insufficient capacity release, low self-sufficiency rate, and a large gap between supply and demand still remain prominent.

聚烯烃弹性体国产化替代加速

Accelerated domestication and substitution of polyolefin elastomers

POE是一种性能均衡的热塑性弹性体，具有高弹性、易加工以及良好耐候性和相容性等特点，主要用于光伏胶膜、汽车零部件和发泡材料等领域，其中光伏胶消费量占比约40%。全球POE产能超过400万吨/年。

POE is a performance-balanced thermoplastic elastomer, featuring high elasticity, easy processing, excellent weather resistance and compatibility. It is mainly used in fields such as photovoltaic adhesive films, automotive components and foaming materials. Among them, the consumption of photovoltaic adhesives accounts for approximately 40%. The global production capacity of POE exceeds 4 million tons per year.

我国POE产业起步虽晚，但发展迅速。独石化气相法POE生产工艺，综合能耗约为传统溶液法的60%，污染物排放更少，碳管控压力更低。随着核心技术持续突破，2025年国内累计产能已达68万吨，自给率由2024年的9.2%提升至2025年的25.5%。产能快速释放表明国产替代进程正在加快，但自给率仍不足三成，进口替代空间依然较大。

Although the POE industry in our country started relatively late, it has developed rapidly. The gas-phase POE production process of Dushen Petrochemical has a comprehensive energy consumption of approximately 60% of that of the traditional solution method, with less pollutant emissions and lower carbon control pressure. With the continuous breakthrough of core technologies, the cumulative domestic production capacity has reached 680,000 tons by 2025, and the self-sufficiency rate has increased from 9.2% in 2024 to 25.5% in 2025. The rapid release of production capacity indicates that the process of domestic substitution is accelerating, but the self-sufficiency rate is still less than 30%, and there is still a large space for import substitution.

国产环烯烃树脂进入扩能阶段

Domestic cycloolefin resins have entered the stage of capacity expansion.

COC/COP是拥有环状结构的非晶性透明高分子材料，具有高透明、低双折射、生物相容性好等特点，主要用于光学、包装、医药等领域，其中光学领域消费占比约54.9%。目前，全球COC/COP产能约9.4万吨/年。

COC/COP is a non-crystalline transparent polymer material with a ring structure, featuring high transparency, low birefringence, and good biocompatibility. It is mainly used in fields such as optics, packaging, and medicine. Among them, the consumption in the optical field accounts for approximately 54.9%. Currently, the global production capacity of COC/COP is about 94,000 tons per year.

我国COC年消费量约2.7万吨，随着拓烯科技3000吨/年装置、阿科力千吨级产线投产，COC率先实现国产化。但供需缺口依然较大，同时，下游医疗与光学领域的市场准入认证周期较长，构成规模化放量的主要软壁垒。COP技术难度更高，目前尚未实现产业化突破。

The annual consumption of COC in our country is approximately 27,000 tons. With the commissioning of the 3,000-ton/year production line of Topene Technology and the 1,000-ton-scale production line of Akoli, COC has become the first to achieve domestic production. However, the supply-demand gap remains significant. Additionally, the market access certification process for the downstream medical and optical sectors is lengthy, which constitutes the main soft barrier for achieving large-scale production. The COP technology is more difficult and has not yet achieved industrialization breakthroughs.

茂金属聚乙烯产能快速扩大

The production capacity of metallocene-based polyethylene has rapidly increased.

mPE是包装薄膜的重要材料，食品包装膜、缠绕膜和农膜合计消费占比约66%，全球产能超过2400万吨/年。

mPE is an important material for packaging films. The combined consumption of food packaging films, stretch films and agricultural films accounts for approximately 66% of the total. The global production capacity exceeds 24 million tons per year.

我国2025年mPE产能达641万吨/年，同比增长35.5%；产量74.8万吨，同比增长108.4%，产能和产量均实现高速增长，但平均开工率过低。解决这一问题，需要从催化剂国产替代、原料稳定供应、工艺优化以及产品差异化等方面进行系统突破。

In 2025, the mPE production capacity in our country will reach 6.41 million tons per year, with a year-on-year growth of 35.5%. The output will be 748,000 tons, with a year-on-year increase of 108.4%. Both the production capacity and output have achieved rapid growth, but the average utilization rate is too low. To solve this problem, systematic breakthroughs need to be made in aspects such as the domestic substitution of catalysts, stable supply of raw materials, process optimization, and product differentiation.

茂金属聚丙烯急需国产化突破

The domestication breakthrough of metallocene polypropylene is urgently needed.

mPP是传统聚丙烯向高性能化发展的重要方向，主要用于注塑、纺丝及无纺布、膜料等领域，其中注塑消费占比约60%，全球年产量约30万吨。

mPP is an important direction for the development of traditional polypropylene towards higher performance. It is mainly used in fields such as injection molding, spinning, non-woven fabrics, and film materials. Among them, the consumption in injection molding accounts for approximately 60%, and the global annual production is about 300,000 tons.

我国mPP尚处于产业化初期，主要依托现有聚丙烯装置小批量生产，2025年国内产量仅1.09万吨，而消费量近10万吨。作为高端无纺布和下一代锂电池隔膜等领域的关键原料，mPP的国产化突破对下游产业链自主可控具有重要战略意义。

The mPP industry in our country is still in its early stage of industrialization. It is mainly produced in small batches using existing polypropylene production facilities. In 2025, the domestic output will only reach 10,900 tons, while the consumption will be nearly 100,000 tons. As a key raw material for high-end non-woven fabrics and next-generation lithium battery separators and other fields, the breakthrough in the domestic production of mPP has significant strategic importance for the independent control of the downstream industrial chain.

乙烯-乙烯醇共聚物供给进入扩能阶段

The ethylene-ethylene oxide copolymer supply has entered the expansion stage.

EVOH是一种具有优异阻隔性、透明性和耐化学性的热塑性共聚物，主要用于阻隔性包装膜、汽车油箱和多层复合容器等领域，其中阻隔性包装膜消费占比超过54%。2025年全球EVOH产能约为21万吨/年。

EVOH is a thermoplastic copolymer with excellent barrier properties, transparency and chemical resistance. It is mainly used in barrier packaging films, automotive fuel tanks and multi-layer composite containers, among others. The consumption of barrier packaging films accounts for over 54% of the total. The global production capacity of EVOH is approximately 210,000 tons per year in 2025.

国内仅川维化工实现量产，产能1.2万吨/年，自给率约30%。随着川维化工2.4万吨/年和皖维高新6000吨/年项目建设推进，EVOH供给能力有望逐步提升，但短期内仍难满足国内市场需求。

Only Chuanwei Chemical in China has achieved mass production, with an annual production capacity of 12,000 tons and a self-sufficiency rate of approximately 30%. With the progress of the 2.4 million-ton/year project of Chuanwei Chemical and the 600-ton/year project of Wanhui High-tech, the supply capacity of EVOH is expected to gradually increase. However, in the short term, it still cannot meet the domestic market demand.