Recently, Sinopec's Ningbo Zhenhai Refining and Chemical successfully produced qualified 4-methyl-1-pentene for the first time at its propylene dimerization pilot plant, with an average purity exceeding 98%. This achievement breaks Japan's monopoly and overcomes the core raw material bottleneck for ECMO membrane materials.

PriceSeek Analysis on Polypropylene, Bull-Bear Score: 1.5
The article reports that Sinopec has successfully produced high-purity 4-methyl-1-pentene, breaking Japan's monopoly. This product, derived from propylene, serves as a core raw material for ECMO membrane materials. This technological breakthrough is expected to increase domestic demand for propylene (as a feedstock), benefiting the spot price of polypropylene, as potential tightness in propylene supply may strengthen cost support for polypropylene.

Combined with polypropylene futures data (e.g., the 2605 contract closing at 6,870 yuan/ton, up 65 yuan, with open interest increasing by 13,300 lots), market sentiment appears optimistic. This development may further drive futures prices upward, reflected in the increase in long positions and the upward price trend.

Score: 1.5 (between moderately bullish and significantly bullish), as domestic production reduces import dependency, though the potential demand growth is significant, it requires time to materialize.