丙烯、聚烯烃、纯苯、苯乙烯：市场供需及价格走势

Group 1 - The core viewpoint of the article indicates that the propylene market is experiencing slight price increases due to improved demand from downstream products and reduced supply from unexpected plant shutdowns [1] - Propylene prices are currently low, but the operational enthusiasm of production facilities is rising, which is expected to boost propylene demand [1] - Polyolefin futures are maintaining a low range, with polyethylene showing increased production due to fewer maintenance shutdowns and strong demand from agricultural and packaging sectors [1] Group 2 - The pure benzene market is experiencing fluctuations, with prices supported by improved transactions in Shandong, although downstream buying interest is declining [1] - Domestic production of pure benzene is increasing while import volumes are decreasing, leading to a slight reduction in port inventories and easing market pressure [1] - Styrene futures are showing weak fluctuations, with expectations of increased production from a major plant, which may negatively impact the market [1]