国海证券研报指出，万华化学2025H1受产品价差收缩影响，业绩有所下滑。子公司经营方面，2025H1匈牙利BC公司亏损0.9亿元，较2024年下半年大幅减亏。公司作为全球聚氨酯龙头企业，规模优势显著。聚氨酯板块：万华福建MDI将技改扩能新增70万吨/年，预计2026Q2完成；万华福建第二套33万吨/年TDI项目预计2025年建成投产。石化板块：2024年，万华蓬莱一期PDH等项目完成建设并实现一次性开车成功。2025年初，万华烟台25万吨/年LDPE装置一次性开车成功，2025年4月3日，万华化学烟台产业园乙烯二期120万吨/年乙烯装置一次开车成功，乙烯一期项目进行乙烷进料改造。精细化学品及新材料板块：ADI业务深化全球布局；MS树脂装置一次性开车成功，成功填补国内高端光学级MS规模化生产空白；维生素A全产业链贯通。公司是聚氨酯行业龙头，规模优势显著，维持“买入”评级。
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