中密控股：国内石化领域存量市占率约20%，增量市场达60%~70%

Group 1 - The core viewpoint of the article indicates that Zhongmi Holdings has a market share of slightly over 20% in the existing domestic petrochemical market [1] - In recent years, the company has achieved a market share of 60% to 70% in large projects within the incremental market of the domestic petrochemical sector [1] - As the incremental business gradually transitions to the existing market, there remains potential for the company to further increase its market share in the petrochemical sector [1]