Industry Overview - The pipeline transportation industry is experiencing new development opportunities due to continuous national investment in infrastructure and steady growth in energy consumption demand, with the market size steadily increasing [1][16] - The market size of China's pipeline transportation industry is projected to grow from 14.7 trillion yuan in 2017 to 29.8 trillion yuan in 2024, with a compound annual growth rate (CAGR) of 10.62% [1][17] Development Stages - The pipeline transportation industry has undergone four stages: initial development (1958-1969), rapid development (1970-1987), steady development (1988-1995), and accelerated development (1996-present) [7][8] Policy Support - The government has implemented multiple policies to promote the development of the pipeline transportation industry, including optimizing logistics structures and establishing unified pricing mechanisms for natural gas pipeline transportation [9][10] Industry Chain - The pipeline transportation industry chain consists of upstream raw materials (steel, cast iron, plastic, valves, pumps), midstream construction and operation, and downstream product transportation and distribution [11][12] Competitive Landscape - The competitive landscape of the pipeline transportation industry is characterized by a tiered structure, with large state-owned enterprises dominating the core market, regional companies in the second tier, and numerous small enterprises in the third tier [18] Key Enterprises - Major companies in the industry include China Petroleum Pipeline Bureau, National Oil and Gas Pipeline Group, and others, which play significant roles in pipeline construction, operation, and management [19][20] Development Trends - Future trends in the pipeline transportation industry include increasing pipe diameters to enhance transport capacity, extending transport distances to meet resource distribution needs, and expanding the types of transported materials to include solid materials like coal and minerals [21][22][23]