Yanchang Petroleum International Limited (HKEX: 00346) is a Hong Kong-listed oil and gas company operating across both the upstream and downstream sectors of the petroleum industry. On the upstream side, the company engages in the exploration, development, and exploitation of oil and gas fields through its Novus oilfield blocks. On the downstream side, it operates three business lines: refined oil distribution and trading through its Henan Yanchang subsidiary, international petrochemical trading through its Shenzhen operations, and petrochemical activities in the Zhejiang Free Trade Zone.

The company is a subsidiary of Yanchang Petroleum Group — one of China's oldest and largest state-owned oil enterprises, with roots dating back over a century to the first oil well drilled in China in 1907. With stable upstream production and steady growth in its downstream trading business, Yanchang Petroleum International continues to expand its presence across China's oil and gas value chain