Multiple web search results report that the US sanctioned a China-based operator and others due to alleged links to Iran's oil trade. Specifically, the sanctions target Qingdao Haiye Oil Terminal and mention the general context of alleged Iranian oil trade links.

Two of the three web search results explicitly state that the State Department targeted the Qingdao Haiye Oil Terminal for allegedly importing 'tens of millions of barrels of sanctioned Iranian crude oil.'

Two of the three web search results mention that Li Xinchun, a Chinese national, was placed on the sanctions list and is described as the president of a China-based oil terminal, a Hong Kong-based vessel management company, and a British-based commercial manager.

Two of the three web search results confirm the general terms of the sanctions: that US-held assets of the designated entities are frozen, and Americans are barred from doing business with them. While the specific context varies (e.g., Pompeo vs. Iran sanctions), the mechanism of asset freezing and barring business remains consistent across the evidence.