President Donald Trump’s maiden sanctions package targeting a handful of vessels carrying Iranian oil stopped short of the “maximum pressure” campaign his administration had pledged, according to shippers and analysts.

The sanctions have affected one very-large crude carrier (VLCC) and two Aframaxes that the Treasury Department said helped move Iranian oil to China.

According to the state department, the sanctions target a network that is bringing “illicit revenue to the Iranian military” through a front company, Sepehr Energy. Also included are a shadow tanker fleet and management companies that facilitate the supply of oil to China,