Trades that mean an unfair profit to the higher ranked player by falling outside the following range of ratios will be considered as Pushing cases:
3:2:1 Where each unit of deuterium is worth 2 units of crystal or 3 units of metal.
2:1:1 Where each unit of deuterium is worth 1 unit of crystal or 2 units of metal.
He only cant do those trades if the person hes selling the metal to is higher ranked then he is.