Shipping contract changes under...
(Note: The sentence seems incomplete. If you provide more context or the full sentence, I can give a more accurate translation.)
If you meant "Shipping contract changes under certain conditions" it could be translated as:
**"Shipping contract changes under certain conditions."**
http://www.cnmining.org/news/?id=788 FORTESCUE Metals Group’s plans to renegotiate its shipping contracts have resulted in ongoing discussions with shipping companies and could also trigger legal action.