Has the buyer received the goods after the seller failed to load the goods? Is there a written receipt for the transfer of goods rights?
I think this is more important. If the rights of the goods have been transferred to the buyer, the liability of the seller shall not exceed 50%.
The buyer should foresee the risks of the goods in the open warehouse, so he should bear at least 50% responsibility.
If the buyer fails to receive and sign for the goods, the ownership of the goods still belongs to the seller, and the seller shall bear all the responsibilities for the subsequent losses;
The buyer may:
1) refused to pay 300XUSD870=USD26 1000.
2) Because the buyer is responsible for transportation, a certain empty warehouse fee can be added.
3) Deduct the loading fee (if it is finally loaded by the buyer).
4) liquidated damages (expected profit and other factors) for the seller's failure to deliver the goods according to the agreed quantity and quality.
Based on the general principle of trading partners, mediation before arbitration is necessary. If mediation fails, arbitration shall be conducted again.