Terms of sales: ex-works, fas,fob,CIF

Sure, here are the definitions of the terms you asked for:

1. Ex-Works (EXW): This term means that the seller has fulfilled their obligation by making the goods available at their premises for the buyer. The buyer bears all costs and risks involved in taking the goods from the seller's location to the desired destination.

2. Free Alongside Ship (FAS): This term means that the seller delivers the goods to the buyer when they are placed alongside the vessel at the named port of shipment. The buyer is responsible for all costs and risks of loss or damage to the goods from that moment.

3. Free on Board (FOB): This term means that the seller delivers the goods on board the vessel nominated by the buyer at the named port of shipment. The risk of loss or damage to the goods is transferred from the seller to the buyer when the goods are on board the vessel.

4. Cost, Insurance, and Freight (CIF): This term means that the seller delivers the goods on board the vessel and the risk of loss or damage to the goods is transferred from the seller to the buyer when the goods are on board. However, the seller must also pay the costs and freight necessary to bring the goods to the named port of destination and provide insurance against the buyer's risk of loss or damage to the goods during the carriage.

These terms are part of Incoterms (International Commercial Terms) which are a series of pre-defined commercial terms published by the International Chamber of Commerce (ICC) relating to international commercial law.