1.CIF=C+I+F=500, where C = FOB, I = c *110% * 0.5% = 0.0055c, and F=80 are substituted into the formula to calculate c = fob = 4/kloc-. And given CIF=60, f = cif * 2% =1.2i = cif *1%= 0.6, fob = 58.2 fobc3% = 58.2 *1.03 = USD 59.95 (2). If the current foreign exchange rate is 6.83, the profit rate = (58.2 * 6.83-395)/395 *100% = 0.63% (3) is not valid; The main focus of the problem is whether it belongs to partial shipment: according to UCP600' s provisions on partial shipment, several sets of transport documents transported on the same voyage with the same means of transport will not be regarded as partial shipment at the same time, even if the shipment date indicated on the transport documents is unreasonable or the ports of loading, unloading, receiving or sending are different. If the presentation contains several sets of transport documents, the latest shipment date will be regarded as the shipment date. It can be analyzed from this provision that the given conditions do not belong to partial shipment, and the issuing bank has no right to refuse to pay. Please correct me if the above analysis is wrong!