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A company concluded a sales contract with B, stipulations in contract as: packed in cartons of 30 tins each. A supplied the whole goods, but part of which were packed in cartons of 24 tins. B refused to take the whole goods. Did B have rights to do so? An export company in China used to export red beans to Singapore. The S/C describes the goods as "Grade 3 Red Beans". At the moment, "Grade 3 Red Beans" were out of stock. The exporter decided to ship "Grade 2" (which is superior to that of Grade 3) instead of "Grade 3" to meet the demand of the market. On the invoice marked "Grade 2 Red Beans, price as per Grade 3". The exporter had thought that the importer would not show any objection about this. However, on the contrary, the importer refused to make the payment because of "nonconformity between documents and terms of the credit". What was more, the importer even demanded compensation for the loss caused by the exporter's failure to ship according to the agreed specification. Suppose the invoice value is USD20,000.00 CIF Incoterms 2010. The shipped cargos are covered by All Risks as per PICC clause at the rate of 1.5%. Then: (1) How much are the insured amount and the insurance? (2) If half of the goods have been damaged during the carriage because of natural calamities, how much does the insurance company should compensate to the insured? (3) If half of the goods have been damaged when they were being unloaded because of war, how much does the insurance company should compensate to the insured? Company CH exported to a Nigerian company a consignment of torches totaling about 60000 pounds. The relevant L/C from Nigeria stipulated, "the goods shall be shipped by six installments from June to November" Company CH shipped the goods in compliance with the prescription of the L/C in June, July and August, and obtained the relevant installment payments. However, in September the goods could not be loaded on board because a heavy typhoon was attacking the coastal area. Then, company CH decided to continue with the shipment in October. When the documents were sent to Nigeria, the Issuing Bank was justified in refusing payment? Please refer to relative stipulations in the UCP 600 and explain the reasons