An Australian company A sent a letter of offer of wool on July 11th with the details of quantity, quality and price, and said response should be sent back within 15 days. On July 12th company A sent off samples and catalog to a China factory M. On July 19th, factory M got the offer and faxed to A company the next day about the accepting of the offer. However, company A already sold the goods to another company on July 18th. Factory M requested arbitration for compensation from company A. Should company A compensate factory M? Try to find the relevant supporting clauses in the CISG