The buyer, representing a large food factory in Vietnam, is seeking a supplier for imitation mozzarella cheese (topping mozzarella) with characteristics suitable for cheese balls and cheese sticks. They require cheese that melts and stays spreadable throughout its 12-month minimum shelf life. Quotations should be provided based on the percentage of vegetable fat or other specifications. The buyer requests DDP pricing to a warehouse in Ho Chi Minh City, Vietnam, and prefers to receive a few kilograms of samples for testing before confirming the contract.