We can ship the cargo to you at 3000MT in first lot. But you must identity destination port and time at least 45 days or 60 days after signing contract. We will stock the cargo at warehouse in Vietnam. You can send your people to take the sample for testing. And after he tests the sample and you satisfy with the cargo we will ship the cargo. then you pay the balance. We can negotiate about the details later. We hope your boss does not change his mind yet.