Recently, in Yantai area of Shandong Free Trade Zone, a batch of imported air conditioning compressor parts worth about 6 million yuan were declared and released on the same day with a tariff guarantee insurance policy, and customs duty guarantee procedures were handled at zero cost. Up to now, Qingdao Customs has helped 1800 batches of imported goods with a value of 2.62 billion yuan enjoy the customs' policy of "releasing taxes first, paying taxes collectively" at zero cost by applying the new mode of "customs guarantee" customs clearance facilitation.