China imports most of Iran's oil exports about 1.8 million barrels a day which flow through the Straits of Hormuz. Iran is heavily dependent on these exports for oil revenues that support it's economy. All Asian economies are heavily dependent on the oil flowing from Saudis, UAE and Iran through the Straits. For Iran it would mean the loss of oil revenues needed to support its economy if the Straits are shut down. Iran's central bank says it get $67 billion from oil exports 90% of it going to China alone. 82% of oil imports of Asian countries from Saudi, UAE, Qatar and Iran sources go though the Straits. The US is not dependent on the Straits- less than 10% of its oil. Also true of Germany. The US would have to use air strikes to prevent any mining of the waters seaway, and China, US, Japan, India would join in combined effort to keep all sea navigation open for international shipping. ...