Inflation on an annual basis hit 27% in June. The central bank widened the band it alloed the dong to rise or fall against the dollar each day from 1% to 2% and announced a devaluation of 2% in June 2008. At this time the dollar buys 19000 dong on the black market compared to the official rate of 16600 dong, and the official rate is climbing up to the higher unofficial rate. A large part of the inflation is caused by a flood of foreign investment and bank loans to state owned companies, and the spending by state owned companies. The state owned companies like the Vietnam Shipbuilding Industry Group are controllinng their spending. Some of the inflationary influx is investment from foreign manufacturers trying to escape rising costs in China, showing the risks if this and other factors are not carefully managed. Recently Greenspan advised Vietnamese premier Nguyen Dung to mop up the liquidity surge and restrict spending by state owned firms.