The book to bill ratio of PCB (BB value)North American rebounded,the BB value of PCB orders in North America in January is 1.01, a slight increase than the previous month, to maintain growth in orders,but out of the volume decline. The BB value of hard boards rose to 1.01, FPC BB value rose to 1.05.On one hand, after the inventory adjustment at third and fourth quarters of last year, downstream inventory reached to the lower level, the rebound of orders reflects the willingness of manufacturers out of stock covering, on the other hand, ipad3 will come out in March,driving the industrial chain orders more. Overall, the value of the BB is back up to above 1.0, showing the industry's confidence has been restored, and eventually end consumer response to new.The new orders of U.S. computer and electronic products rebounded slightly,the U.S. EMS shipments index in December 2011 continued steady. Semiconductor shipments fell sharply in December, close to low point in 2011; PCB shipments continue to fall, magnitude deeper than in November. Computer and electronic products new orders have fallen sharply in November, bottoming signs of a slight rebound.In January PCB revenue upstream rebounded in taiwan, midstream and downstream declined. Upstream raw materials including fiberglass cloth, copper foil have 10% increase in prices,CCL will also increase prices. Besides,downstream customers cover the inventory to increase orders, in the upstream vendors are expected this bottoming out.