According to DRAMeXchange, a research division of TrendForce, 2013 has been a critical year for the DRAM industry. Benefiting from the rising smartphone and tablet sales, the first tier DRAM manufacturers gradually shifted their attention to Mobile DRAM, a move which caused the eventual decline in PC DRAM production; In the periods following the fire accident at SK Hynix's Wuxi plant, 4GB module contract prices rose from US$17 to US$33, and gave DRAM manufacturers greater room for profit.