SemiconductorsRising chipmaker turns tight supply of commodity-grade DRAM to its advantage in Q2CXMT's main products include DDR5 memory, which has seen a jump in prices in recent months. © ReutersKYOHEI SUGASeptember 11, 2026 02:03 JSTTOKYO -- Chinese chipmaker ChangXin Memory Technologies (CXMT) has raced to the lead among global competitors in terms of profit margin, signaling a shift in a sector dominated by South Korean, U.S. and Japanese suppliers.