A disruption at a rival NAND flash chip plant owned by Japan's Kioxia and Western Digital WDC.O in February due to contamination of raw materials led to solid shipments and a quarter-on-quarter price rise for NAND flash chips, analysts said. By Joyce Lee SEOUL, April 27 (Reuters) - South Korea's SK Hynix Inc 000660.KS on Wednesday posted a 116% jump in first-quarter earnings, supported by solid demand from server clients but slightly missing market expectations due to weaker demand for mobile chips. However, slowing demand for mobile chips due to China's COVID-19 lockdown and inflationary pressures weighed on earnings.