Bloomberg reports that US senators from both sides of the aisle are urging Apple CEO Tim Cook to commit by August 21 to not using memory chips from Chinese suppliers CXMT and YMTC. In the days that followed, the Journal reported that Apple had already been seeking assurances from the administration to purchase chips from CXMT. At the same time, the Financial Times reported that Apple was in negotiations to purchase chips from YMTC. The report also detailed Micron’s efforts to persuade the administration to reject Apple’s request, arguing that allowing Chinese suppliers into Apple’s supply chain could undermine domestic memory production. This is not the first time Apple has tried to source memory chips from YMTC.