https://www.reuters.com/article/us-usa-china-smic-exclusive/exclusive-amid-shortage-u-s-suppliers-to-chinese-chip-giant-smic-struggle-to-get-export-licenses-idUSKBN2AW18B >The U.S. government has been slow to approve licenses for American companies like Lam Research and Applied Materials to sell chipmaking equipment to China semiconductor giant SMIC, several sources said, as the impact from global shortage spreads.