The export curbs, aimed at hampering China’s ability to develop the most advanced chips and equip its military, were ratcheted up Friday. The rules will affect sales of wafer-fabrication equipment and related parts and services, Applied Materials said.
Applied Materials Inc., the biggest maker of chip-manufacturing equipment, slashed its forecast for the fourth quarter, warning that new export regulations rippling through the industry will hurt its sales to China.
The company estimates that the rules will reduce sales by about US$400 million ($574.69 million) in the period, according to a statement Wednesday. It now expects revenue of about US$6.4 billion, plus or minus US$250 million, compared with a previous forecast of roughly US$6.65 billion.

