Samsung said in a statement: Appropriate measures have been taken safely for the facilities and chips in production with prior notice, and we will resume production once energy is restored.
Austin Energy confirmed that it had ordered its biggest customer to stop, although it is not known how long the company might spend without electricity.
Home stop orders have been issued as 200,000 Austin homes have been cut off by Uri.
It is unclear at the moment whether Apple’s Mac Pro production, which is made in Austin, has also been affected.
Other major Austin manufacturers, including NXP Semiconductors and Infineon Semiconductors, have also been reported to have shut down.
The shutdown could cost Samsung millions of dollars, especially if manufacturing operations suddenly stop.
An unplanned outage in March 2018 of 30 minutes at a Samsung plant in South Korea damaged tens of thousands of chips, equivalent to 11 percent of its NAND flash chip output for that month.
However, given Samsung initially alerted before shutdown, it should have avoided any damage.
Samsung’s Austin plant began mass manufacturing memory chips in the late 1990s, and over the years has produced DRAM and NAND chips and portable processors.
The Samsung website notes that the factory mainly focuses on producing chips using 14nm technology.
A recent report stated that the company is studying building a new plant for manufacturing chips in the region, capable of producing advanced processors such as 3 nanometers.
Austin Energy said it had initially asked industrial users to try to conserve energy, and had also tried to use backup generators to help the situation.
In the end, however, the manufacturers had to be asked to close completely, and the company said: We reached out to our biggest customers, and in partnership with them, they shut down their facilities.