Exhibit 99.1 Cipher Mining Provides Third Quarter 2024 Business Update Completed acquisition of Barber Lake data center site, which includes 250 acres of land in West Texas, a newly constructed high-to-mid voltage substation, approvals for 300 MW, and agreements necessary to participate in the ERCOT market Completed acquisition of Reveille data center site, which includes approvals for 70 MW and potential to expand to 200 MW, with energization targeted for 2027 Signed option agreements to purchase or lease ...