5,100 Antminer S19 Pro miners from Bitmain
Company: Riot
What the later record shows
Delivered; the record does not say when
All S19-Pro orders appear to have been received during 2021, since only S19j-Pro and S19XP miners remained outstanding at year-end. However, 2,000 S19-Pro miners were still outstanding at June 30, 2021, and the passages do not say which contract they belonged to. On-time delivery by June 30, 2021 therefore cannot be confirmed.
“outstanding executed purchase agreements for the purchase of miners from Bitmain for a total of 15.500 miners (2,000 new S19-Pro model miners and 13,500 new S19j-Pro model miners), scheduled to be delivered through October 2021”
2021-08-22 · Riot 10-Q filed 2021-08-23 View cached copy (2026-09-13)Live source ↗
“During 2021, we received 34,608 additional Antminer model S19-Pro miners pursuant to purchase orders with their manufacturer, Bitmain”
2022-11-22 · Riot 10-K/A filed 2022-11-23 View cached copy (2026-09-13)Live source ↗
Checked October 10, 2026 against filings, releases and reporting published after the claim was made. Quotes are verbatim from the linked documents.
The claim, verbatim
On August 25, 2020, Riot entered into a follow-on sale and purchase agreement with Bitmain for 5,100 additional Antminer S19 Pro digital currency miners for approximately $11.2 million, with deliveries scheduled between February 28, 2021 and June 30, 2021
Source (primary)
Riot 8-K filed 2020-08-27 (SEC EDGAR, sec_filing)
View cached copy (2026-09-13)Live source ↗
Quote: “entered into an additional sale and purchase agreement (the "Follow-On Agreement") with Bitmaintech PTE, LTD ("Bitmain"), for the purchase of 5,100 additional Antminer S19 Pro digital currency miners (the "Miners")... Riot will pay Bitmain approximately $11.2 million”
How we checked this
Checked on October 11, 2026. The cited source supports every part of this claim.
The 8-K states that on August 25, 2020 Riot agreed to buy 5,100 additional S19 Pro miners from Bitmain for about $11.2 million. It also states that deliveries run in five installments, the first by February 28, 2021 and the last by June 30, 2021.
Confirmed in the source:
- On August 25, 2020, Riot Blockchain entered into a follow-on sale and purchase agreement with Bitmain (Bitmaintech PTE, LTD)
- The agreement covers 5,100 additional Antminer S19 Pro digital currency miners
- The purchase price is approximately $11.2 million, subject to adjustments, offsets and costs
- Deliveries are scheduled in installments from February 28, 2021 through June 30, 2021
What we did: Read our cached copy of SEC EDGAR (https://www.sec.gov/Archives/edgar/data/1167419/000107997320000750/riot_8k-082720.htm) in full (9,952 characters, retrieved September 13, 2026) and checked each assertion in the claim against it.
Additional evidence
confirms Riot 8-K filed 2020-08-27
Quote: “entered into an additional sale and purchase agreement (the "Follow-On Agreement") with Bitmaintech PTE, LTD ("Bitmain"), for the purchase of 5,100 additional Antminer S19 Pro digital currency miners (the "Miners")... Riot will pay Bitmain approximately $11.2 million”
confirms Riot 10-K/A filed 2022-11-23
Quote: “During 2021, we received 34,608 additional Antminer model S19-Pro miners pursuant to purchase orders with their manufacturer, Bitmain”
confirms Riot 10-Q filed 2021-08-23
Quote: “outstanding executed purchase agreements for the purchase of miners from Bitmain for a total of 15.500 miners (2,000 new S19-Pro model miners and 13,500 new S19j-Pro model miners), scheduled to be delivered through October 2021”