---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-24-043878"
form_type: "8-K"
ticker: "CLSK"
cik: "0000827876"
company_name: "CLEANSPARK, INC."
filed_at: "2024-04-12T23:59:59+00:00"
generated_at: "2026-06-03T23:44:42.823008+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# CleanSpark exercises option for 100K S21 Pro miners at $374.4M, boosting hashrate by 17% to 23.4 EH/s

## Summary
- Supplemental Agreement with Bitmain upgrades option from S21 to S21 Pro; total purchase price $374.4M for 100,000 units.
- S21 Pro offers 234 TH/s, 15 J/TH efficiency (14% improvement over S21); cost per terahash remains $16.
- Delivery scheduled from June to December 2024; adds 23.4 EH/s to fleet.
- CleanSpark reports operating hashrate exceeded 17 EH/s as Dalton, GA data center goes online.
- CEO cites efficiency advantage ahead of halving, expects increased market share as older miners go offline.

## SEC filing metadata
- accession: 0000950170-24-043878
- form_type: 8-K
- ticker: CLSK
- cik: 0000827876
- company_name: CLEANSPARK, INC.
- filed_at: 2024-04-12T23:59:59+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 1.01, 7.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/827876/000095017024043878/0000950170-24-043878-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/827876/000095017024043878/clsk-20240411.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-24-043878
- JSON: https://secwatch.observer/filing/0000950170-24-043878.json
- Plain text: https://secwatch.observer/filing/0000950170-24-043878.txt

## Key facts
- Material Agreements
  CLEANSPARK, INC. entered into Supplemental Agreement with Bitmain Technologies Delaware Limited valued at $374,400,000 (effective 2024-04-11).
  - Action: entry
  - Agreement: supply
  - Counterparty: Bitmain Technologies Delaware Limited
  - Value: $374,400,000
  - Effective: 2024-04-11
  source text: On April 11, 2024, CleanSpark, Inc., a Nevada corporation (the "Company"), entered into a Supplemental Agreement (the "Supplemental Agreement") with Bitmain Technologies Delaware Limited ("Bitmain"), amending certain terms of the Future Sales and Purchase Agreement dated January 6, 2024 (the "Original Agreement").
  evidence_url: https://www.sec.gov/Archives/edgar/data/827876/000095017024043878/0000950170-24-043878-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.