CleanSpark, Inc. (CLSK) — ESG & Values Scores

Environment story

CleanSpark operates bitcoin mining and AI/HPC data center infrastructure with significant electricity consumption (5.86 billion kWh in FY2025). The company does not disclose comprehensive Scope 1, 2, or 3 emissions data, nor a formal net-zero target year. Energy costs represent 43.9% of mining revenue (FY2025), sourced from a portfolio of power purchase agreements across Georgia, Mississippi, Tennessee, and Wyoming with majority variable-rate exposure to wholesale power markets. The 10-K acknowledges increasing ESG scrutiny and climate-change physical risks but provides no quantified renewable energy percentage, carbon reduction targets, or third-party environmental certifications. The company curtails operations opportunistically when power prices exceed bitcoin reward value, but this is a financial optimization, not a decarbonization initiative. No evidence of carbon offset purchases or greenwashing claims detected; however, the absence of disclosed emissions metrics and net-zero commitment creates a low baseline score.

Criticisms on file

No disclosed emissions inventory (Scope 1, 2, 3) and no net-zero target year despite operating 5.86 billion kWh of energy consumption in FY2025.
Source: CLSK 10-K, MD&A section; Risk Factors section acknowledges 'Increased scrutiny and changing expectations from stakeholders with respect to ESG practices' but company has not published sustainability report or emissions data.
Majority of power sourced from variable-rate wholesale markets with no disclosed renewable energy percentage or long-term decarbonization pathway.
Source: CLSK 10-K, MD&A 'Energy prices are also highly sensitive to weather events... When such events occur, we may curtail our operations to avoid using power at increased rates.' No renewable procurement commitments disclosed.
Rising absolute energy consumption and operational scale (hashrate increased 65% YoY to 45.6 EH/s, miners in service +28% to 241,934 units) with no corresponding emissions reduction target or carbon intensity metric.
Source: CLSK 10-K, MD&A Bitcoin Mining Operations table; 'We expect to continue increasing our computing power through 2025 and beyond.'

Disclosed initiatives

Energy-Efficient Mining Fleet

Average operating energy efficiency of 16.7 W/TH as of September 30, 2025, down from 21.9 W/TH in 2024, reflecting deployment of newer ASIC hardware (S21 and equivalent models).

Incremental efficiency improvement reduces energy consumption per unit of hash rate; however, absolute emissions scale with fleet expansion (241,934 miners in service, up 28% YoY).
Operational Flexibility via Power Markets

Real-time curtailment decisions based on hourly energy pricing versus bitcoin reward value; maintained >90% uptime in FY2025.

Allows dynamic response to grid stress or peak-pricing periods; cost-optimization rather than emissions-reduction mechanism.
AI/HPC Facility Development

Expansion into AI and HPC hosting markets with Texas campus acquisition (October 2025, 285 MW secured power supply). Company states intent to 'responsibly secure and support both bitcoin mining and AI and HPC workloads.'

Potential to diversify revenue and reduce per-unit carbon intensity if AI/HPC clients value low-carbon power; however, absolute energy demand and emissions will increase absent renewable procurement commitments.

Social story

CleanSpark reports payroll expenses of $104.4M (FY2025), up 41% YoY, with stock-based compensation of $45.3M (43% of payroll). CEO severance agreement (August 2025) included $20M in restricted stock units, indicating significant executive compensation volatility. The 10-K does not disclose CEO-to-median-worker pay ratio, workforce diversity percentages, or formal labor-relations posture. No documented union-suppression activities or major strikes reported. Headcount increased substantially to support geographic expansion (Georgia, Mississippi, Tennessee, Wyoming, Texas), but turnover rate and employee safety metrics are not disclosed. Supply-chain exposure includes reliance on Bitmain, MicroBT, and Canaan for miners; no formal supply-chain ethics audit or conflict-mineral policy disclosed. No evidence of forced-labor risk in disclosed operations; however, limited transparency on labor practices and diversity.

Criticisms on file

No disclosed CEO-to-median-worker pay ratio; CEO severance agreement in August 2025 granted $20M in restricted stock units concurrent with departure, creating optics of executive-favorable exit compensation amid operational scaling.
Source: CLSK 10-K, MD&A: 'During August 2025, the Company entered into a severance agreement with its Chief Executive Officer...stock-based compensation in connection with this severance agreement represents $20,003 [thousand].' CEO resignation noted: 'Zachary K. Bradford resigned as President and Chief Executive Officer of the Company and as a director of the Company.'
No disclosed workforce diversity metrics (women, underrepresented groups) or formal diversity and inclusion program.
Source: CLSK 10-K contains no DEI disclosures, EEO-1 data, or diversity targets in any section.
Supply-chain dependency on three primary mining hardware vendors (Bitmain, MicroBT, Canaan) without disclosed audits for labor or environmental standards; geopolitical tariff and supply-chain disruption risks acknowledged but no mitigation framework disclosed.
Source: CLSK 10-K Risk Factors: 'We depend on Bitmain, MicroBT, Canaan Crypt Solutions and Sunnyside Digital for our miners...Supply chain disruptions resulting from factors such as tariffs, inflation, labor supply and shipping container shortages have impacted, and may continue to impact, us.'
No disclosed turnover rate, employee safety metrics, or plant safety incidents.
Source: CLSK 10-K does not disclose turnover or occupational safety data.

Disclosed initiatives

Workforce Expansion and Incentives

Payroll expenses increased 41% to $104.4M in FY2025; company granted 2,212,486 restricted stock units to employees in April 2025 'in recognition of their collective contributions and dedication to helping the Company achieve key operational milestones.'

Signals commitment to broad-based equity participation; however, CEO severance grant ($20M RSU) and broad equity issuance increase dilution risk and may not reflect sustainable compensation model.
Geographic Expansion and Local Employment

Operations across Georgia, Mississippi, Tennessee, Wyoming, and Texas with stated intent to hire locally for facility operations and management.

Geographic diversification of operations may create employment opportunities in rural/underserved regions; no quantified local hiring commitment disclosed.
Stated Community Engagement

MD&A states: 'We cultivate trust and transparency among our employees and the communities where we operate.'

No specific community programs, labor agreements, or DEI initiatives disclosed; statement is aspirational rather than evidenced.

Governance story

CleanSpark is incorporated in Nevada with a single class of common stock (no disclosed dual-class or founder supermajority structure). Board independence percentage is not disclosed in the 10-K; four executive officers listed (CEO, President/CFO, Chief Development Officer, COO/CTO), but board composition and committee structure are not detailed in the provided filing. The company discloses lobbying exposure via Risk Factors section, which identifies regulatory uncertainty around bitcoin mining, AI/HPC hosting, and environmental regulation as material risks, but does not report annual lobbying spend in dollars or disclose participation in trade associations misaligned with climate policy. No significant antitrust, consumer-fraud, or securities enforcement proceedings are described; however, the company notes it is 'currently the subject of a shareholder class action' and may face future litigation. CEO departure (August 2025) raises governance continuity questions. Convertible debt structure ($636M outstanding as of Sept 30, 2025; $1.15B issued in November 2025) introduces complexity in capital structure and shareholder dilution risk.

Criticisms on file

Shareholder class action litigation ongoing; company states 'we are currently the subject of a shareholder class action, and may be subject to shareholder litigation in the future.'
Source: CLSK 10-K Risk Factors: 'we are currently the subject of a shareholder class action, and may be subject to shareholder litigation in the future; our costs of defending such litigation, arbitration and other proceedings and any adverse outcome of such litigation, arbitration or other proceeding may have a material adverse effect on our business and the results of our operations.'
CEO departure August 2025 (Zachary K. Bradford) with significant severance ($20M RSU + cash); governance transition risk and lack of disclosed succession plan.
Source: CLSK 10-K: 'On August 10, 2025, Zachary K. Bradford resigned as President and Chief Executive Officer of the Company and as a director of the Company. Mr. Bradford's departure from the Company could have an adverse impact on our business, operating results and financial condition going forward.'
No disclosed board independence percentage, committee composition, or governance charters; four executive officers identified but board structure and oversight mechanisms not detailed.
Source: CLSK 10-K does not provide board committee structure or independence metrics in the provided excerpt.
Regulatory uncertainty and lobbying exposure: Risk Factors enumerate potential adverse impacts from changes to bitcoin mining regulation, environmental regulation, AI/HPC hosting regulation, and energy policy, but no disclosure of annual lobbying spend or trade association participation.
Source: CLSK 10-K Risk Factors: 'potential changes in laws and regulations applicable to mining bitcoin...changing environmental regulation and public energy policy...regulatory developments surrounding AI and HPC may negatively impact our efforts to expand into AI and HPC hosting.' No corresponding lobbying spend disclosure.
Reliance on third-party custodian (Coinbase) for all bitcoin holdings (~$1.19B fair value as of Sept 30, 2025) with acknowledged bankruptcy risk: 'In the event of a bankruptcy filing by a custodian, bitcoin held in custody could be determined to be property of a bankruptcy estate and we could be considered a general unsecured creditor.'
Source: CLSK 10-K Risk Factors: 'Potential that, in the event of a bankruptcy filing by a custodian, bitcoin held in custody could be determined to be property of a bankruptcy estate and we could be considered a general unsecured creditor thereof.'

Disclosed initiatives

Convertible Debt Capital Structure

Issued 0.00% Convertible Senior Notes due 2032 ($1.15B principal) in November 2025 and currently holds $636M in convertible notes (0.25% due 2030). Stated use of proceeds: 'expansion of power and land portfolio, data-center infrastructure development, repayment of bitcoin-backed credit balances, and general corporate purposes.'

Aligns long-term debt financing with growth strategy; 0% coupon rate reduces near-term cash burden but introduces significant dilution risk upon conversion and equity volatility.
At-the-Market (ATM) Equity Offering Program

Company utilizes ATM program for opportunistic equity financing to fund strategic growth and working capital needs.

Provides flexible liquidity access but creates persistent shareholder dilution and introduces stock-price-dependent funding risk.
Bitcoin-Backed Credit Lines

Company maintains $174.5M drawn balance on Coinbase Line of Credit and undrawn Two Prime credit facility, with ~$294.6M bitcoin posted as collateral. Treasury management function launched April 2025 to optimize bitcoin sales vs. holdings.

Leverages digital asset holdings for operational liquidity; however, creates counterparty risk (Coinbase insolvency, bitcoin price volatility impact on collateral sufficiency) and rehypothecation exposure.

These are Missionomics' own editorial scores — directional signals built from disclosed facts under a published method, not certifications or definitive ratings of CleanSpark, Inc.. Coverage and confidence vary by data point, and figures can lag real-world changes. Read the full Methodology for sourcing, scoring, and correction details — or open CleanSpark, Inc. in the app for interactive charts and portfolio building.

More in Financial Services

Berkshire Hathaway Inc. (BRK-B) JPMorgan Chase & Co. (JPM) Visa Inc. (V) Mastercard Incorporated (MA) Bank of America Corporation (BAC) Morgan Stanley (MS)