Contract analysis

I. EXECUTIVE SUMMARY This memorandum presents the results of a comprehensive comparative analysis of precedent consent decrees entered in federal enforcement actions brought by the United States Environmental Protection Agency ("EPA") and the Department of Justice, Environment and Natural Resources Division ("DOJ-ENRD"), against mining companies, metals processors, and specialty chemical manufacturers. The purpose of

II. SCOPE AND METHODOLOGY A. Selection Criteria for Precedent Decrees The research team applied the following selection criteria to identify relevant precedent consent decrees for comparative analysis:

1. Temporal scope. Only consent decrees entered in United States federal district courts between January 1, 2012, and October 31, 2024, were considered. This thirteen-year window was selected to capture the current enforcement policy environment while providing a sufficiently broad data set. Decrees entered before 2012 were excluded as less representative of contemporary EPA negotiation practices and penalty guidelin

2. Plaintiff party requirements. The United States, acting through EPA and/or DOJ-ENRD, must appear as plaintiff or co-plaintiff. Decrees involving only state enforcement agencies without federal participation were excluded, as they operate under different statutory frameworks and penalty calculation methodologies.

3. Defendant party requirements. The defendant or settling party must be a mining company (including open-pit, underground, and heap-leach operations), a metals processor, or a specialty chemical manufacturer. Decrees involving oil and gas operations, coal-fired power plants, municipal wastewater treatment facilities, and agricultural operations were excluded as insufficiently analogous to TMC's operations.

4. Statutory basis. The decree must involve enforcement under at least one of the following statutory provisions: (a) CWA § 301 (effluent limitations and standards); (b) RCRA §§ 3004 and/or 3005 (standards for hazardous waste treatment, storage, and disposal facilities; permits for such facilities); or (c) CERCLA § 107 (liability for response costs and natural resource damages). These are the same statutory provision

5. Multi-site weighting. Decrees involving multiple sites were given special weight in the selection process, as they represent closer analogs to TMC's four-site matter and present similar issues of site-by-site milestone management, financial assurance allocation, and termination sequencing.

6. Source materials. All decrees reviewed were publicly available through the EPA Office of Enforcement and Compliance Assurance enforcement case database, the Public Access to Court Electronic Records ("PACER") system, and, in certain instances, the relevant U.S. Attorney's Office press release archives. Supporting docket materials, including proposed decrees, public comments, and government response briefs, were al

III. CIVIL PENALTY ANALYSIS A. Overview of TMC's Proposed/Negotiated Penalty The TMC Consent Decree as currently drafted provides for a total civil penalty of $31.5 million assessed across the four subject sites. The proposed allocation of the total penalty among the sites, which reflects the relative severity and duration of violations at each location, is as follows: The Ridgecrest allocation represents the largest

1. TMC's total penalty of $31.5 million is defensible and within precedent norms for a company of TMC's size, revenue, and EBITDA, given the nature and severity of the violations at the four sites. The proposed penalty falls within the established precedent range on both the penalty-to-revenue and penalty-to-EBITDA metrics.

2. A modest reduction in the total penalty is supportable if TMC elects to pursue it, potentially to the range of $28.0 million to $29.0 million. The strongest arguments for reduction are: (a) TMC's cooperative posture throughout the investigation and negotiation, including self-reporting of certain violations; (b) TMC's early implementation of interim remedial measures at Ridgecrest and Bonanza Creek prior to the fi

3. The interest-free 36-month installment payment schedule should be preserved. This is a tangible financial benefit relative to the majority of precedent decrees that required interest on deferred amounts, and TMC should be prepared to make concessions in other, less financially significant areas to protect this provision if necessary.

4. We note that penalty reduction is classified as Priority 6 in our overall negotiation priority ranking (see Section XIV below). While supportable, the case for penalty reduction is weaker than the cases for improvement in other decree components (particularly stipulated penalties, financial assurance drawdown, and force majeure expansion), and we recommend that TMC's limited negotiation capital be deployed on thos

IV. REMEDIATION COST AND SCHEDULING ANALYSIS A. TMC's Remediation Cost Profile The TMC Consent Decree establishes remediation obligations across all four subject sites with a total negotiated remediation cost (nominal dollars) of $343.5 million. The site-by-site allocation of this total, along with net present value calculations at a 3% discount rate, is as follows: The Ridgecrest Mine remediation represents the larg

1. Administrative modification of interim milestones (majority approach). Six of the eight (6/8) comparator decrees include provisions allowing the modification of interim (non-final) milestones upon a showing of good cause, typically through an administrative process involving written request to EPA, EPA response within a defined period (usually 30 to 60 days), and, if approved, amendment of the applicable site-spec

2. Full decree modification for any schedule change (minority approach). Two of the eight (2/8) decrees require formal decree modification, including court approval pursuant to Federal Rule of Civil Procedure 60(b), for any change to any milestone — including interim milestones. This approach is significantly more burdensome, time-consuming, and costly, and can result in stipulated penalty exposure during the period

V. SUPPLEMENTAL ENVIRONMENTAL PROJECTS (SEPs) ANALYSIS A. TMC's Proposed SEPs The TMC Consent Decree includes a commitment by TMC to fund and implement three supplemental environmental projects with a total value of $12.0 million. The three SEPs, as described in Section IX and Appendix D of the proposed decree, are:

1. Flint Creek Watershed Restoration Project ($5.5 million). This SEP involves the restoration of approximately 14 miles of riparian habitat and stream channel along Flint Creek in Deer Lodge County, Montana, downstream of the Ridgecrest Mine. Project elements include streambank stabilization, native vegetation planting, fish passage barrier removal, and installation of sediment control structures. The project will b

2. Battle Mountain Community Drinking Water Improvement Project ($3.5 million). This SEP provides funding for the upgrade and expansion of the municipal drinking water treatment system serving the community of Battle Mountain, Lander County, Nevada, the nearest populated community to the Bonanza Creek Mine. Project elements include installation of a new granular activated carbon treatment system, replacement of aging

3. Institute Community Air Quality Monitoring Network ($3.0 million). This SEP establishes a network of continuous ambient air quality monitoring stations in the community of Institute, Kanawha County, West Virginia, adjacent to the Kanawha Bend Chemical Plant. The network will consist of six monitoring stations measuring VOCs, particulate matter (PM2.5 and PM10), and criteria pollutants, with real-time data publicly

1. Watershed restoration. The most common SEP category in mining decrees, appearing in six of the eight comparators. These projects typically involve stream restoration, riparian habitat enhancement, fish habitat improvement, and sediment control in watersheds affected by the defendant's mining operations.

2. Community health and drinking water improvement. Appearing in four of the eight comparators. These projects fund improvements to community drinking water infrastructure, community health screenings, and biomonitoring studies in communities near the defendant's facilities.

3. Air quality monitoring. Appearing in three of the eight comparators, primarily in decrees involving chemical manufacturing or smelting operations with air emissions concerns. These projects typically involve the installation and operation of ambient air monitoring networks in affected communities.

4. Environmental education. Appearing in two of the eight comparators. These projects fund environmental education programs, scholarships, and curriculum development at schools and community colleges in affected communities.

5. Land conservation. Appearing in two of the eight comparators. These projects fund the acquisition and permanent conservation of ecologically significant land parcels in the vicinity of the defendant's operations, typically through donation to land trusts or government agencies. TMC's three proposed SEPs cover three of the five common categories (watershed restoration, community drinking water, and air quality moni

1. Resist any push to increase total SEPs beyond $12.0 million unless such an increase is offset by a corresponding reduction in the civil penalty. SEP commitments are, by their nature, an alternative form of penalty mitigation, and any increase in SEP value without a corresponding penalty reduction represents a net increase in TMC's total financial exposure.

2. If forced to increase SEP value, we recommend adding a modest environmental education SEP in the vicinity of the Gallatin Chemical Works site, in the range of $0.5 million to $1.0 million. Such a project could take the form of a partnership with Montana State University (located in Bozeman, approximately 8 miles from the Gallatin site) to fund environmental science curriculum development, student scholarships, or

3. Preserve the current SEP implementation timelines and reporting requirements. The current draft requires semi-annual progress reports and annual financial reporting for each SEP, which is consistent with the reporting requirements in the majority of precedent decrees. More frequent reporting would impose unnecessary administrative burden without proportionate benefit to EPA or the affected communities.

VI. STIPULATED PENALTY RATE ANALYSIS A. TMC Consent Decree Stipulated Penalty Rates The TMC Consent Decree, as currently drafted, employs a three-tier escalating stipulated penalty structure for violations of the decree's requirements. The rates are as follows: • Tier 1 (Days 1–30): $1,500 per day per violation • Tier 2 (Days 31–60): $3,000 per day per violation • Tier 3 (Day 61 and thereafter): $5,500 per day per vi

1. Aggregate annual caps. Five of the eight (5/8) precedent decrees include provisions capping the aggregate amount of stipulated penalties that may accrue in any single calendar year, regardless of the number or duration of individual violations. The caps in these five decrees range from $500,000 to $5,000,000 per year, with a median of approximately $2.0 million per year. In the three multi-site decrees that includ

2. Cure periods. Four of the eight (4/8) precedent decrees include cure-period provisions that allow the settling defendant a defined period — typically 15 to 30 days — to cure minor violations before stipulated penalties begin to accrue. These cure periods are typically limited to reporting violations, minor operational exceedances, and administrative noncompliance, and do not apply to major milestone defaults or vi

3. Good-faith effort safe harbors. Three of the eight (3/8) precedent decrees include safe-harbor provisions excusing stipulated penalties where the settling defendant demonstrates that it exercised diligent, good-faith efforts to comply with the applicable requirement and that the noncompliance was attributable to factors beyond the defendant's reasonable control (but not rising to the level of force majeure). These

1. Seek rate reductions across all three tiers. TMC should propose the following rates, which remain within the precedent range while reducing TMC's exposure to the precedent median or below: • Tier 1 (Days 1–30): $1,000/day per violation (median rate) • Tier 2 (Days 31–60): $2,000/day per violation (below median) • Tier 3 (Day 61+): $4,500/day per violation (below median) These proposed rates are defensible as consi

2. Insist on a 15-day cure period for non-reporting violations and minor operational exceedances. This is consistent with the lower end of the cure-period range in the precedent decrees that include this feature and represents a minimal concession from the government's perspective while providing meaningful protection to TMC against penalty exposure for promptly cured, inadvertent noncompliance.

3. Propose an annual aggregate stipulated penalty cap of $2.5 million per site, for a total maximum aggregate exposure of $10.0 million per year across all four sites. This cap is at the median of the capped precedent decrees and provides EPA with substantial deterrent effect while limiting TMC's exposure to financially material accumulation of penalties during extended compliance disputes.

4. Include a good-faith effort defense for milestone delays attributable to third-party causes, regulatory permitting delays, or other factors beyond TMC's reasonable control. This defense should be structured as an affirmative defense requiring TMC to demonstrate: (a) that it exercised diligent, good-faith efforts to comply; (b) that the noncompliance was attributable to factors beyond TMC's reasonable control; and

VII. FINANCIAL ASSURANCE ANALYSIS A. TMC's Proposed Financial Assurance Structure The TMC Consent Decree requires the establishment of financial assurance in the total amount of $245.0 million, to be provided through a combination of two instruments:

1. Surety bond in the amount of $165.0 million, to be issued by Ironbark Surety of America under Bond No. ISA-ENV-2025-08934. The annual premium on this bond, based on Ironbark's quoted rate, is 1.85% of face value, resulting in an annual premium expense of approximately $3,052,500 ($3.0525 million per year). Over the anticipated 30-year life of the decree, and assuming no reduction in the bond amount, the cumulative

2. Remediation trust fund in the initial amount of $80.0 million, to be established at Larchfield Trust Company under Trust Agreement No. LTC-REM-2025-1177. The trust fund will be invested in accordance with a conservative investment policy approved by EPA, with investment returns accruing to the trust and available for remediation expenditures. The trust agreement provides that TMC will make the initial deposit of $

1. CPI indexing. Three of the seven decrees with adjustment provisions use Consumer Price Index ("CPI") or Producer Price Index ("PPI") escalation factors to automatically adjust the financial assurance amount upward on an annual basis, regardless of actual changes in estimated remediation costs.

2. Actual cost reconciliation. Four of the seven decrees with adjustment provisions require periodic reconciliation of the financial assurance amount against updated remediation cost estimates, with adjustments (upward or downward) based on actual cost experience and revised projections. Critically, six of the eight (6/8) precedent decrees include drawdown provisions that allow the settling defendant to reduce the fi

1. TMC's combined surety/trust structure is standard and appropriate and should be preserved. No changes to the basic structure are recommended.

2. Negotiate for drawdown provisions allowing reduction in the surety bond amount as specific remediation milestones are completed and verified. A reasonable drawdown schedule might provide for reductions of 15–25% of the bond amount upon completion of each major milestone (e.g., completion of remedy construction at Gallatin, completion of interim stabilization at Kanawha Bend, completion of liner repair at Bonanza C

3. Ensure annual cost reconciliation rather than one-directional inflation adjustment. The cost reconciliation provision should allow for both upward and downward adjustments to the financial assurance amount based on updated cost estimates, so that TMC receives credit for actual cost savings achieved through efficient remediation implementation.

4. Consider whether a partial corporate guarantee from TMC's parent corporation could substitute for a portion of the surety bond, reducing the bond face value and premium cost. This option should be explored carefully and only if EPA signals receptivity, given the government's historical reluctance to accept corporate guarantees in enforcement contexts.

VIII. INDEPENDENT MONITORING ANALYSIS A. TMC's Proposed Monitor Arrangement The TMC Consent Decree provides for the appointment of a court-appointed independent environmental monitor to oversee TMC's compliance with the decree's requirements. The proposed monitor is Verdant Analytics, Inc., a Portland, Oregon-based environmental consulting firm specializing in mining and industrial site remediation oversight. The eng