Contract analysis

I. Executive Summary This memorandum analyzes and summarizes the performance standards, completion criteria, and certification-of-completion process established by the consent decree (execution version dated February 19, 2025) for each of the four sites operated or formerly operated by Torchlight Mining Corp. and its affiliates. The analysis is intended to provide Torchlight Mining Corp. ("TMC" or the "Company") mana

II. Governing Legal Framework A. Statutory and Regulatory Authorities The consent decree draws its authority from, and imposes obligations arising under, multiple federal and state environmental statutes and their implementing regulations. A thorough understanding of these authorities is necessary to interpret the performance standards, completion criteria, and termination provisions of the decree, as each site's rem

III. Site-Specific Performance Standards This section examines the performance standards applicable to each of the four sites governed by the consent decree. For each site, we describe the site characteristics, identify the contaminants of concern and their applicable cleanup levels, summarize the operational performance benchmarks, reference the applicable remediation schedule, and outline the performance monitoring

1. Site Description The Ridgecrest Copper-Molybdenum Mine is located at 14200 Ridgecrest Mine Road, Drummond, Granite County, Montana 59832. The mine footprint encompasses approximately 3,200 acres, with total controlled property (including buffer zones, access corridors, and ancillary facilities) totaling approximately 8,700 acres. The site is situated in the upper Flint Creek drainage basin in western Montana, appr

2. Contaminants of Concern and Cleanup Levels The contaminants of concern at the Ridgecrest site arise primarily from acid mine drainage ("AMD") generated by the exposure of sulfide-bearing waste rock and tailings to air and water. The principal contaminants and their applicable cleanup levels are as follows: Acid Mine Drainage — Dissolved Copper. Dissolved copper is the primary contaminant of concern in AMD discharg

3. Operational Performance Benchmarks In addition to the contaminant-specific cleanup levels described above, the consent decree establishes operational performance benchmarks for the Ridgecrest site that define the functional requirements of the remedial systems. These benchmarks are expressed as engineering specifications and operational parameters, rather than as ambient environmental concentrations, and serve as

4. Remediation Schedule Reference The negotiated remediation cost for the Ridgecrest site is $198.6 million over a 30-year remediation period, with a net present value of $134.9 million at a 3% discount rate. This amount was the product of extensive negotiations between TMC and the government, with TMC's original estimate of $187.5 million and EPA's estimate of $224.0 million yielding a midpoint of $205.75 million. T

5. Performance Monitoring Requirements The consent decree and its appendices establish a comprehensive monitoring program for the Ridgecrest site, designed to measure TMC's progress toward achieving the performance standards described above and to provide the data necessary for the eventual Certification of Completion process. The monitoring program includes the following components: Monitoring Well Network — Groundw

1. Site Description The Gallatin Chemical Works is located at 8800 Industrial Park Lane, Belgrade, Gallatin County, Montana 59714. The site encompasses approximately 145 acres in the Gallatin Valley, approximately 10 miles west of Bozeman, Montana, within an established industrial park adjacent to agricultural land and residential development. The Gallatin site is operated by Torchlight Specialty Chemicals, Inc., a D

2. Contaminants of Concern and Cleanup Levels The contaminants of concern at the Gallatin site are associated with the manufacture, handling, and disposal of specialty chemical products and process residuals. The principal contaminants and their applicable cleanup levels are as follows: Carbon Disulfide (CS₂) in Groundwater. Carbon disulfide is the primary contaminant of concern in groundwater at the Gallatin site. C

3. Operational Performance Benchmarks Groundwater Treatment System. TMC must design, install, and operate a groundwater treatment system — either a conventional pump-and-treat system, an in-situ treatment system (such as enhanced bioremediation or chemical oxidation), or a combination thereof — capable of reducing CS₂ concentrations to the MCL (10 µg/L) within the corrective action boundary within 10 years of system

4. Remediation Schedule Reference The estimated remediation cost for the Gallatin site is $42.8 million over a 15-year period, with a net present value of $34.1 million at a 3% discount rate. The Gallatin site has the shortest projected remediation timeline of the four sites, reflecting the smaller geographic scale of the site and the more limited scope of the corrective action required. The principal milestone for t

5. Performance Monitoring Requirements Quarterly Groundwater Monitoring. TMC must conduct quarterly groundwater monitoring at all compliance wells within the corrective action boundary. The monitoring program includes sampling for CS₂, xanthate decomposition products, and VOCs, as well as standard field parameters (pH, temperature, specific conductance, dissolved oxygen, and oxidation-reduction potential). Continuous

1. Site Description The Bonanza Creek Gold Mine is located on County Road 447, Mile Marker 12, in Lander County, Nevada 89820, approximately 28 miles south of the town of Battle Mountain. The mine footprint encompasses approximately 5,600 acres, with total controlled property — including buffer zones, haul roads, and ancillary facilities — totaling approximately 12,400 acres. The site is situated in the Basin and Ran

2. Contaminants of Concern and Cleanup Levels Weak Acid Dissociable (WAD) Cyanide. WAD cyanide is the primary contaminant of concern associated with the heap-leach gold recovery process. Current WAD cyanide concentrations in the heap-leach pad underdrain are approximately 0.62 mg/L. The applicable discharge limit for WAD cyanide is 0.022 mg/L, based on the Nevada water quality criterion for cyanide in receiving water

3. Operational Performance Benchmarks Liner Repair and Redundant Containment. TMC must complete the repair of all identified tears and failures in the existing heap-leach pad liner system and must install a redundant containment system consisting of a double liner system with a leak detection layer between the primary and secondary liners for all active heap-leach pads. The double liner system must be designed and co

4. Remediation Schedule Reference The estimated remediation cost for the Bonanza Creek site is $63.2 million over a 20-year period, with a net present value of $47.1 million at a 3% discount rate. The 20-year timeframe reflects the ongoing nature of mining operations at the site and the extended timeline for mine closure, reclamation, and post-closure monitoring. The principal milestone for the Bonanza Creek site is

5. Performance Monitoring Requirements Continuous Leak-Detection Monitoring. TMC must install and operate continuous leak-detection monitoring systems in the leak-detection layer of the double liner system for all active heap-leach pads. Leak-detection data must be recorded continuously and reviewed at least daily by qualified personnel. Monthly WAD Cyanide and Mercury Sampling. TMC must conduct monthly sampling for

1. Site Description The Kanawha Bend Chemical Plant is located at 2200 Chemical Valley Road, Institute, Kanawha County, West Virginia 25112. The site encompasses approximately 78 acres within the Kanawha Valley industrial corridor, commonly known as "Chemical Valley," which has historically been one of the most concentrated chemical manufacturing regions in the United States. The site is situated along the Kanawha Ri

2. Contaminants of Concern and Cleanup Levels Sulfuric Acid Residuals in Soils. Soil pH values as low as 1.8 have been documented in the area of the 2020 release and in the vicinity of the former waste lagoon. The performance standard requires neutralization of acidic soils to a pH of 6.0 or greater within the corrective action boundary. This standard is consistent with EPA guidance on soil pH restoration and is desi

3. Operational Performance Benchmarks Soil Neutralization and Stabilization. TMC must complete the neutralization of all acidic soils within the corrective action boundary to achieve a minimum pH of 6.0, and must stabilize contaminated soils in the former waste lagoon area to reduce the leachability of lead and arsenic to levels that do not pose unacceptable risks to groundwater. The specific neutralization and stabi

4. Remediation Schedule Reference The estimated remediation cost for the Kanawha Bend site is $38.9 million over a 20-year period, with a net present value of $29.0 million at a 3% discount rate. The 20-year timeframe reflects the technical difficulty of DNAPL remediation in fractured bedrock and the extended monitoring period required to demonstrate achievement of MCLs in a fractured-rock aquifer system. The princip

5. Performance Monitoring Requirements Quarterly Groundwater Monitoring. TMC must conduct quarterly groundwater monitoring at all wells in the compliance monitoring network for chlorinated solvents (TCE, PCE, TCA, and their degradation products), metals (lead, arsenic, and other site-related metals), and pH. Monitoring must include both the alluvial and bedrock aquifer systems. Semi-Annual DNAPL Thickness Measurement

IV. Completion Criteria — General Framework The consent decree establishes a structured framework for determining when TMC's remedial obligations at a given site have been sufficiently discharged to permit the initiation of the termination process. This framework distinguishes between two critical milestones — "Completion of Remedial Construction" and "Completion" — each of which carries distinct legal and practical

1. Ridgecrest. Completion of Remedial Construction. All AMD treatment infrastructure, tailings impoundment cover system, groundwater containment system (extraction wells and/or permeable reactive barriers), and stormwater management system must be installed, operational, and functional. The achievement of this milestone will be documented through an as-bui