Rare Element Resources (REEMF) Risk Factors

We currently do and likely will depend on various supplies and equipment to carry out our activities, including those for the Demonstration Plant, and, if warranted, future exploration, development, mining, and processing operations. A shortage of such supplies, equipment or parts could have a material adverse effect on our ability to carry out our planned activities or increase our operating costs and expenses.

We estimated the initial capital costs required to bring the Bear Lodge REE Project into commercial production in our historical PFS, dated October 9, 2014, at approximately $290,000. We did not evaluate the capital cost estimates in our TRS for the Bear Lodge REE Project. Our FS, if and when completed, could suggest that our estimated costs may be materially higher than those we previously anticipated, which could make it more difficult to finance the Bear Lodge REE Project or to successfully establish mining operations. We anticipate that our future operating costs at the Bear Lodge REE Project will vary from year to year due to a number of factors, such as changing grade, metallurgy, and revisions to mine plans in response to the physical shape and location of the ore body. In addition, costs are affected by the price of commodities such as oil, gas, reagents/chemicals, steel, rubber, and electricity. Such commodities are at times subject to volatile price movements, including increases that could make production less profitable or not profitable at all. A material increase in costs could also impact our ability to commence or maintain future development of mining operations.

Our current and future activities will be governed by laws and regulations, including the following, among others: - laws and regulations governing mineral concession acquisition, prospecting, development, mining, processing, production, and decommissioning;- laws and regulations related to exports, taxes, and fees;- labor standards and regulations related to occupational health and mine safety;- laws and regulations relating to environmental protections concerning, among other things, waste management, transportation, and disposal of toxic and radioactive substances, land use, water, air, and the protection of threatened and endangered species. We believe that we hold, or are in the process of obtaining, all licenses and permits necessary to carry on the activities that we currently are conducting or propose to conduct in the near term under applicable laws and regulations. Such licenses and permits are subject to changes in regulations and changes in various operating circumstances. There can be no guarantee that we will be able to obtain all necessary licenses and permits that may be required to maintain the current or planned exploration, development and mining activities, including constructing mines and/or processing and/or beneficiation facilities, and commencing operations at the Bear Lodge REE Project. In addition, if we proceed to production on the Bear Lodge REE Project, we will be required to obtain and comply with permits and licenses that may contain specific operating or other conditions. There can be no assurance that we will be able to obtain such permits and licenses or that we will be able to comply with any such conditions. Our Sundance Gold Project, previously in the exploration stage, but on hold since 2014, does not have any of the permits or licenses that would be necessary to carry on further activities on the project. Costs related to applying for and obtaining permits and licenses may be prohibitive and could delay planned exploration and development activities. Failure to comply with applicable laws, regulations and permitting and licensing requirements may result in enforcement actions, including orders issued by regulatory or judicial authorities causing operations to cease or be curtailed, and may include corrective measures requiring capital expenditures, installation of additional equipment or remedial actions. Parties engaged in mining operations may be required to compensate those suffering loss or damage relating to mining activities and may be subject to civil or criminal liability, fines or penalties imposed for violations of applicable laws or regulations. Amendments to current laws, regulations and permits governing operations and activities of mining companies, or more stringent implementation thereof, could have a material adverse impact on our operations, cause increases in capital expenditures or production costs, or require abandonment or delays in the exploration or the development of either of our Projects.

There are risks that title to our Bear Lodge Property may be challenged or impugned. Our Bear Lodge Property is located in the state of Wyoming and may be subject to prior unrecorded agreements, transfers or native land claims, and title may be affected by undetected defects. There may be valid challenges to the title of our Bear Lodge Property which, if successful, could impair or result in the cessation of development and/or operations. The vast majority of the mineral rights to our Bear Lodge Property consist of "unpatented" mining claims created and maintained in accordance with the U.S. General Mining Act of 1872 ("U.S. General Mining Law"). Unpatented mining claims are unique property interests and are generally considered to be subject to greater title risk than are other real property interests because the validity of unpatented mining claims can be uncertain. This uncertainty arises, in part, out of the complex federal and state laws and regulations an owner of an unpatented mining claim must comply with to locate and maintain a valid claim. Also, unpatented mining claims are always subject to possible challenges by third parties or validity contests by the federal government. The validity of an unpatented mining claim, in terms of both its location and its maintenance, is dependent on strict compliance with not only a complex body of U.S. federal and state statutory law, but also administrative and judicial decisions interpreting those statutes and case law. In addition, there may be limitations as to the completeness of public records that determine prior claimants that could impact the validity or ownership of unpatented mining claims. The Company's right to continue activities on the Bear Lodge Property is dependent upon our ability to pay annual claim maintenance fees.

Our business is subject to environmental regulation in the jurisdictions in which we operate. Environmental laws and regulations at the local, state, and federal level could evolve in a manner that may impose stricter standards and enforcement, increased fines and penalties for non-compliance, more stringent environmental assessments of proposed projects, and a heightened degree of responsibility for companies and their officers, directors, and employees. These laws address, among other issues, emissions into the air, discharges into water, management of waste and hazardous substances, protection of natural resources, antiquities, endangered species, and reclamation of lands disturbed by mining operations. Compliance with environmental laws and regulations at the local, state, and federal level and future changes in these laws and regulations may require significant capital outlays and may cause material changes or delays in our current and planned operations and future activities. It is possible that future changes in these laws or regulations could have a significant adverse impact on our Projects or some portion of our business, causing us to reevaluate those activities at that time. Examples of some of the current U.S. federal laws that may affect our business and planned operations include, but are not limited to, the following: - NEPA requires federal agencies to integrate environmental considerations into their decision-making processes by evaluating the environmental impacts of proposed actions, including issuance of permits to mining facilities, and assessing alternatives to those actions. Under NEPA, a federal agency must prepare an EIS detailing the environmental impacts of "major federal actions significantly affecting the quality of the human environment."  The EPA will, and other federal agencies and any interested third parties can, review and comment on the scope of an EIS and the adequacy of and findings set forth in a draft and final EIS. - We began, in 2012, to undertake the NEPA process for the Bear Lodge REE Project. However, in 2016, we placed the Bear Lodge REE Project under care-and-maintenance, and all permitting and licensing activities were suspended, including the EIS process. The NEPA process can cause delays in issuance of required permits or result in changes to a project to mitigate potential environmental impacts, which in turn can impact the economic feasibility of a proposed project, including the ability to construct or operate the Bear Lodge REE Project or other projects entirely. - The NRC, pursuant to its authority under the Atomic Energy Act of 1954, as amended (the "Atomic Energy Act"), oversees the regulatory framework governing the control of radioactive materials, including processing and/or beneficiation of REE that contain radioactive source materials such as uranium and thorium. The NRC is responsible for issuing licenses for source material involving concentrations of uranium or thorium that exceed 0.05% by weight. If a proposed action, including waste generation, results in materials with concentrations of uranium and thorium that equal or exceed 0.05% by weight, a license to receive title to, possess, use, transfer, or deliver source and byproduct materials may be required. As our operations are expected to exceed this concentration, we are required to follow the regulations pertaining to a license application for the Demonstration Plant project and the Bear Lodge REE Project. The Demonstration Plant project received the necessary NRC license in the third quarter of 2023. The licensing process, including NEPA review relating to the NRC licensing, when initiated for the Bear Lodge REE Project may cause delays or result in changes to the Bear Lodge REE Project design to mitigate impacts as required under the license. - Under the Comprehensive Environmental Response, Compensation, and Liability Act, as amended ("CERCLA") and similar state laws, responsibility for the entire cost of cleanup of a contaminated site, as well as natural resource damages, can be imposed upon current or former site owners or operators, or upon any party who released one or more designated "hazardous substances" at the site, regardless of the lawfulness of the original activities that led to the contamination or whether the owner or operator caused or knew of the release. CERCLA also authorizes the EPA and, in some cases, third parties to take actions in response to threats to public health or the environment and to seek to recover from the potentially responsible parties the costs of such actions. We may also be an owner or operator of facilities at which hazardous substances have been released by previous owners or operators. We may be responsible under CERCLA for all or part of the costs of cleaning up facilities at which such substances have been released and for natural resource damages. We have not, to our knowledge, been identified as a potentially responsible party under CERCLA, nor are we aware of any prior owners or operators of our properties that have been so identified with respect to their ownership or operation of those properties. - The Resource Conservation and Recovery Act, as amended ("RCRA"), and comparable state statutes, regulate the generation, transportation, treatment, storage, and disposal of "solid" and "hazardous" waste and authorize the imposition of substantial fines and penalties for noncompliance, as well as requirements for corrective actions. Although certain mining, mineral processing and/or beneficiation wastes currently are exempt from regulation as hazardous wastes under RCRA, the EPA has limited the disposal options for certain wastes designated as hazardous wastes under RCRA. It is possible that certain wastes generated by our potential future operations that currently are exempt from regulation may in the future be designated as hazardous wastes and may therefore become subject to more rigorous and costly management, disposal, and clean-up requirements. - The Clean Air Act, as amended ("CAA"), and comparable state statutes, restricts the emission of air pollutants from many stationary and mobile sources, including mining, processing and/or beneficiation activities. Our planned mining operations may produce air emissions, including fugitive dust and other air pollutants, from stationary equipment, storage facilities, and the use of mobile sources such as trucks and heavy construction equipment that are subject to review, monitoring, control requirements and emission limits under the CAA and state air quality laws. New facilities may be required to obtain permits before work can begin, and existing facilities may be required to incur capital costs to remain in compliance. In addition, permitting and licensing rules and issued permits may impose limitations on production levels or result in additional capital expenditures to comply with such rules or permits. In certain circumstances, private citizens may also sue sources of pollutants for alleged violations of the CAA. - The Clean Water Act, as amended ("CWA"), and comparable state statutes impose restrictions and controls on the discharge of pollutants into waters of the U.S. The discharge of pollutants into regulated waters is prohibited, except in accordance with the terms of a permit issued by the EPA or an analogous state agency. These controls generally have become more stringent over time, and it is possible that additional restrictions will be imposed in the future. Violation of the CWA and similar state regulatory programs can result in civil, criminal, and administrative penalties for unauthorized discharges of hazardous substances and other pollutants. They also can impose substantial liability for the costs of removal or remediation associated with such discharges. The CWA also requires a discharge permit for certain activities and requires the implementation of a Pollution Prevention Plan establishing best management practices, training, periodic monitoring of covered activities, and monitoring and sampling of stormwater run-off. The CWA and regulations implemented thereunder also prohibit discharges of dredged and fill material in wetlands and other waters of the U.S. unless authorized by a permit issued by the U.S. Army Corps of Engineers. - The Safe Drinking Water Act, as amended ("SDWA"), and the Underground Injection Control ("UIC") program promulgated thereunder regulate the drilling and operation of subsurface injection wells. The program requires that a permit be obtained before drilling a disposal well. The EPA directly administers the UIC program in some states, and in others the responsibility for certain aspects of the program has been delegated to the state. Violation of these regulations and/or contamination of groundwater by mining related activities may result in fines, penalties, and/or remediation costs, among other sanctions and liabilities under the SDWA and state laws. - The Endangered Species Act ("ESA") regulates activities that could have an adverse effect on threatened and endangered species, including the habitat and ecosystems upon which they depend. The ESA protects threatened and endangered species primarily by prohibiting the unauthorized "taking" of listed species, which includes harassing or harming members of such species or significantly modifying their habitat. The ESA also requires consultation with other agencies in certain circumstances. Compliance with ESA requirements can significantly delay, limit, or even prevent the development of projects, including the development of mining claims, and can also result in increased development costs. In addition, the ESA authorized both civil and criminal penalties for ESA violations and authorizes citizen suits against any person alleged to be in violation of the ESA.

The mining industry is intensely competitive, and we must compete with other individuals and companies, many of which have greater financial resources, operational experience, and technical capabilities than we have. This competition from other mining companies could adversely impact our efforts to hire experienced mining professionals. Competition for resources at all levels can be very intense, particularly affecting the availability of manpower, drill rigs, mining equipment and production equipment. Increased competition could adversely affect our ability to attract necessary capital funding or attract or retain key personnel or outside technical resources.