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Item 1A. Risk Factors

2024-03-12 compared with 2023-03-08 · 132 added, 157 removed, 212 unchanged (58% of the section changed)

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This list of risks is not intended to be exhaustive, but reflects what we believe are the material risks inherent in our business and the ownership of our securities as of the specified dates.

A statement to the effect that the occurrence of a specified event may have a negative impact on our business, results of operations, profitability, financial condition, or the like, is intended to reflect the fact that such an event, if it occurs, would be likely to have a negative impact on your investment in ADES, but should not imply the likelihood of the occurrence of such specified event.

A statement to the effect that the occurrence of a specified event may have a negative impact on our business, results of operations, profitability, financial condition, or the like, is intended to reflect the fact that such an event, if it occurs, would be likely to have a negative impact on your investment in Arq, but should not imply the likelihood of the occurrence of such specified event.

The order in which the following risk factors are presented is not intended as an indication of the relative seriousness of any given risk.

Risks Related to Our Business

We are solely dependent on earnings from our consumables products to fund our operations and need to substantially grow earnings from the APT business.

Future distributions from Tinuum Group and Tinuum Services will be insignificant.

The Section 45 tax credit period expired on December 31, 2021.

As a result, both Tinuum Group and Tinuum Services have substantially ceased operations and we received distributions from each through December 2022.

We expect to receive limited distributions from each in 2023.

From an earnings standpoint, our business must grow substantially, either organically or through acquisition.

There can be no assurance that we will be able to increase our earnings in 2023 and beyond to cover our current operating expenses or to provide a return to shareholders that is comparable to the return that we previously provided while Tinuum Group and Tinuum Services were operating.

We do not expect our overall selling, general and administrative portions of our operating expenses to materially decrease in 2023.

If we are not able to cover operating expenses, we could be forced to raise additional capital, significantly reduce our operating expenses or take other alternative actions.

We may be unable to meet our projected construction timelines, costs and production ramp up for our capital upgrades at our Red River Plant, or we may experience difficulties in generating and maintaining demand for products manufactured there.

Our ability to increase production of GAC on a sustained basis is dependent on the construction and ramp of upgrades at our Red River Plant.

The construction of and commencement and ramp of production at this facility are subject to a number of uncertainties inherent in all new manufacturing operations.

These include ongoing liquidity requirements for funding the expansion of the facility, ongoing compliance with regulatory requirements, procurement and maintenance of construction materials and services, environmental and operational licenses and approvals for additional expansion, supply chain constraints, hiring, training and retention of qualified employees and the pace of bringing production equipment and processes online with the capability to manufacture high-quality GAC products at scale.

If we experience any issues or delays in meeting our projected timelines, costs, or production capacity for the upgrades at the Red River Plant, or generating and maintaining demand for the products we manufacture there, our business, prospects, operating results and financial condition may be harmed.

The Company anticipates financing the timely completion of the upgrades to our Red River Plant funded with cash on hand, cash generation, ongoing cost reduction initiatives, potential customer prepayments for GAC contracts, and a planned refinancing and potential expansion of our term loan.

If we are not able to secure additional financing, the project timeline for our Red River Plant expansion may be delayed beyond the end of 2024.

Our future financial results will suffer if we do not effectively manage our expanded operations following the Arq Acquisition.

Following the Arq Acquisition, the size of our business has increased.

Our future results depend, in part, upon our ability to manage this expanded business, which will pose substantial challenges for management, including challenges related to the management and monitoring of new operations and associated increased costs and complexity.

Our future results depend, in part, upon our ability to manage this expanded business, which poses substantial challenges for management, including challenges related to the management and monitoring of new operations and associated increased costs and complexity.

There can be no assurance that we will be successful or that we will realize the expected operating efficiencies, cost savings, revenue enhancements and other benefits currently anticipated from the Arq Acquisition.

The Arq Acquisition will require significant capital for us to manufacture Arq’s products.

Arq is a development stage entity that to date has not generated any revenues.

Arq has historically had net losses and required multiple financing rounds to fund its business plan.

We will require significant capital to execute our business plan in order to manufacture Arq’s products.

A significant funding source will be our cash on hand.

Our capital expenditure requirements include improvements and enhancements at the Red River Plant and Corbin Facility.

Going forward there may be additional capital expenditure requirements for the expansion of capacity at the Red River Plant and Corbin Facility.

Manufacturing Legacy Arq's products and GAC products requires significant capital.

Legacy Arq was a development stage entity that to date has not generated any revenue.

Legacy Arq has historically had operating losses and required multiple financing rounds to fund its business plan.

We are currently spending significant capital to execute our business plan to manufacture Legacy Arq’s products as a feedstock for GAC products.

A significant funding source is our cash on hand.

We are targeting the end of 2024 for our first commercial production of Legacy Arq products and the end of 2024 for our first commercial production of GAC products.

To meet these production timing goals, we will need to raise additional capital in 2024.

We may not be successful in obtaining the required financing or, if financing is available to us, such financing may not be on terms that are favorable to us.

The failure to obtain financing as necessary to fund future capital expenditure requirements could result in the delay of the expansion of the Red River Plant and Corbin Facility and other manufacturing facilities.

The Arq Acquisition will require significant technological changes in manufacturing that may adversely affect the market acceptance of Arq’s products.

The failure to obtain financing in 2024 in order to enable the Company to produce Legacy Arq products and GAC products by the end of 2024 could result in a delay in executing our business plan.

The Arq Acquisition is requiring significant technological changes in manufacturing that may adversely affect the market acceptance of Legacy Arq’s products.

We will be producing new products that we have not yet sold commercially.

As such, production to date has not been at full throughput.

Arq’s new manufacturing technology has been extensively tested at scale, but continuous operations represent risks including an inability to achieve the scale-up efficiencies which have been assumed in our business plan.

In turn, this could impact throughput in the Corbin Facility, which could lead to lower production and higher operating costs.

Legacy Arq’s manufacturing technology has been extensively tested at scale, but continuous operations represent risks including an inability to achieve the scale-up efficiencies that have been assumed in our business plan.

In turn, this could

impact throughput in the Corbin Facility, which could lead to lower production and higher operating costs.

There is also risk of delays that are product-specific.

For example, we may not receive adequate customer acceptance or achieve acceptable performance given the specification differentiation between some of Arq’s products and the industry’s existing conventional products.

For example, we may not receive adequate customer acceptance or achieve acceptable performance given the specification differentiation between some of Legacy Arq’s products and the industry’s existing conventional products.

These risks could have a material adverse effect on our business, operating results and financial condition.

There could be no future demand for Arq’s products.

Our primary market for Arq Powder will be as a feedstock for AC, and although we believe current conditions are favorable as a result of excess demand versus supply, there can be no guarantee that this will continue.

There could be no future demand for Legacy Arq’s products.

Our initial use for Arq Powder is as a feedstock for AC, and although we believe current conditions are favorable as a result of excess demand versus supply, there can be no guarantee that this will continue.

Drivers of demand include factors beyond our control such as population growth and GDP growth, amongst others.

Any major global downturn could also materially negatively impact this demand.

New activated carbon supply is driven by new manufacturing sites being built, and we have little visibility on what additional manufacturing capacity other manufacturers may add in the future.

Arq’s business plan also assumes entry into new markets including additives for carbon black and asphalt.

Although testing data and feedback from potential customers have been positive to date, Arq has had no sales of its products and there can be no assurance that these products will be commercially viable.

Our commercial success will depend on our ability to sell Arq Powder into new markets, including as an additive into the carbon black and asphalt markets.

New AC supply is driven by new manufacturing sites being built, and we have little visibility on what additional manufacturing capacity other manufacturers may add in the future.

Our business plan and commercial success also assumes selling Arq Powder into new markets, including as an additive into the carbon black and asphalt markets.

Although testing data and feedback from potential customers have been positive to date, there can be no assurance that these products will be commercially viable.

As we attempt to develop and grow Arq Powder utilization worldwide, our success will depend on our ability to correctly forecast demand in these new markets.

There is no assurance that we will be able to increase our business to meet targets globally, or that projections on which such targets are based will prove accurate, or that the pace of growth or coverage will meet customer expectations.

Our inability to meet customer supply requirements due to damage to or insufficient production capacity of the Red River Plant may have a material adverse effect on our business, results of operations and financial condition.

We own and operate a single activation-based manufacturing plant, which is our sole manufacturing plant for producing and selling AC products to our customers.

Our ability to meet customer expectations, manage inventory, complete sales and achieve our objectives for operating efficiencies depends on the full-time operation of the Red River Plant.

Disruptions at any of our facilities could negatively impact our ability to meet customer supply requirements due to damage to or insufficient production capacity of the Red River Plant and may have a material adverse effect on our business, results of operations and financial condition.

We own and operate the Red River Plant, which is our sole manufacturing plant for producing and selling AC products to our customers, and are completing construction and commissioning activities on the Corbin Facility.

Our current and future ability to meet customer expectations, manage inventory, complete sales and achieve our objectives for operating efficiencies depends on the full-time operation of the Red River Plant, and the execution of our business plan depends on the completion of the Corbin Facility and the GAC expansion at the Red River Plant.

We cannot replicate our manufacturing methods at another plant due to the limited availability of similar manufacturing plants, the additional costs incurred in supplying raw materials such as lignite to another plant, and the risk of revealing our confidential and proprietary technologies and manufacturing processes.

If the Red River Plant was destroyed or damaged in a significant manner, we would suffer a loss of inventory to supply customers, likely incur additional costs to deliver products to our customers, and disrupt the ordinary course of our business.

If we experience a disruption at these facilities, due to natural disasters, extreme weather, other unanticipated problems such as labor difficulties, pandemics (including the COVID-19 pandemic), equipment failure, cyberattacks or other cybersecurity incidents, capacity expansion difficulties or unscheduled maintenance, we would suffer a loss of inventory to supply customers, likely incur additional costs to deliver products to our customers, and disrupt the ordinary course of our business.

In addition, if contractual demand exceeds manufacturing capacity, we would jeopardize our ability to fulfill obligations under our contracts, which could, in turn, result in reduced sales, profitability, contract penalties or terminations and damage to our customer relationships and could have a material adverse effect on our business.

While we have insured the Red River Plant against damage or destruction as well as for losses from business interruptions, there can be no assurance that any insurance coverage will be sufficient to cover any such losses.

Further, a prolonged disruption in our operations at the Red River Plant due to downtime or having to meet customer requirements that exceed its maximum manufacturing capacity would require us to seek alternative customer supply arrangements, which may not be on attractive terms to us or could lead to delays in distribution of products to our customers, either of which could have a material adverse effect on our business, results of operations and financial condition.

There can be no assurance that the Arq Acquisition will result in additional value for our stockholders or that the strategic evaluation process that we have undertaken will not have an adverse impact on our business.

As previously disclosed, in 2021, our board of directors initiated a strategic review to assess a range of strategic alternatives to maximize shareholder value.

We have incurred substantial expenses related to the this strategic review process and the Arq Acquisition.

While we have insured our facilities against damage or destruction as well as for losses from business interruptions, there can be no assurance that any insurance coverage will be sufficient to cover any such losses.

Further, a prolonged disruption in our operations at the Red River Plant due to downtime or having to meet customer requirements that exceed our maximum manufacturing capacity would require us to seek alternative customer supply arrangements, which may not be on attractive terms to us or could lead to delays in distribution of products to our customers, either of which could have a material adverse effect on our business, results of operations and financial condition.

There can be no assurance that the Arq Acquisition will result in additional value for our stockholders.

There can be no assurance that the Arq Acquisition will provide greater value to our stockholders than that reflected in the current price of our common stock.

As a result of the Arq Acquisition, perceived uncertainties related to our future may result in the loss of potential business opportunities and volatility in the market price of our common stock and may make it more difficult for us to attract and retain qualified personnel and business partners.

As a result of the Arq Acquisition, perceived uncertainties related to our future may result in the loss of potential business opportunities and volatility in the market price of our common stock, which may make it more difficult for us to attract and retain qualified personnel and business partners.

In connection with the Arq Acquisition, we may be required to take write-downs or write-offs, restructuring and impairment or other charges that could negatively affect our business, assets, liabilities, prospects, outlook, financial condition and results of operations.

Although we conducted extensive due diligence in connection with the Arq Acquisition, we cannot assure you that this diligence revealed all material issues that may be present, that it would be possible to uncover all material issues through a customary amount of due diligence, or that factors outside of ADES’ and Arq’s control will not later arise.

Even if our due diligence successfully identified certain risks, unexpected risks may arise and previously known risks may materialize in a manner not consistent with our preliminary risk analysis.

Further, as a result of the Arq Acquisition and the proposed operation of ADES going forward, we may be required to take write-offs or write-downs, restructuring and impairment or other charges that could negatively affect our business, assets, liabilities, prospects, outlook, financial condition and results of operations.

The failure to successfully integrate the businesses of ADES and Arq in the expected timeframe could adversely affect our future business and financial performance.

Although we conducted extensive due diligence in connection with the Arq Acquisition, unexpected risks may arise and previously known risks may materialize in a manner not consistent with our preliminary risk analysis.

Further, as a result of the Arq Acquisition, we may be required to take write-offs or write-downs, restructuring and impairment or other charges that could negatively affect our business, assets, liabilities, prospects, outlook, financial condition and results of operations.

The failure to successfully integrate the Legacy Arq businesses in the expected timeframe could adversely affect our future business and financial performance.

The combination of two independent companies is a complex, costly and time-consuming process.

As a result, we will be required to devote significant management attention and resources to integrate the business practices and operations of ADES and Arq.

The integration process may disrupt the business of either or both of the companies and, if implemented ineffectively, could preclude realization of the full benefits expected by us.

The failure by us to meet the challenges involved in successfully integrating the operations of Arq or otherwise realizing the anticipated benefits of the Arq Acquisition could cause an interruption to our business activities and could seriously harm our results of operations.

In addition, the integration of Arq may result in material unanticipated problems, expenses, liabilities, competitive responses, loss of customer relationships and diversion of management’s attention, and may cause our stock price to decline.

The difficulties of combining the operations of ADES and Arq include, among others:

As a result, we have devoted significant management attention and resources to integrate Legacy Arq's business practices and operations.

We may not be successful in integrating the operations of Legacy Arq or otherwise realizing the anticipated benefits of the Arq Acquisition.

In addition, the integration of Legacy Arq may result in material unanticipated problems, expenses, liabilities, competitive responses, loss of customer relationships and diversion of management’s attention, and may cause our stock price to decline.

The difficulties of combining the operations of the two companies include, among others:

• managing a larger company;

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• coordinating sales, distribution and marketing efforts;

• maintaining R&D technology momentum and lead customer technical collaboration progress;

• maintaining research and development technology momentum and leading customer technical collaboration progress;

• significant changes to current market conditions that may adversely affect the business plan;

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• changes in applicable laws and regulations;

• managing tax costs or inefficiencies associated with integrating the operations of ADES and Arq;

• managing tax costs or inefficiencies associated with integrating Legacy Arq's operations;

• unforeseen expenses or delays associated with the Arq Acquisition;

• taking actions that may be required in connection with obtaining regulatory approvals.

Many of these factors will be outside of our control and any one of them could result in increased costs, decreased revenues and diversion of management’s time and energy, which could materially impact our business, financial condition and results of operations.

In addition, even if the operations of Arq are integrated successfully, we may not realize the full benefits of the Arq Acquisition, including the synergies, cost savings or growth opportunities that we expect.

Many of these factors are outside of our control and any one of them could result in increased costs, decreased revenue and diversion of management’s time and energy, which could materially impact our business, financial condition and results of operations.

In addition, even if the operations of Legacy Arq are integrated successfully, we may not realize the full benefits from the Arq Acquisition, including the synergies, cost savings or growth opportunities that we expect.

These benefits may not be achieved within the anticipated timeframe, or at all.

As a result, we cannot assure you that the combination of ADES and Arq will result in the realization of the full benefits anticipated from the Arq Acquisition.

Specifically, the realization of the full benefits from the Arq Acquisition is dependent on our ability to construct new facilities and to integrate Arq’s Powder on the projected timeline and within the projected budget.

If these anticipated capital expenditures are delayed, whether as a result of unanticipated challenges in permitting, construction or economic conditions, the cost of such activities may increase and the timing of projected revenues may be impacted.

Further, the costs of such construction activities may significantly exceed the costs included in the projections reviewed by ADES and Arq in connection with the Arq Acquisition.

Specifically, the realization of the full benefits from the Arq Acquisition is dependent on our ability to construct expansions to existing facilities and to integrate Arq Powder on the projected timeline and within the projected budget.

Further, the costs of such construction activities may significantly exceed the budgeted costs.

The costs of construction or other anticipated capital expenditures are subject to the effects of the current inflationary environment and we may not be able to successfully offset the effects of inflation.

Strategic relationships upon which Arq relies on are subject to change, which may diminish our ability to conduct our operations.

Our ability to successfully produce Arq’s products and expand their utilization as intended depends on developing and maintaining close working relationships with industry participants.

In addition, the dynamics of maintaining these relationships with strategic partners may require us to incur expenses or undertake activities we would not otherwise be inclined to do.

If these strategic relationships are not established or maintained, our business prospects may be limited, which could negatively impact our business and results of operations.

The synergies attributable to the Arq Acquisition may vary from expectations.

We may fail to realize the anticipated benefits and synergies expected from the Arq Acquisition, which could adversely affect our business, financial condition and operating results.

The success of the Arq Acquisition will depend, in significant part, on our ability to successfully integrate the businesses of ADES and Arq and realize the anticipated strategic benefits and synergies.

We may fail to realize the anticipated benefits and synergies expected from the Arq Acquisition.

Our success will depend, in significant part, on our ability to successfully integrate the Legacy Arq business and realize the anticipated strategic benefits and synergies.

We believe that the combination of the two businesses will allow us to enter into more diversified, higher margin markets with our products.

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If we are not able to achieve these objectives and realize the anticipated benefits and synergies expected from the Arq Acquisition within the anticipated timeframe or at all, our business, financial condition and operating results may be adversely impacted.

Business issues currently faced by ADES or Arq may be imputed to the operations of the other.

To the extent either ADES or Arq currently has, or is perceived by customers to have, operational challenges, such as service performance, safety issues or workforce issues, those challenges may raise concerns by existing customers of ADES and Arq, respectively, which may limit or impede our future ability to obtain additional business from those customers.

If we fail to develop or maintain an effective system of internal controls as we integrate Arq’s business operations and processes with ours, we may not be able to accurately report our financial results or prevent fraud.

Strategic relationships upon which we rely on are subject to change, which may diminish our ability to conduct our operations.

Our ability to successfully produce Legacy Arq’s products and expand their utilization as intended depends on developing and maintaining close working relationships with industry participants.

In addition, the dynamics of maintaining these relationships with strategic partners may require us to incur expenses or undertake activities we would not otherwise be inclined to do.

If these strategic relationships are not established or maintained, our business prospects may be limited, which could negatively impact our business and results of operations.

If we fail to develop or maintain an effective system of internal controls as we integrate Legacy Arq’s business operations and processes with ours, we may not be able to accurately report our financial results or prevent fraud.

As a result, stockholders could lose confidence in our financial reporting, which would harm our business and the trading price of our common stock.

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The financial effects of Tinuum Group providing indemnification under performance guarantees of its RC facilities are largely unknown and could adversely affect our financial condition.

Tinuum Group indemnifies certain utilities and lessees of RC facilities for particular risks associated with the operations and tax treatment of those facilities.

Tinuum Group, LCC ("Tinuum Group"), of which we hold a 42.5% ownership interest, indemnifies certain utilities and lessees of RC facilities for particular risks associated with the operations and tax treatment of those facilities.

We have provided limited, joint and several guarantees of Tinuum Group’s obligations under those leases.

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A pandemic, epidemic or outbreak of an infectious disease such as COVID-19 may materially adversely affect our business.

The global or national outbreak of an infectious disease, such as COVID-19, may cause disruptions to our business and operational plans, which may include (i) shortages of employees, (ii) inefficiencies, delays and additional costs in our manufacturing, sales and customer service efforts, (iii) recommendations of, or restrictions imposed by, government and health authorities, including quarantines, to address an infectious disease, such as the COVID-19 pandemic, and (iv) restrictions that we impose, including facility shutdowns, to ensure the safety of employees and others.

COVID-19 pandemic has had, and continues to have, a significant impact around the world, prompting governments and businesses to take unprecedented measures in response.

we impose, including facility shutdowns, to ensure the safety of employees and others.

The COVID-19 pandemic has had, and continues to have, a significant impact around the world, prompting governments and businesses to take unprecedented measures in response.

While it is not possible to predict their extent or duration, these disruptions may have a material adverse effect on our business, financial condition and results of operations.

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Uncertainty as to the future of such laws and regulations, changes to such laws and regulations or granting of extensions of compliance deadlines has had, and will likely continue to have, a material effect on our business.

A significant market driver for our existing products and services and those planned in the future are existing and expected environmental laws and regulations, particularly those addressing the reduction of mercury and other emissions from coal-fired electricity generating units.

If such laws and regulations are delayed, or are not enacted or are repealed or amended to be less strict, or include prolonged phase-in periods, or are not enforced, our business would be adversely affected by declining demand for such products and services.

The implementation of environmental regulations regarding certain pollution control and permitting requirements has been delayed from time to time due to various lawsuits.

The uncertainty created by litigation and reconsiderations of rule-making by the EPA has negatively impacted our business, results of operations and financial condition and will likely continue to do so.

The uncertainty created by litigation and reconsideration of rule-making by the EPA has negatively impacted our business, results of operations and financial condition and will likely continue to do so.

To the extent federal, state and local legislation mandating that electric power generating companies serving a state or region purchase a minimum amount of power from renewable energy sources such as wind, hydroelectric, solar and geothermal, and such amount lessens demand for electricity from coal-fired plants, the demand for our products and services would likely decrease.

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That, in turn, will depend on a number of factors, including the specific requirements imposed by any such laws or regulations, the periods over which those laws or regulations are or will be phased in, the amount of public opposition and the state and cost of commercial development of related technologies and processes.

In addition, Public Utility Commissions ("PUCs") may not allow utilities to charge consumers for, and pass on the cost of, emissions control technologies without federal or state mandates.

All of Arq’s development operations will be subject to environmental permitting and regulations that can make operations expensive, or prohibit them altogether.

Arq uses coal waste as its feedstock and the majority of waste sites targeted by Arq for development contain potential environmental liabilities.

Arq therefore may be subject to potential risks and liabilities associated with pollution of the environment and the disposal of waste products that could occur as a result of its development and production activities.

We cannot reasonably predict the impact that any such future laws or regulations or public opposition may have on our results of operations, financial condition or cash flows.

With the Arq Acquisition, we will be subject to additional significant governmental regulations, which may negatively impact our operations and costs of conducting business.

Arq’s operations are governed by extensive laws and regulations, including:

In addition, public utility commissions may not allow utilities to charge consumers for, and pass on the cost of, emissions control technologies without federal or state mandates.

Our development operations at the Corbin Facility are subject to environmental permitting and regulations that can make operations expensive, or prohibit them altogether.

We use coal waste as a feedstock to produce Arq Powder, and the majority of coal waste sites targeted by us for development contain potential environmental liabilities.

Therefore, we may be subject to potential risks and liabilities associated with pollution of the environment and the disposal of waste products that could occur as a result of these development and production activities.

Further, we cannot reasonably predict the impact that any such future laws or regulations or public opposition may have on our results of operations, financial condition or cash flows.

With the Arq Acquisition, we are subject to additional significant governmental regulations, which may negatively impact our operations and costs of conducting business.

The Corbin Facility's operations are governed by extensive laws and regulations, including:

• laws and regulations related to exports, taxes and fees;

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On February 9, 2022, the EPA published a new proposed rule revoking the May 2020 withdrawal of the 2016 supplemental finding and affirming that it is "appropriate and necessary" to regulate HAP emissions from coal- and oil-fired EGUs.

On February 15, 2023, the EPA issued a final rule revoking the May 2020 reconsideration and affirming that it is "appropriate and necessary" to regulate HAP emissions from coal- and oil-fired EGUs.

On April 3, 2023, the EPA issued a proposed update to MATS that amongst other potential modifications, proposed a reduction to the mercury emission limits for lignite coal-fired EGUs.

Any final action taken by the EPA related to MATS that decreases demand for our products for mercury removal will have a negative effect on our financial results.

The timing and content of the final reconsideration rule are unknown.

Uncertain geopolitical conditions could adversely affect our business.

Uncertain geopolitical conditions, including the invasion of Ukraine, sanctions against Russia and other potential impacts on this region's economic environment and currencies may cause disruptions in our business.

These include logistics delays or shortages in producing and shipping certain of our raw materials, increases in energy prices that could increase costs of certain of our raw materials, increases in transportation costs from overall higher gasoline prices and cyber-attacks targeted at U.S.

power infrastructure that could impact demand for our products.

The timing and content of the proposed updates to the rule are unknown.

The failure of tariffs placed on U.S.

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have enacted an anti-dumping duty order on steam AC products from China.

In 2018, the order was extended for an additional five years.

In November 2023, the order was extended for an additional five years.

The amount of anti-dumping duties collected on imports of steam AC from China is reviewed annually by the U.S.

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In addition, market competition could negatively impact our ability to maintain or raise prices or maintain or grow our market position.

We compete against certain significantly larger and/or more established companies in the market for consumables and other products that provide mercury emissions reduction, water treatment and air purification.

Additionally, our competitors are significantly larger and/or more established companies in the market for consumables and other products that provide mercury emissions reduction, water treatment and air purification.

Reduction of coal consumption by North American electricity power generators could result in less demand for our products and services.

If utilities significantly reduce the number of coal-fired electricity generating units or the amount of coal burned without a corresponding increase in the services required at the remaining units, this could reduce our revenues and materially and adversely affect our business, financial condition and results of operations.

If utilities significantly reduce the number of coal-fired electricity generating units or the amount of coal burned without a corresponding increase in the services required at the remaining units, this could reduce our revenue and materially and adversely affect our business, financial condition and results of operations.

The amount of coal consumed for North American electricity power generation is affected by, among other things, (1) the location, availability, quality and price of alternative energy sources for power generation, such as natural gas, fuel oil, nuclear, hydroelectric, wind, biomass and solar power;

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The price of natural gas has remained relatively competitive for power generation and the use of natural gas is perceived as having a lower environmental impact than burning coal.

Natural gas-fired plants are cheaper to construct, and permits to construct these plants are easier to obtain, and ongoing costs of natural gas-fired plants associated with meeting environmental compliance are lower.

Natural gas-fired plants are cheaper to construct, and permits to construct these plants

are easier to obtain, and ongoing costs of natural gas-fired plants associated with meeting environmental compliance are lower.

Possible advances in technologies and incentives, such as tax credits that enhance the economics of renewable energy sources, could make those sources more competitive than coal.

Any reduction in the amount of coal consumed by domestic electricity power generators, whether as a result of new power plants utilizing alternative energy sources or as a result of technological advances, could reduce the demand for our current products and services, thereby reducing our revenues and materially and adversely affecting our business and results of operations.

Any reduction in the amount of coal consumed by domestic electricity power generators, whether as a result of new power plants utilizing alternative energy sources or as a result of technological advances, could reduce the demand for our current products and services, thereby reducing our revenue and materially and adversely affecting our business and results of operations.

Additionally, long-term changes in environmental regulation that threaten or preclude the use of coal or other fossil fuels as a primary fuel source for electricity production may result in the reduction or closure of a significant number of coal-fired electric generating units, and may adversely affect our business, financial condition and results of operations.

The loss of, or significant reduction in, purchases by our largest customers could adversely affect our business, financial condition or results of operations.

For 2022, we derived approximately 51% of our total consumable revenues from our five largest customers.

The loss of, or significant reduction in, revenue from our largest customers could adversely affect our business, financial condition or results of operations.

For 2023, we derived approximately 48% of our total consumable revenue from our five largest customers.

Our top three customers accounted for approximately 37% of our total consumable revenue for 2023.

If any of our five largest customers were to significantly reduce the quantities of consumables they purchase from us, it may adversely affect our business, financial condition and results of operations.

Uncertain geopolitical conditions could adversely affect our business.

Uncertain geopolitical conditions, including the conflicts in the Middle East, the invasion of Ukraine, sanctions against Russia and other potential impacts on the world economy and currencies may cause disruptions in our business.

power infrastructure that could impact demand for our products.

Disruptions of supply chains may affect volatility in price and availability of raw materials.

The development of geopolitical conflicts in 2022 has contributed to disruptions of supply chains, resulting in cost increases for commodities, goods and services in many parts of the world.

Significant disruptions of supply chains and higher costs persisted in 2022 and may continue into 2023 and beyond.

The continuation of geopolitical conflicts in 2023 has continued to disrupt supply chains, resulting in cost increases for commodities, goods and services in many parts of the world.

Disruptions of supply chains and higher costs may continue into 2024 and beyond.

The economic effects from these events over longer terms could negatively impact our business and results of operations.

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We may experience a shortage of reliable and adequate transport capacity and any material increase in transportation costs could have a material adverse effect on our results of operations.

We currently plan to transport Arq's filter cake from the Corbin Facility to the Red River Plant by rail and truck.

We currently plan to transport our Arq Powder based filter cake produced at the Corbin Facility ("Wet Cake") to the Red River Plant by rail and truck.

We may experience roadway or railway transportation disruptions that could have a material adverse effect on our operations or financial condition.

There can be no assurance that we will be able to secure sufficient railway transport capacity to transport raw materials from the Corbin Facility to the Red River Plant.

There can be no assurance that we will be able to secure sufficient truck or railway transport capacity to transport raw materials from the Corbin Facility to the Red River Plant.

Further, in the event of railway transport shortages, there can be no assurance that road transportation will be able to satisfy the shortfall.

Raw materials may also be combustible or ignitable and appropriate care and permitting may be required in handling and transporting such materials.

Potential transportation classifications of raw materials may require permitting, and special care and handling to transport such materials.

In addition, any material increase in transportation costs could have a negative effect on the competitiveness of our future products, which may in turn have a material adverse effect on our business and results of operations.

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At the Five Forks Mine, the risks are primarily operational risks associated with the maintenance and operation of the heavy equipment required to dig and haul the lignite and risks relating to producing lower than expected lignite quality or recovery rates.

Additionally, cost of inputs in our mining operation, most notably fuel cost, can create operational risks.

Additionally, the cost of inputs in our mining operation, most notably fuel cost, can create operational risks.

The failure to adequately manage these risks could result in significant personal injury, loss of life, damage to mineral properties, production facilities or mining equipment, damage to the environment, delays in or reduced production and potential legal liabilities.

We also own the Marshall Mine, a former lignite coal mine located in Texas, which ceased mining operations in the third quarter of 2020 and is currently being reclaimed.

Reclamation operations by their nature involve a high level of uncertainty and are often affected by risks and hazards outside of our control.

In light of where we are in the reclamation process at the Marshall Mine, the current risks associated with the Marshall Mine are primarily those associated with our inability to fulfill our obligations in the reclamation process.

The failure to adequately manage these risks could result in damage to the environment, delays in reclamation and potential legal liabilities.

Our operations and products are subject to extensive safety, health and environmental requirements that could increase our costs and/or impair our ability to manufacture and sell certain products.

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These include requirements to obtain and comply with various environmental-related permits for constructing any new facilities (or modifications to existing facilities) and operating all of our existing facilities.

In addition, the Red River Plant may become subject to greenhouse gas emission trading requirements under which we may be required to purchase emission credits if our emission levels exceed our allocations.

Greenhouse gas regulatory programs that have been adopted, such as cap-and-trade programs, have not had a significant impact on our business to date.

However, costs of complying with regulations could increase, as concerns related to greenhouse gases and climate change continue to emerge.

Costs of complying with regulations could increase, as concerns related to greenhouse gases and climate change continue to emerge.

The enactment of new environmental laws and regulations and/or the more aggressive interpretation of existing requirements could require us to incur significant costs for compliance or capital improvements or limit our current or planned operations, any of which could have a material adverse effect on our earnings or cash flow.

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We may not be successful in achieving our growth expectations related to new products in our existing or new markets.

We may not be successful in achieving our growth expectations from developing new products for our existing or new markets.

Further, there can be no assurance that costs incurred to develop new products will result in an increase in revenues.

Additionally, our ability to bring new products to the market will depend on various factors, including, but not limited to, solving potential technical or manufacturing difficulties, competition and market acceptance, which may hinder the timeliness and cost to bring such products to production.

Our ability to bring new products to the market will depend on various factors, including, but not limited to, solving potential technical or manufacturing difficulties, competition and market acceptance, which may hinder the timeliness and cost to bring such products to production.

Further, there can be no assurance that costs incurred to develop new products will result in an increase in revenue.

These factors or delays could affect our future operating results.

Natural disasters could affect our operations and financial results.

Natural disasters or extreme weather could affect our operations and financial results.

We operate facilities, including the Red River Plant, Five Forks Mine and the Corbin Facility, that are exposed to natural hazards, such as floods, windstorms and hurricanes.

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Conversely, abnormally high loads on geographic electrical grids, resulting in increased demand of coal-fired power plants to produce electricity, could impact our ability to meet customer contracts and demands.

Failure to effectively monitor and respond to environmental, social or governance (“ESG”) matters, including our ability to set and meet reasonable goals related to climate change and sustainability efforts, may negatively affect our business and operations.

Regulatory developments and stakeholder expectations relating to ESG matters are rapidly changing.

Concern over climate change has increased focus on the sustainability of practices and products in the markets we serve, and changes to laws and regulations regarding climate change mitigation may result in increased costs and disruption to operations.

Moreover, the standards by which ESG matters are measured are developing and evolving, and certain areas are subject to assumptions that could change over time.

If we are unable to recognize and respond to such developments, or if our existing practices and procedures are not adequate to meet new regulatory requirements, we may miss corporate opportunities, become subject to regulatory scrutiny or third-party claims, or incur costs to revise operations to meet new standards.

In 2024, we plan to publish our first corporate responsibility and sustainability tear sheet to address the impact of our operations on climate change and discuss material social, governance and environmental issues and our goals related to the same.

Any failure or perceived failure to achieve our sustainability goals or to act responsibly with respect to such matters may negatively impact our operations and/or financial condition.

While we monitor a broad range of ESG issues, there can be no assurance that we will manage such issues successfully, or that we will successfully meet the expectations of our stakeholders, consumers and employees.

Information technology vulnerabilities and cyberattacks on our networks could have a material adverse impact on our business.

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Techniques used to obtain unauthorized access to or sabotage systems change frequently and often are not recognized until after they are launched against a target, and we may be unable to anticipate these techniques or to implement adequate preventative measures.

A breach of our IT systems and security measures as a result of third party action, malware, employee error, malfeasance or otherwise could materially adversely impact our business and results of operations and expose us to customer, supplier and other third party liabilities.

A breach of our IT systems and security measures or those of our third party partners as a result of third party action, malware, employee error, malfeasance or otherwise could materially adversely impact our business and results of operations and expose us to customer, supplier and other third party liabilities.

Risks Related to Intellectual Property

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Such means of protecting our proprietary rights may not be adequate because they provide only limited protection or such protection may be prohibitively expensive to enforce.

We also enter into confidentiality and non-disclosure agreements with our employees, consultants and many of our customers and vendors, and generally control

access to and distribution of our proprietary information.

We also enter into confidentiality and non-disclosure agreements with our employees, consultants and many of our customers and vendors, and generally control access to and distribution of our proprietary information.

Notwithstanding these measures, a third party could copy or otherwise obtain and use our proprietary information without authorization.

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Indemnification of third-party licensees of our technologies against intellectual property infringement claims concerning our licensed technology and our products could be financially significant to us.

We have agreed to indemnify licensees of our technologies (including Tinuum Group) and purchasers of our products, and we may enter into additional agreements with others under which we agree to indemnify and hold them harmless from losses they may incur as a result of the alleged infringement of third-party rights caused by the use of our technologies and products.

may incur as a result of the alleged infringement of third-party rights caused by the use of our technologies and products.

Infringement claims, which may be expensive and time-consuming to defend, could have a material adverse effect on our business, operating results and financial condition, even if we are successful in defending ourselves (and the indemnified parties) against them.

Our future success depends in part on our ongoing identification and development of intellectual property and our ability to invest in and deploy new products, services and technologies into the marketplace efficiently and cost effectively.

The process of identifying customer needs and developing and enhancing products, services and solutions for our customser markets is complex, costly and uncertain.

The process of identifying customer needs and developing and enhancing products, services and solutions for our customer markets is complex, costly and uncertain.

Any failure by us to identify and anticipate changing needs, emerging trends and new regulations could significantly harm our future market share and results of operations.

Risk related to tax matters

An "ownership change" is more likely as a result of the Arq Acquisition and PIPE Investment and could limit our ability to utilize tax credit carryforwards to offset future tax liability.

We have certain general business credits carryforwards ("Tax Credits").

As of December 31, 2022, we had $86.1 million of Tax Credits, equaling 87% of our total gross deferred tax assets.

Our ability to use these Tax Credits to offset future federal income tax liability may be significantly limited if we experience an "ownership change" as discussed below.

Under the Internal Revenue Code ("IRC') and regulations promulgated by the U.S.

Treasury Department and the IRS, we may carry forward or otherwise utilize the Tax Credits in certain circumstances to offset current and future federal income tax liabilities, subject to certain requirements and restrictions.

To the extent that the Tax Credits do not otherwise become limited, we believe that we will have available a significant amount of Tax Credits in future years, and therefore the Tax Credits could be a substantial asset to us.

However, if we experience an "ownership change," as defined in IRC Sections 382 and 383, our ability to use the Tax Credits may be substantially limited, and the timing of the usage of the Tax Credits could be substantially delayed, which could significantly impair the value of that asset.

In general, an "ownership change" under IRC Sections 382 and 383 occurs if the percentage of stock owned by an entity’s 5% stockholders (as defined in IRC Section 382) increases by more than 50 percentage points over a rolling three-year period.

An entity that experiences an ownership change generally will be subject to an annual limitation on its pre-ownership change tax credit carryforwards equal to the tax liability which is attributable to the amount of the entity's taxable income that does not exceed the equity value of the entity immediately before the ownership change, multiplied by the long-term, tax-exempt rate posted monthly by the IRS (subject to certain adjustments).

The annual limitation would be increased each year to the extent that there is an unused limitation in a prior year.

The limitation on our ability to utilize the Tax Credits arising from an ownership change under IRC Sections 382 and 383 would depend on the value of our equity at the time of any ownership change.

If we were to experience an "ownership change," it is possible that a significant portion of our Tax Credits could expire before we would be able to use them to offset future federal income tax liability.

In connection with the Arq Acquisition and PIPE Investment, we issued additional shares of our stock.

We performed an IRC Section 382 analysis related to the Arq Acquisition and PIPE Investment and determined we had not experienced an ownership change as of the date of the Arq Acquisition and PIPE Investment.

However, the emergence of a single new 5% stockholder (as defined for purposes of IRC Section 382) or other changes, could result in our undergoing an "ownership change" and therefore there is a risk that we could experience an "ownership change" for purposes of IRC Sections 382 and 383.

On May 5, 2017, our board of directors (the "Board") approved the Tax Asset Protection Plan (the "TAPP") and declared a dividend of one preferred share purchase right (each, a "Right") for each outstanding share of our common stock.

The TAPP was adopted in an effort to protect stockholder value by attempting to diminish the risk that our ability to use the Tax Credits to reduce potential future federal income tax obligations may become substantially limited (the "Protection Plan").

Our ability to utilize our tax assets to offset future income tax liability could be limited from an "ownership change."

In general, under IRC Sections 382 and 383 of the Internal Revenue Code of 1986, as amended, ("IRC') a corporation that undergoes an "ownership change" is subject to limitations on its ability to utilize its pre-change net operating losses ("NOLs") and tax credits to offset future taxable income.

In general, an ownership change occurs if the aggregate stock ownership of certain stockholders (generally 5% stockholders (as defined in IRC Section 382), applying certain look-through rules) increases by more than 50 percentage points during the testing period (generally a three-year lookback period).

An entity that experiences an ownership change generally is subject to an annual limitation on its pre-ownership change tax asset carryforwards.

The annual limitation is increased each year to the extent that there is an unused limitation in a prior year.

We acquired certain tax assets (the "Legacy Arq Tax Assets") in the Arq Acquisition, totaling approximately $12.5 million.

The Legacy Arq Tax Assets are comprised of NOL carryforwards, of which $8.8 million were incurred in the U.S.

Further, as of December 31, 2023, we had approximately $86.1 million of general business credit carryforwards (the "Tax Credits"), totaling approximately 77% of consolidated tax assets.

Under the IRC and regulations promulgated by the U.S.

Treasury Department and the IRS, we may carry forward or otherwise utilize our NOLs and Tax Credits (collectively, "Tax Assets") in certain circumstances to offset current and future federal income tax liabilities, subject to certain requirements and restrictions.

However, our ability to use our Tax Assets to offset future federal income tax liability is limited if Legacy Arq or Arq, or both, experience an "ownership change" as discussed above.

To the extent that the Tax Assets do not otherwise become limited, we believe that we will have available a significant amount of Tax Assets in future years, and therefore the Tax Assets could be a substantial asset to us.

In connection with the Arq Acquisition and PIPE Investment, we issued additional shares of our common stock.

We performed an IRC Section 382 analysis as of the Acquisition Date and determined that we had not experienced an "ownership change" as of that date.

If we were to experience an "ownership change," it is possible that a significant portion of our Tax Assets could expire before we would be able to use them to offset future federal income tax liability.

Prior to the Acquisition Date, Legacy Arq completed numerous equity offerings that resulted in ownership changes.

We have not completed a formal IRC Section 382 analysis of Legacy Arq equity changes from its inception through the Acquisition Date, however, we believe that one or more "ownership changes" occurred during this time period as defined under Sections 382 and 383 and that a portion or all the Legacy Arq Tax Assets may subject to an annual limitation.

To mitigate the risk of an "ownership change," on May 5, 2017, our board of directors (the "Board") approved the Tax Asset Protection Plan (the "TAPP") and declared a dividend of one preferred share purchase right (each, a "Right") for each outstanding share of our common stock.

The TAPP was adopted in an effort to protect stockholder value by attempting to diminish the risk that our ability to use the ADES Tax Credits to reduce potential future federal income tax obligations may become substantially limited (the "Protection Plan").

During the years 2018-2023, we executed amendments to the TAPP (the "TAPP Amendments"), which amended the definition of "Final Expiration Date" under the TAPP to extend the duration of the TAPP and makes associated changes in connection therewith.

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In connection with the Arq Acquisition and PIPE Investment, we granted a waiver under the TAPP for certain shareholders to acquire more shares of our stock in the future, provided that such acquisition is not expected to, and does not, effect an "ownership change" under IRC Sections 382 and 383.

Despite the TAPP, our projections of what will effect an ownership change could be wrong, and with a waiver in place for certain shareholders, there is a risk that we experience an ownership change for purposes of IRC Sections 382 and 383 because of future acquisitions of our stock.

Risks Related to Our Common Stock

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We do not expect to repurchase additional shares of our common stock in the near term.

We are unlikely to resume our quarterly cash dividend program.

The Board first approved a $0.25 per share of common stock quarterly dividend in June 2017.

We last paid a cash dividend on March 10, 2020.

Under the Loan Agreement with CF Global, we are generally prohibited from paying dividends on our common stock as long as the Term Loan remains outstanding.

Even if the Term Loan with CF Global is repaid, it is unlikely for the foreseeable future that we will resume declaring quarterly cash dividends under a dividend program.

The payment of future dividends will be affected by, among other factors:

(1) our views on potential future capital requirements for investments in acquisitions;

(2) legal risks;

(3) stock repurchase programs;

(4) changes in federal and state income tax laws or corporate laws;

(5) changes to our business model;

and (6) restrictions on dividends set forth in the agreements governing our existing indebtedness (including the Loan Agreement with CF Global) and any additional indebtedness that we may incur in the future.

Our certificate of incorporation and bylaws contain provisions that may delay or prevent an otherwise beneficial takeover attempt of us.

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An increased focus on environmental, social and governance factors by institutional investors may negatively impact our access to capital and the liquidity of our stock price.

Some institutional investors have recently adopted Environmental, Social and Governance ("ESG") investing guidelines that may prevent them from increasing or taking new stakes with companies with exposure to fossil fuels.

Some institutional investors have recently adopted ESG investing guidelines that may prevent them from increasing or taking new stakes with companies with exposure to fossil fuels.

Additional institutional investors may adopt similar ESG investment guidelines.

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Given these emerging trends, liquidity in our common stock and our stock price may be negatively impacted.

We may require additional funding for our growth plans, and such funding may require us to issue additional shares of our common stock resulting in a dilution of your investment.

We require additional funding for our growth plans, and such funding may require us to issue additional shares of our common stock resulting in a dilution of your investment.

We estimate our funding requirements in order to implement our growth plans.

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Further, if we raise additional funds through the issuance of new shares of our common stock, any shareholders who are unable or unwilling to participate in such an additional round of fund raising may suffer dilution of their investment.

Certain legacy Arq shareholders and participants in the PIPE Investment hold a significant portion of the voting power of ADES common stock.

Certain legacy Arq shareholders and participants in the PIPE Investment hold a significant percentage of our outstanding common shares.

Accordingly, such persons, acting individually or together, could have the ability to exert a substantial influence on actions requiring a stockholder vote.

For example, Jeremy Blank, a former director of Arq Ltd.

and who is currently one of our directors through his affiliates, hold approximately 2.36% of the outstanding shares of our common stock, and Julian McIntyre, who is Arq's former chief executive officer and director of Arq and who is currently one of our directors, holds approximately 4.49% of the outstanding shares of ADES common stock.

Certain Legacy Arq shareholders and participants in the PIPE Investment hold a significant portion of the voting power of our common stock.

Certain Legacy Arq shareholders and participants in the PIPE Investment hold a significant percentage of our outstanding common stock, and such persons, acting individually or together, could have the ability to exert a substantial influence on actions requiring a stockholder vote.

The influence of these significant stockholders may be used in a manner that other stockholders may not support.

Any such concentration of ownership may have the effect of delaying certain corporate actions, and may consequently impact the ability of other stockholders to influence the management and policies of ADES.

The conversion of the outstanding shares of our Series A Preferred Stock would dilute the ownership of holders of our Common Stock and may adversely affect the market price of our Common Stock.

Each share of our Series A Preferred Stock will be automatically converted into shares of Common Stock at the conversion ratio described herein upon the approval by the holders of the percentage of Common Stock required to approve such conversion under the applicable rules of Nasdaq.

As of February 24, 2023, 5,294,462 shares of our Series A Preferred Stock were outstanding, representing approximately 16% of our outstanding common stock on an as-converted basis.

In addition, prior to the conversion of the Series A Preferred Stock into Common Stock, each share of Series A Preferred Stock will accrue dividends on a quarterly basis at an annual rate of 8% on the $4.00 Original Issuance Amount per share of Series A Preferred Stock.

We will have the ability to pay any such dividends in kind by issuing additional shares of Series A Preferred Stock, which would increase the number of shares of Series A Preferred Stock outstanding and, consequently, the number of shares of our Common Stock that would be issuable upon the conversion of the Series A Preferred Stock.

The conversion of the Series A Preferred Stock to Common Stock would dilute the ownership interest of existing holders of our Common Stock, and any sales in the public market of the Common Stock issuable upon conversion of the Series A Preferred Stock would increase the number of shares of our Common Stock available for public trading, and could adversely affect prevailing market prices of our Common Stock.

Unresolved Staff Comments

Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.

What changed 10-K

Item 1A. Risk Factors