What changed in this filing

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Item 1. Business

2023-03-08 compared with 2022-03-08 · 202 added, 110 removed, 160 unchanged (66% of the section changed)

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("ADES"), a Delaware company incorporated in 2011, succeeded ADA as the publicly-held corporation and ADA became a wholly-owned subsidiary of ADES.

In 2018, we acquired ADA Carbon Solutions, LLC ("Carbon Solutions") as a means to enter into the broader activated carbon ("AC") market and to expand our product offerings in the mercury control industry and other applicable activated carbon markets.

In February 2023, we acquired the subsidiaries of Arq Limited (hereafter the Arq Limited subsidiaries referred to as "Arq") to secure access to a unique feedstock, a manufacturing facility and certain patented processes as a means to further expand our product offerings.

This Annual Report on Form 10-K is referred to as the "Form 10-K" or the "Report." As used in this Report, the terms the "Company," "we," "us" and "our" means ADES and its consolidated subsidiaries.

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Our proprietary technologies and associated product offerings provide purification solutions to enable our customers to reduce certain contaminants and pollutants to meet the challenges of existing and potential future regulations.

As of December 31, 2021 and 2020, we held equity interests of 42.5% and 50.0% in Tinuum Group, LLC ("Tinuum Group") and Tinuum Services, LLC ("Tinuum Services"), respectively, which are both unconsolidated entities, and historically have both contributed significantly to our financial position and results of operations.

As of December 31, 2022 and 2021, we held equity interests of 42.5% and 50.0% in Tinuum Group, LLC ("Tinuum Group") and Tinuum Services, LLC ("Tinuum Services"), respectively, which are both unconsolidated entities, and through December 31, 2021, both contributed significantly to our financial position and results of operations.

We account for Tinuum Group and Tinuum Services under the equity method of accounting.

As a result of the expiration of Internal Revenue Code ("IRC") Section 45 - Production Tax Credit ("Section 45") refined coal tax credit program effective December 31, 2021, both Tinuum Group and Tinuum Services have substantially ceased operations as of December 31, 2021, and Tinuum Group is in the process of completing reclamation activities.

See further discussion below under "Segments - RC" of this item.

Further, Tinuum Group is in the process of completing reclamation activities.

AC is a specialized sorbent material that is used widely in a host of industrial and consumer applications to remove impurities, contaminants and pollutants from gas, water and other product or waste streams.

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Demand for AC products has been, and is expected to continue to be, driven by increasing environmental regulations pertaining to water and air purification, especially in the developed and more industrialized areas of the world.

Additionally, we believe environmental issues will continue to drive demand for AC in rapidly developing countries.

Additionally, we believe enhanced environmental and health advisory issues will continue to drive demand for AC in rapidly developing countries.

We see opportunities and are continuing to pursue diverse markets for our purification products outside of coal-fired power generation, including industrial applications, water treatment plants and other end markets.

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Increased environmental attention has been drawn to the monitoring and treatment of heavy metals, organic and inorganic compounds in groundwater to improve overall drinking water quality across North America.

Activated carbon, in various forms, has and will continue to play a key role in these remediation efforts.

Advanced Purification Technologies

In our Advanced Purification Technologies ("APT") segment, our AC and chemical products are used to purify contaminated liquid and gas streams from a variety of industrial sources including coal-fired power plants and waste-water treatment plants, among others.

Most of the North American coal-fired power generators installed equipment to control air pollutants, such as mercury, prior to or since the inception of the Mercury and Air Toxics Standards ("MATS").

AC, in various forms, has and will continue to play a key role in these remediation efforts.

Our products are used to purify contaminated liquid and gas streams from a variety of industrial sources including coal-fired power plants and waste-water treatment plants and other end markets.

Most of the North American coal-fired power generators installed equipment to control air pollutants, such as mercury, prior to or since the implementation of the Mercury and Air Toxics Standards ("MATS").

However, many power generators need consumable products to complement the operation of installed equipment on a recurring basis to chemically and physically capture mercury and other contaminants.

AC has been adopted as the most widely-used technology to capture mercury due to product efficiency and effectiveness, and currently accounts for the majority of the mercury control consumables in the North American market.

We offer AC and other chemical products and work with customers as they develop and implement a compliance control strategy that utilizes the consumables solutions that fit with their unique operating and pollution control configuration.

We offer AC and other chemical products and work with customers as they develop and implement a compliance control strategy which utilizes the consumables solutions that fit with their unique operating and pollution control configuration.

For the purification of water, AC has been used in the treatment of drinking water, wastewater, contaminated soil and groundwater to adsorb compounds causing unpleasant taste and odor and other contaminants.

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An emerging technology generating increasing interest by site engineering firms and owners is injecting highly engineered ACs into the subsoil, also described as "in situ" treatment, to intercept the contamination plume or to treat the groundwater.

In response to this market opportunity, in late 2021, we developed a new Colloidal Carbon Product ("CCP") platform, FluxSorb IS TM , that is currently in the process of or planning stages of in-field testing at multiple contaminated soil and groundwater remediation treatment sites.

Coal-fired power plants continue to be a significant, though declining, source of electricity in the United States.

In response to this market opportunity, in late 2021, we developed a new Colloidal Carbon Product ("CCP") platform, FluxSorb IS TM , which is currently in the initial stages of in-field testing at multiple contaminated soil and groundwater remediation treatment sites.

Coal-fired power plants continue to be a significant, though declining, source of electricity in the U.S.

Demand for our AC products related to coal-fired electricity generation is dependent on the availability and cost of alternative energy sources, such as natural gas, solar and wind energy.

We see opportunities to continue pursuing diverse markets for our purification products outside of coal-fired power generation, including industrial applications, water treatment plants and other markets.

We believe the Supply Agreement with Cabot, as discussed below, will drive adoption of our AC products by customers in some of those diverse end-markets.

Sales and Customers

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Our AC sales are generally made under requirements-based contracts ranging from one to five years.

Our chemical product sales are generally made on a purchase order by purchase order basis.

Our chemical product sales are generally made on an order by order basis.

Revenues from our top three customers comprised approximately 37% of our consolidated consumables revenues for the year ended December 31, 2022, and the loss of any of these customers would have a material adverse effect on our operating results.

Cabot Supply Agreement and Related Agreements

On September 30, 2020, we and Cabot Norit Americas, Inc., ("Cabot") entered into a supply agreement (the "Supply Agreement") pursuant to which we agreed to sell and deliver to Cabot, and Cabot agreed to purchase and accept from us, certain lignite-based activated carbon products ("Furnace Products").

Norit Supply Agreement and Related Agreements

On September 30, 2020, we and Cabot Norit Americas, Inc., ("Norit") entered into a supply agreement (the "Supply Agreement") pursuant to which we agreed to sell and deliver to Norit, and Norit agreed to purchase and accept from us, certain lignite-based AC products ("Furnace Products").

The term of the Supply Agreement is for 15 years with 10-year renewal terms that are automatic unless either party provides three years prior notice of intention not to renew before the end of any term.

Under the Supply Agreement, Norit also reimburses us for certain capital expenditures incurred by us that are necessary to manufacture the Furnace Products.

Reimbursements are comprised of revenues earned from capital expenditures incurred that will benefit both us and Norit (referred to as "Shared Capital") and revenues earned from capital expenditures incurred that will benefit Norit exclusively (referred to as "Specific Capital").

In the event that Norit ceases to make purchases under the Supply Agreement, Norit is obligated to pay the balance of any outstanding payments for Specific Capital.

Further, under the terms of the Supply Agreement, Norit was obligated to pay us $10.2 million of the certain reclamation costs (the "Reclamation Reimbursement") incurred under a reclamation contract entered into by us and a third party for full reclamation of the Marshall Mine (as defined below), inclusive of interest.

On February 25, 2022, we received $10.6 million in cash from Norit (the "Norit Payment") as a result of a change in control provision in the Supply Agreement (the "Change in Control"), which occurred as a result of the sale of Norit by its parent, Cabot Corporation.

Under the Change in Control, we received from Norit full payment of all amounts outstanding under the Reclamation Reimbursement, payment of all unbilled amounts related to Specific Capital for expenditures incurred through February 28, 2022 and payment of $0.8 million related to additional costs due to the third-party operator of Marshall Mine (the "Norit Reclamation Costs").

Under the reclamation contract, we were obligated to remit payment for the Norit Reclamation Costs to the third-party operator of the Marshall Mine, and such payment was remitted in March 2022.

The Change in Control did not impact any other provisions of the Supply Agreement.

Additionally, under the Change in Control, we received $1.3 million in advance of revenue to be recognized in future periods related to Specific Capital.

We believe the Supply Agreement will continue to provide material incremental sales volume and lower fixed operating costs on a per unit basis for our manufacturing plant located in Louisiana (the "Red River Plant").

Further, the Supply Agreement has expanded distribution of our AC products to additional markets outside of those we have traditionally served.

As a condition to entering into the Supply Agreement, on September 30, 2020, we entered into an agreement to purchase (the "Mine Purchase Agreement") from Cabot 100% of the membership interests in Marshall Mine, LLC (the "Marshall Mine Acquisition"), which owns a lignite mine located outside of Marshall, Texas (the "Marshall Mine"), for a nominal cash purchase price.

Immediately after completion of the Mine Purchase Agreement, we independently determined to commence activities to shutter the Marshall Mine, and we will incur the associated reclamation costs as further described below.

In conjunction with the execution of the Supply Agreement and the Mine Purchase Agreement, on September 30, 2020, we entered into a reclamation contract (the "Reclamation Contract") with a third party that provides a capped cost, subject to certain contingencies, in the initial amount of approximately $19.7 million plus an obligation to pay certain direct costs of approximately $3.6 million (collectively, the "Reclamation Costs") over the estimated reclamation period of 10 years.

Under the terms of the Supply Agreement, Cabot is obligated to reimburse us for approximately $10.2 million of the Reclamation Costs (the "Reclamation Reimbursements"), which are payable semi-annually over 13 years and inclusive of interest.

As the owner of the Marshall Mine, we were required to post a surety bond to ensure performance of our reclamation activities under the Surety Bond Indemnification Agreement (the "Surety Agreement").

As of December 31, 2021, we posted a surety bond of $16.6 million.

On February 1, 2021, we and a subsidiary of Cabot Corporation, Cabot Norit Nederland B.V.

("Cabot Corporation") entered into a five-year supply agreement ("EMEA Supply Agreement") to supply Cabot Corporation with lignite activated carbon products and other proprietary products used for mercury removal in utility and industrial coal-fired power plants in the EMEA market (as defined below).

Cabot Corporation will be the exclusive and sole reseller of these products within Europe, Turkey, the Middle East and Africa ("EMEA"), and we will have a first right to provide the products to Cabot for sale in the EMEA market.

Our primary competitors for consumable sorbent products include Cabot (CBT), Calgon Carbon, a subsidiary of Tokyo Stock Exchange listed Kuraray Co., Ltd., Donau Carbon Company, Midwest Energy Emissions Corp.

Our primary competitors for consumable sorbent products include Norit, owned by One Equity Partners, Calgon Carbon, a subsidiary of Tokyo Stock Exchange listed Kuraray Co., Ltd.

and Donau Carbon Company.

Our primary competitors for consumable chemical products include Midwest Energy Emissions Corp.

(MEEC) and Nalco Holding Company, a subsidiary of Ecolab Inc.

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The principal raw material we use in the manufacturing of AC is lignite coal, which is readily available.

We supply 100% of the lignite coal through our ownership of the Five Forks Mine ("Five Forks") to fulfill customer orders.

Five Forks is operated for us by Demery Resources Company, LLC ("Demery"), a subsidiary of the North American Coal Company.

We may also periodically purchase various ACs to supplement our inventory levels or to produce various products to serve AC certain markets.

We source 100% of the lignite coal to fulfill customer orders through our ownership of the Five Forks Mine ("Five Forks").

Five Forks is operated for us by a subsidiary of the North American Coal Company.

We may also periodically purchase various ACs to supplement our inventory levels or to produce various products to serve certain AC markets.

We purchase these various ACs through supply agreements or spot purchases with the producers.

We purchase various additives utilized in the production of AC.

The manufacturing of AC is dependent upon these various additives that are subject to price fluctuations and supply constraints.

The manufacturing of AC is dependent upon these various additives, which are subject to price fluctuations and supply constraints.

In addition, the number of suppliers who provide the necessary additives needed to manufacture our ACs is limited.

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We also purchase additives that are included in certain chemical products for resale to our customers through contracts with suppliers.

The manufacturing of these consumable products is dependent upon certain discrete additives that are subject to price fluctuations and supply constraints.

The manufacturing of these consumable products is dependent upon certain discrete additives, which are subject to price fluctuations and supply constraints.

In addition, the number of suppliers who provide the necessary additives needed to manufacture our chemical products are limited.

Supply agreements with these producers are generally renewed on an annual basis.

We purchase these chemical products through spot purchases with the producers.

Due to the nature of our business and the marketplace we operate in, there is an ebb and flow in demand for our product and consequently, our inventory levels may vary throughout the year.

Across our business, there is at times a need to supplement the available production at our Red River Plant to meet an increase in overall demand for our AC products.

For example, for the year ended December 31, 2021, we observed significant increases in demand for our AC products that exceeded our available inventory and production capacity.

As a result, we purchased third party products during 2021 and 2022 to supplement our current inventory and to increase our inventory balances to meet customer requirements.

As demand for our product increases, we will increase our production, if available to do so, and, as necessary, continue to purchase additional inventory from third parties to meet our customer obligations.

We own and operate the Red River plant, which is located in Louisiana.

We also lease land in which operate a manufacturing and distribution facility located in Louisiana.

We also lease land on which we operate a production and distribution facility located in Louisiana.

Additionally, we have sales, product development and administrative operations located in Colorado.

Refined Coal ("RC")

Through December 31, 2021, Tinuum Group provided reduction of mercury and nitrogen oxide ("NO X ") emissions at select coal-fired power generators through the production and sale of RC that qualified for Section 45 tax credits.

We benefited from Tinuum Group's production and sale of RC from our share of earnings from Tinuum Group's sales or leases of RC facilities to tax equity investors.

As noted above, the Section 45 tax credit period expired on December 31, 2021 and both Tinuum Group and Tinuum Services substantially ceased operations as of that date.

Tinuum Group is performing reclamation at its RC facilities and, along with Tinuum Services.

As such, our earnings and distributions from our RC segment substantially ceased as of December 31, 2021, and this will have a material adverse effect on our results of operations and financial position beginning in 2022.

See the separately filed financial statements of Tinuum Group included in Item 15 - "Exhibits, Financial Statement Schedules" ("Item 15") of this Report.

Our patented M-45 TM and M-45-PC TM technologies (collectively, the "M-45 Technology") are proprietary pre-combustion coal treatment technologies used to control emissions of nitrogen oxides ("NO X ") and mercury from coals burned in circulating fluidizer bed boilers and pulverized coal boilers, respectively.

Our patented CyClean TM technology, a pre-combustion coal treatment process provides electric power generators the ability to enhance combustion and reduce emissions of NO X and mercury from coals burned in cyclone boilers.

Our patents related to the RC segment are not expected to have significant commercial application beyond December 31, 2021 primarily due to the wind down of Tinuum Group and Tinuum Services as a result of the expiration of the Section 45 tax credit period.

Sales and Customers

Through December 31, 2021 we earned royalties ("M-45 Royalties") under a licensing arrangement with Tinuum Group for those RC facilities that utilized the M-45 Technology to treat coal for the reduction of emissions of both NO X and mercury.

With the closure of all of the RC facilities as of December 31, 2021, we will no longer earn M-45 Royalties and the loss of this revenue stream will have a material adverse effect on our results of operations and financial position beginning in 2022.

For the year ended December 31, 2021, M-45 Royalties comprised 14% of our total consolidated revenues and approximately 296% of our total consolidated operating income.

M-45 Royalties are recognized based upon a percentage of the per-ton, pre-tax margin as defined in the M-45 License.

For 2021 and 2020, we also derived substantial earnings in the RC segment from our equity method investments in Tinuum Group and Tinuum Services.

Additional information related to major customers is disclosed in Note 21 of the Consolidated Financial Statements included in Item 8 of this Report.

Historically, we generated substantial earnings and cash distributions from our ownership in Tinuum Group, which constructed RC facilities that were either leased or sold to tax equity investors who earned Section 45 tax credits for the production and sale of RC to utilities at their respective RC facilities.

We referred to these RC facilities as "invested RC facilities."

RC facilities that produced and sold RC and were not leased or sold, but wholly or partially owned by us or Tinuum Group, were referred to as "retained" RC facilities.

Through our direct ownership in retained RC facilities or indirect ownership through Tinuum Group, we earned Section 45 tax credits at retained RC facilities for the RC that was produced and sold to utilities.

For the years ended December 31, 2021 and 2020, we earned $0.4 million and $0.4 million of Section 45 tax credits, respectively.

As of December 31, 2021, we have cumulatively earned substantial tax credits from certain retained RC facilities, but have not been able to fully utilize them.

See Note 18 to our Consolidated Financial Statements included in Item 8 - "Financial Statements and Supplementary Data" ("Item 8") of this Report for additional information regarding our tax credits and other deferred tax assets.

Through December 31, 2021, Tinuum Services operated and maintained RC facilities under operating and maintenance agreements with owners or lessees of these RC facilities.

The following table provides summary information related to the Company's investment in Tinuum Group and the related RC facilities as of December 31, 2021 and tons of RC produced and sold for the year ended December 31, 2021:

# of RC Facilities Not Operating Invested Retained

RC Facilities 26 26 — —

RC tons produced and sold (000's) 64,455 144

The following table provides summary information related to the Company's investment in Tinuum Group and the related RC facilities as of December 31, 2020 and tons of RC produced and sold for the year ended December 31, 2020:

# of RC Facilities Not Operating Invested Retained

Facilities 26 3 23 —

RC tons produced and sold (000's) 64,982 693

Raw Materials

The principal raw materials used in our RC products were comprised of non-bromine based halogens.

Tinuum RC facilities were located at coal-fired power plants in the U.S.

In 2020 and in conjunction with the execution of the Supply Agreement, we purchased 100% of the membership interests in Marshall Mine, LLC, which owns a lignite mine located outside of Marshall, Texas (the "Marshall Mine").

We concluded that the Marshall Mine did not have any remaining economic reserves and independently determined to immediately commence activities to shutter it.

Accordingly, on September 30, 2020, we entered into a reclamation contract with a third party for the full reclamation of the Marshall Mine.

In September 2022, we entered into an agreement with a third-party to sell all membership interests in Marshall Mine, LLC.

The obligations of the parties to close the sale transaction are subject to certain events, including (1) obtaining the approval of the Railroad Commission of Texas for an operating permit in the name of the buyer or an affiliate of the buyer, and (2) replacing our surety bond with a reclamation performance bond, letter of credit or other form of security to which the buyer or an affiliate of the buyer is the principal that is satisfactory to the Railroad Commission of Texas.

We currently expect to close the sale transaction of the Marshall Mine during the first half of 2023.

Research and Development Activities

We have conducted research and development directed towards product development related to the Supply Agreement and other markets.

During the years ended December 31, 2021 and 2020, we incurred expenses of $0.4 million and $1.0 million, respectively.

We have conducted research and product development related to the customers and market that we currently serve or are pursuing.

During the years ended December 31, 2022 and 2021, we incurred research and development costs of $0.4 million and $0.4 million, respectively.

Legislation and Environmental Regulations

Our products and services, as well as Tinuum Group’s production and sale of RC, are used for the reduction of pollutants and other contaminants.

Our products and services are used for the reduction of pollutants and other contaminants.

Legislation and regulation limit the amount of pollutants and other contaminants permitted and may increase the need for our product.

Below is a summary of the primary legislation and regulation that affects the market for our products.

Federal Mercury and Air Toxic Standards ("MATS") Affecting Electric Utility Steam Generating Units

Environmental Protection Agency ("EPA") final "MATS Rule" went into effect in April 2012.

The EPA structured the MATS Rule as a Maximum Achievable Control Technology-based ("MACT-based") hazardous pollutant regulation applicable to coal and oil-fired Electric Utility Steam Generating Units ("EGU"), which generate electricity through steam turbines and have a capacity of 25 megawatts or greater, and provide for, among other provisions, control of mercury, control of acid gases such as hydrochloric acid ("HCl") and other Hazardous Air Pollutants ("HAPs").

Below is a summary of the primary legislation and regulation that currently affects the market for our current products.

Federal MATS Affecting Electric Utility Steam Generating Units

Environmental Protection Agency (the "EPA") final "MATS Rule" went into effect in April 2012.

Approximately 1,260 units in the U.S.

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According to our estimates, the MATS Rule sets a limit that we believe requires the capture of 80-90% plus of the mercury in the coal burned in electric power generation boilers as measured at the exhaust stack outlet for most plants.

The MACT standards are also known as National Emission Standards for Hazardous Air Pollutants ("NESHAP").

The MACT-based standards are also known as National Emission Standards for Hazardous Air Pollutants ("NESHAP").

Plants generally had four years to comply with the MATS Rule, and implementation of the MATS Rule is now largely completed.

We estimate that 52% of the coal-fired units that were operating in December 2012 when the MATS Rule was finalized have been permanently shut down, leaving approximately 469 units in operation in the U.S.

at the end of 2021.

as of December 31, 2022.

In April 2017, a review by the U.S.

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In May 2020, the EPA reconsidered and withdrew its 2016 "supplemental finding" associated with the cost benefit analysis of the MATS Rule.

In this action, EPA found that it was not "appropriate and necessary" to regulate HAPs emissions from coal- and oil-fired EGUs.

In this action, the EPA found that it was not "appropriate and necessary" to regulate HAPs emissions from coal- and oil-fired EGUs.

However, the EPA expressly stated that the reconsideration neither removed coal- and oil-fired EGUs from the list of sources that must comply with the MATS rule, nor rescinded the MATS Rule, which has remained continuously in effect.

ADES joined a number of parties in seeking review of this EPA action before the D.C.

President Biden identified EPA’s withdrawal of the supplemental finding as one of the actions to be reviewed for conformity with Biden Administration policy, and in February 2021, the Biden Administration moved that the pending judicial review of the supplemental finding withdrawal be held in abeyance.

President Biden identified the EPA’s withdrawal of the supplemental finding as one of the actions to be reviewed for conformity with Biden Administration policy, and in February 2021, the Biden Administration moved that the pending judicial review of the supplemental finding withdrawal be held in abeyance.

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, which is currently pending.

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Existing boilers typically had until January 31, 2017 to comply with the rule.

On December 1, 2014, the EPA announced the reconsideration of the industrial boiler MACT ("IBMACT") and proposed amendments to the version published January 31, 2013, representing technical corrections and clarifications.

The proposed amendments do not affect the applicability of the final rule.

The EPA estimated that approximately 600 coal-fired boilers will be affected by IBMACT, in industries such as pulp and paper.

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It does, however, propose to establish a voluntary incentives program for the removal of certain halides.

(though not all) of the proposed treatment options that the EPA is considering, selenium in FGD wastewater would be regulated.

In many (though not all) of the proposed treatment options that the EPA is considering, selenium in FGD wastewater would be regulated.

Some halogens may impact the effectiveness of biological wastewater treatment systems that are often used for the removal of selenium.

On August 3, 2021, the EPA initiated a supplemental rule-making initiative to strengthen certain discharge limits and intends to issue a proposed rule for public comment in Fall of 2022.

On August 3, 2021, the EPA initiated a supplemental rule-making initiative to strengthen certain discharge limits and stated its intention to issue a proposed rule for public comment in Fall of 2022, which has not yet been issued.

Additional U.S.

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Based on the existing and potential regulations, we believe the international market for mercury control products may expand in the coming years.

We believe the EMEA Supply Agreement with Cabot will help facilitate positioning our patent portfolio and existing commercial products in the EMEA region.

Mining Environmental and Reclamation Matters

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Although surety bonds are usually noncancelable during their term, many of these bonds are renewable on an annual basis and collateral requirements may change.

As of December 31,

2021, we posted a surety bond of approximately $7.5 million for reclamation of the Five Forks Mine and $16.6 million for the reclamation of Marshall Mine.

As of December 31, 2022, we posted a surety bond of approximately $7.5 million for reclamation of the Five Forks Mine and $16.6 million for the reclamation of Marshall Mine.

As of December 31, 2022, we held 86 U.S.

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provisional patents or applications that were pending, and two international patent applications that were either pending or filed relating to different aspects of our technology.

Our existing patents generally have terms of 20 years from the effective date of filing, with our next patents expiring beginning in 2022.

Our existing patents generally have terms of 20 years from the effective date of filing, with our next patents expiring in 2024.

Seasonality of Activities

The sale of our consumable products depends on the operations of the power generation units and industrial facilities in which the applicable consumables are provided.

The sale of our consumable products depends on the operations of the power generation units, industrial facilities and water treatment plants in which the applicable consumables are provided.

Power generation is weather dependent, with electricity and steam production varying in response to heating and cooling needs.

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During the period in which an outage may occur, which may range from one week to over a month, no consumables are used, and our sales may be correspondingly reduced.

The sale of our AC products for water purification depends on demand from municipal water treatment facilities where these products are utilized.

The sale of our AC products for water purification depends on demand from municipal water treatment facilities that use these products.

Depending on weather conditions and other environmental factors, the summer months historically have the highest demand for PAC, as one of the major uses for PAC is for the treatment of taste and odor episodes caused by increased degradation of organic contaminants and natural materials in water during the summer.

Additionally, the rainy season causes more PAC usage for the municipalities due to rain run-offs and contaminant dilution resulting in higher water treatment volumes.

Safety, Health and Environment

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As of December 31, 2022, we employed 147 personnel, 28 in Colorado and 119 in Louisiana, all of which were employed full-time.

Entry into Material Definitive Agreements

Securities Purchase Agreement

On February 1, 2023 (the "Acquisition Date"), we entered into a Securities Purchase Agreement (the "Purchase Agreement") with Arq Limited ("Arq Ltd."), a company incorporated under the laws of Jersey, pursuant to which we acquired all of the direct and indirect equity interests of Arq Ltd.'s subsidiaries (the "Arq Acquisition," and hereafter referred to as "Arq") in exchange for consideration (the "Purchase Consideration") totaling $31.2 million and consisting of (i) 3,814,864 shares of the Company's common stock, par value $0.001 per share (the "Common Stock"), valued at $12.4 million and (ii) 5,294,462 shares of the Company's Series A Convertible Preferred Stock, par value $0.001 per share (the "Series A Preferred Stock"), valued at $18.8 million.

In connection with the issuance of the Series A Preferred Stock pursuant to the Purchase Agreement, we filed the Certificate of Designations of Preferred Stock for the Series A Preferred Stock (the "Certificate of Designations") with the Secretary of State of the State of Delaware.

Capitalized terms used herein but not otherwise defined have the meaning set forth in the Purchase Agreement.

The Purchase Agreement contains customary representations, warranties and covenants.

The Arq Acquisition closed concurrently with execution of the Purchase Agreement.

Under the terms of the Purchase Agreement, 833,914 shares of the Series A Preferred stock issued to Arq Ltd.

are being held in escrow (the "Escrow Shares") pending a determination by the Internal Revenue Service (the "IRS") that no tax withholding is required on the Purchase Consideration issued to Arq Ltd.

( the "Arq Ltd.

Tax Liability").

We have estimated the fair value of the potential Arq Ltd.

Tax Liability at $3.3 million.

We accounted for the Arq Acquisition as an acquisition of a business as of the Acquisition Date.

The total Purchase Consideration was $31.2 million and has been preliminarily allocated to the acquired assets and assumed liabilities of Arq based on their estimated fair values as of the Acquisition Date.

Arq's principal office is located in London, United Kingdom, with additional offices located in Lexington and Corbin, Kentucky near its main production facility.

Arq is an environmental technology company that has developed a process for transforming coal waste into a purified, microfine carbon powder, known as Arq powder TM ("Arq Powder"), which can be used as an alternative to oil or in-ground mined coal to produce a range of noncombustible and combustible carbon-rich products.

With the completion of the Arq Acquisition, we intend to utilize Arq Powder as a feedstock to produce high-quality AC for use in water and air purification markets as well as sell Arq Powder as an additive into other markets.

Series A Preferred Stock

Each share of Series A Preferred Stock will be automatically converted into a share of Common Stock upon approval by the holders of the percentage of Common Stock required to approve such conversion under the applicable rules of The Nasdaq Stock Market ("Nasdaq"), without the need for any action on the part of the holders of Series A Preferred Stock (the "Conversion Approval").

Each share of Series A Preferred Stock is deemed to have an original issue price of $4.00 per share (the "Original Issue Amount").

The number of shares of Common Stock issued upon conversion of each share of Series A Preferred Stock shall be equal to the product of (i) the sum of (A) the Original Issue Amount plus (B) an amount equal to the cumulative amount of the accrued and unpaid dividends on such share at such time (regardless of whether or not declared or funds for their payment are lawfully available) divided by (ii) the Original Issue Amount, subject to adjustment as provided in the Certificate of Designations.

Holders of the Series A Preferred Stock are entitled to receive cumulative dividends which will accrue quarterly on the last day of each applicable quarter (whether or not declared or funds for their payment are lawfully available) and will be payable quarterly, in arrears, on the earlier to occur of (a) the date any dividend is paid to holders of Common Stock with respect to such quarter and (b) 30 days after the end of each quarter (the "Series A Quarterly Dividend") at the rate per share of Series A Preferred Stock equal to the greater of (i) if we declare a cash dividend on the Common Stock with respect to such quarter, the amount of the cash dividend that would be received by a holder of Common Stock in which such share of Series A Preferred Stock would be convertible on the record date for such cash dividend and (ii) an annual rate (the "Rate") of 8.0% of the Original Issue Amount per annum compounded quarterly (the "Coupon Dividend") with respect to such quarter.

The Rate will increase by 2.0% on the first day of the first quarter ending on or after the 635 th day following the closing date of the first issuance of Series A Preferred Stock and on each subsequent anniversary of such date.

The Series A Quarterly Dividend is payable in cash or in additional shares of Series A Preferred Stock (the "Series A PIK Shares"), at the Company's option.

The number of Series A PIK Shares to be issued shall be determined by dividing (i) the Series A Quarterly Dividend payable with respect to all shares of Series A Preferred Stock held by a holder thereof by (ii) the aggregate Original Issue Amount of all shares of Series A Preferred Stock held by a holder thereof, and each fractional Series A PIK Share will be rounded to the nearest whole Series A PIK Share (with 0.5 of a share being rounded down to 0.0).

In the event of our liquidation, dissolution or winding up, after payment or provision for payment of our debt and other liabilities, a holder of Series A Preferred Stock will receive a liquidating distribution equal to the amount of the cumulative accrued but unpaid dividends on each share of Series A Preferred Stock held by such holder.

After the payment to the holders of Series A Preferred Stock of such liquidation preference, the holders of outstanding shares of Series A Preferred Stock will participate pari passu with the holders of Common Stock on an as-converted basis in any remaining distributions out of the Company’s assets available for distribution to stockholders.

Holders of shares of Series A Preferred Stock will generally have no voting rights.

However, we are restricted from taking certain actions without the written consent or affirmative vote of the holders of at least a majority of the then outstanding shares of Series A Preferred Stock, including, but not limited to, consummating a merger with or into another party or a sale of substantially all of our assets;

issuing Common Stock or instruments convertible into Common Stock representing more than 20% of our outstanding share capital to the extent the applicable issuance requires approval of holders of Common Stock pursuant to applicable law or the rules of the applicable stock exchange on which the Common Stock is listed;

or authorizing, creating or issuing any Senior Stock or Parity Stock (each as defined in the Certificate of Designations) of the Company (or amending the provisions of any existing class of securities to make such class of securities Senior Stock or Parity Stock).

In addition, we are restricted from amending our Certificate of Incorporation or Bylaws in a manner that adversely affects the rights of the Series A Preferred Stock without the written consent or affirmative vote of the holders of at least 75% of the then outstanding shares of Series A Preferred Stock.

If the Conversion Approval has not been obtained prior, each outstanding share of Series A Preferred Stock will be redeemed by us on February 1, 2028 for cash, at a redemption price equal to the sum of (i) the product of (x) 140% and (y) the Original Issue Amount, plus (ii) an amount equal to the cumulative amount of accrued and unpaid dividends on such share of Series A Preferred Stock.

Subscription Agreements

Also, on February 1, 2023, we entered into Subscription Agreements (the "Subscription Agreements") with certain persons (the "Subscribers") pursuant to which the Subscribers subscribed for and purchased shares of Common Stock for an aggregate purchase price of approximately $15.4 million and at a price per share of $4.00 (the "PIPE Price Per Share" and such transaction, the "PIPE Investment").

The securities issued to the Subscribers under the Subscription Agreements were issued pursuant to an exemption from registration under Section 4(a)(2) of the Securities Act of 1933, as amended (the "Securities Act"), Rule 506 of Regulation D, which is promulgated thereunder, and Regulations S of the Securities Act.

ADES and its affiliates relied on this exemption from registration based in part on representations made by each of the Subscribers under the Subscription Agreements.

As a requirement of the Arq Acquisition, we appointed three new directors to our Board of Directors (the "New Directors"), each of whom was a director of Arq Ltd, and is considered a related party as of the Acquisition Date.

Each of the New Directors individually and/or through their affiliated entities were Subscribers in the PIPE Investment.

Registration Rights Agreement

Pursuant to the terms of the Purchase Agreement, we entered into a Registration Rights Agreement (the "Registration Rights Agreement") with Arq and the Subscribers to the Subscription Agreements described above.

The Registration Rights Agreement provides that as promptly as practicable following the closing of the Arq Acquisition, but no later than 150 days after the Acquisition Date, ADES will file a registration statement registering the resale of the shares of Common Stock received by Arq Ltd.

as Purchase Consideration and the Subscribers in the PIPE Investment (including shares of Common Stock issued upon conversion of the Series A Preferred Stock).

ADES will also use commercially reasonable efforts to have such registration statement declared effective as soon as practicable following the filing thereof, but no later than the earlier of (i) the 210th calendar day (or 270th calendar day if the U.S.

Securities and Exchange Commission (the "SEC") gives notice that it will review the registration statement) following the filing thereof and (ii) the 10th business day after the date the SEC gives notice that it will not review the registration statement, subject to certain conditions.

The Registration Rights Agreement further provides that certain of the investors party thereto will be entitled to customary "piggyback" registration rights.

Loan Agreement

On August 19, 2022, ADES and CF Global Credit, LP ("CF Global") executed a commitment letter pursuant to which CF Global offered to provide a $10.0 million term loan (the "Term Loan") to us.

The proceeds of the Term Loan are intended to be utilized for the general corporate purposes of ADES and its subsidiaries.

On February 1, 2023 (the "Closing Date"), ADES, as borrower, certain of its subsidiaries, as guarantors, and CF Global, as administrative agent and lender, entered into the Term Loan upon execution of a Term Loan and Security Agreement (the "Loan Agreement").

Capitalized terms used herein but not otherwise defined have the meaning set forth in the Loan Agreement.

The Term Loan has a term of 48 months and bears interest at a rate equal to either (a) Adjusted Term SOFR (subject to a 1.00% floor and a 2.00% cap) plus a margin of 9.00% paid in cash and 5.00% paid in kind or (b) Base Rate plus a margin of 8.00% paid in cash and 5.00% paid in kind, which interest on the Term Loan in each case shall be payable (or capitalized, in the case of in kind interest) quarterly in arrears.

We are permitted to prepay the Term Loan at any time subject to the following prepayment premium:

(i) prior to the twelve (12) month anniversary of the Closing Date, the Make-Whole Amount (as defined below), (ii) thereafter but prior to the thirty-six (36) month anniversary of the Closing Date, 2.00% of the outstanding principal amount of the Term Loan being repaid or prepaid or (iii) thereafter until the maturity date, 1.00% of the outstanding principal amount of the Term Loan being repaid or prepaid.

The "Make-Whole Amount", with respect to any repayment or prepayment, is (i) an amount equal to all required interest payable (except for currently accrued and unpaid interest) on the aggregate principal amount of the Term Loan subject to such prepayment or repayment from the date of such prepayment or repayment through but excluding the date that is the first anniversary of the Closing Date calculated using an interest rate equal to (x) Adjusted Term SOFR for an interest period of one month in effect on the third U.S.

Government Securities Business Day prior to such prepayment or repayment plus (y) 14.00% per annum and assuming all interest was paid in cash, plus (ii) a prepayment premium of 2.00% on the aggregate principal amount of the Term Loan subject to such prepayment or repayment.

The Term Loan is secured by substantially all of the assets of ADES and its subsidiaries, excluding those subsidiaries described in the agreement, subject to customary exceptions.

The Loan Agreement includes, among others, the following covenants:

(1) beginning March 31, 2023 and as of the end of each fiscal quarter thereafter, ADES must maintain a minimum cash balance of $5.0 million;

(2) (x) as of December 31, 2023, for the fiscal year then ended, ADES must have a minimum annual revenue, on a consolidated basis, of $70.0 million, (y) as of December 31, 2024, for the fiscal year then ended, ADES must have a minimum annual revenue, on a consolidated basis, of $85.0 million and (z) for any fiscal year thereafter, ADES must have a minimum annual revenue, on a consolidated basis, of $100.0 million;

(3) (x) as of December 31, 2024, for the fiscal year then ended, ADES must have a minimum EBITDA of $3.0 million and (y) for any fiscal year thereafter, ADES must have a minimum EBITDA of $16.0 million;

and (4) beginning after the fiscal quarter ending September 30, 2023, during an LTV Trigger Period, ADES must not exceed a loan to value ratio (based on the consolidated total assets of ADES and its subsidiaries) of 0.40:1.00.

In addition, in connection with the Loan Agreement and as consideration for the Term Loan, ADES agreed to issue to CF Global a warrant (the "Warrant") to purchase 325,457 shares of Common Stock.

The Warrant has an exercise price of $0.01 per share, subject to adjustment as set forth in the Warrant, is exercisable immediately and will expire on February 1, 2030.

The terms of the Warrant do not allow for cash exercise, and the Warrant may only be exercised pursuant to the terms thereof.

The Warrant was issued without registration under the Securities Act in reliance on the exemptions provided by Section 4(a)(2) of the Securities Act as transactions not involving a public offering and Rule 506 promulgated under the Securities Act as sales to accredited investors.

One of the New Directors is a principal of CF Global and both this director and CF Global are considered related parties as of the Acquisition Date.

Termination of Transaction Agreement

In connection with entry into the Purchase Agreement described above, that certain Transaction Agreement, dated August 19, 2022, by and among Elbert Holdings, Inc., Arq and ADES (the "Transaction Agreement") was terminated on February 1, 2023 pursuant to a termination agreement entered into by each of the parties to the Transaction Agreement.

The Transaction Agreement would have provided, subject to its terms and conditions, for a business combination of Arq Ltd.

By virtue of the termination of the Transaction Agreement, the Transaction Agreement became void and of no further force or effect, with no liability of any party to the Transaction Agreement.

Arq is an environmental technology company that has developed a process for transforming coal waste into a purified, microfine carbon powder, known as Arq Powder, which can be used as an alternative to oil or in-ground mined coal to produce a range of carbon products or as a feedstock for AC.

Additionally, Arq has developed a portfolio of additional product opportunities that include using Arq Powder as a component for asphalt, carbon black and power generation, that can achieve similar advantages in other large markets.

Arq has constructed a production facility at a large coal waste site in Corbin, Kentucky (the "Corbin Facility").

Arq processes coal mining waste and applies patented technology to produce Arq Powder, which has applications in a broad range of carbon products.

Arq Powder has unique properties, including low levels of impurities and small average particle size, which when used as a feedstock to produce certain carbon products may provide for advantages compared to coal or oil-based feedstocks in terms of cost and performance.

Arq Powder is in development stage, and we do not expect it to be commercially sold until 2024 due to ongoing capital projects to improve the operating capabilities of the Corbin Facility.

We believe the Arq Powder technology has several key environmental benefits:

(1) it enables the remediation of waste land, (2) it displaces native coal production while producing valuable products, and (3) it may also have a lower environmental impact than conventional alternatives because Arq Powder is derived from reclaimed waste.

We intend to first sell Arq Powder as a carbon filler for rubber composites and as a component for asphalt with an opportunity to evaluate expanding into other carbon products.

These products utilizing Arq Powder are expected to have a lower carbon footprint compared to similar products utilizing conventional materials.

These options are currently in various stages of proof of concept testing or customer testing.

As we complete capital upgrades to the Red River Plant, we intend to use Arq Powder as a bituminous based feedstock to produce high-quality AC for use in various markets.

Through internal testing, we have demonstrated that Arq Powder can be shaped and successfully activated using industrially available equipment, technology, and know-how.

In the U.S, the availability of feedstock for GAC manufacturing is limited as it is either supplied by specialty mined coal or coconut husks which need to be imported.

We believe Arq Powder has the potential to open markets and applications for us, which were previously inaccessible to the lignite-based products made by ADES today.

In addition, the Arq Acquistion enables us to have a fully integrated supply chain in multiple feedstocks - bituminous (Arq) and lignite (through the Five Forks Mine) to produce GAC and PAC.

Arq’s Intellectual Property

Arq has 21 U.S.

and foreign patents issued, with 63 pending patent applications.

Arq’s issued patents and pending patent applications span a variety of products and processes, including:

fuel oil composition containing solid hydrocarbonaceous and carbonaceous particles;

processes for fractionated product from crude oil containing solid hydrocarbonaceous particles;

road asphalt feedstock;

AC feedstock;

anode binder pitch feedstock;

needle coke feedstock;

delayed coker feedstock;

battery graphite feedstock;

purified coal product process;

and process for blending purified coal products with oils, including bio-components.

Arq also enforces its intellectual property across trademark, copyright, and trade secret matters to protect its intellectual property.

Available Information

Our periodic and current reports are filed with the Securities and Exchange Commission ("SEC') pursuant to Section 13(a) of the Securities Exchange Act of 1934, as amended (the "Exchange Act") and are available free of charge within 24 hours after they are filed with, or furnished to, the SEC at the Company’s website at www.advancedemissionssolutions.com.

Our periodic and current reports are filed with the Securities and Exchange Commission (the "SEC") pursuant to Section 13(a) of the Securities Exchange Act of 1934, as amended (the "Exchange Act") and are available free of charge within 24 hours after they are filed with, or furnished to, the SEC at the Company’s website at www.advancedemissionssolutions.com.

The filings are also available through the SEC at the SEC's Public Reference Room at 100 F Street, N.E., Washington, D.C.

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Words or phrases such as "anticipates," "believes," "expects," "intends," "plans," "estimates," "predicts," the negative expressions of such words, or similar expressions are used in this Report to identify forward-looking statements, and such forward-looking statements include, but are not limited to, statements or expectations regarding:

(a) expected growth or contraction in and potential size of our target APT markets, including the water purification, food and beverage and pharmaceuticals markets;

(b) the anticipated effects from the increase in pricing of our APT products;

(d) increasing competition in the APT market;

(e) the timing and effects of our review of strategic alternatives;

(f) future level of research and development activities;

(g) the effectiveness of our technologies and the benefits they provide;

(h) probability of any loss occurring with respect to certain guarantees made by Tinuum Group;

(i) the timing of awards of, and work and related testing under, our contracts and agreements and their value;

(j) the timing and amounts of or changes in future revenues, royalties earned, backlog, funding for our business and projects, margins, expenses, earnings, tax rates, cash flows, royalty payment obligations, working capital, liquidity and other financial and accounting measures;

(k) the amount of future capital expenditures needed for our business;

(l) awards of patents designed to protect our proprietary technologies both in the U.S.

(a) the anticipated effects from an increase in pricing of our AC products;

(b) the anticipated effects from an increase in costs of our AC products and related cost increases in supply and logistics;

(d) increasing competition in the AC market;

(e) the effects of the Arq Acquisition;

(f) the ability to successfully integrate Arq's business;

(g) the ability to develop and utilize Arq’s products and technology;

(h) the ability to make Arq's products commercially viable;

(i) the expected future demand of Arq's products;

(j) future level of research and development activities;

(k) future plant capacity expansions and site development projects;

(l) the effectiveness of our technologies and the benefits they provide;

(m) probability of any loss occurring with respect to certain guarantees made by Tinuum Group;

(n) the timing of awards of, and work and related testing under, our contracts and agreements and their value;

(o) the timing and amounts of or changes in future revenues, backlog, funding for our business and projects, margins, expenses, earnings, tax rates, cash flows, royalty payment obligations, working capital, liquidity and other financial and accounting measures;

(p) the amount of future capital expenditures needed for our business and needed by Arq to fund its business plan;

(q) awards of patents designed to protect our proprietary technologies both in the U.S.

and other countries;

(m) the adoption and scope of regulations to control certain chemicals in drinking water;

(n) opportunities to effectively provide solutions to U.S.

(r) the adoption and scope of regulations to control certain chemicals in drinking water and other environmental concerns;

(s) the impact of adverse global macroeconomic conditions, including rising interest rates, recession fears and inflationary pressures, and geopolitical events or conflicts;

(t) opportunities to effectively provide solutions to U.S.

coal-related businesses to comply with regulations, improve efficiency, lower costs and maintain reliability.

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(c) we will be able to obtain adequate capital and personnel resources to meet our operating needs and to fund anticipated growth and our indemnity obligations;

(d) Cabot will continue to purchase Furnace Products from us under the Supply Agreement in the quantities specified;

(d) Norit will continue to purchase Furnace Products from us under the Supply Agreement in the quantities specified;

(e) we will be able to establish and retain key business relationships with current and other companies;

(f) orders we anticipate receiving will be received;

(g) we will be able to formulate new consumables that will be useful to, and accepted by, the APT markets;

(g) we will be able to formulate new consumables that will be useful to, and accepted by, the markets;

(h) we will be able to effectively compete against others;

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our inability to commercialize our APT technologies on favorable terms;

our inability to ramp up our operations to effectively address recent and expected growth in our APT business;

our inability to ramp up our operations to effectively address recent and expected growth in our business;

loss of key personnel;

availability of materials and equipment for our businesses;

availability of materials and equipment for our business;

intellectual property infringement claims from third parties;

pending litigation;

as well as other factors relating to our business, as described in our filings with the SEC, with particular emphasis on the risk factor disclosures contained in those filings and in Item 1A - "Risk Factors" of this Report.

as well as other factors relating to our business strategy, goals and expectations concerning the Arq Acquisition (including future operations, future performance or results);

the effect of the Arq Acquisition on our ability to hire key personnel;

our ability to maintain relationships with customers, suppliers and other with whom we do business, or our results of operations and business generally;

risks related to diverting management's attention from our ongoing business operations;

the ability to meet Nasdaq's listing standards following the consummation of the Arq Acquisition;

costs related to the Arq Acquisition;

opportunities for additional sales of our lignite AC products and end-market diversification;

our ability to meet customer supply requirements;

the rate of coal-fired power generation in the U.S., as described in our filings with the SEC, with particular emphasis on the risk factor disclosures contained in those filings.

You are cautioned not to place undue reliance on the forward-looking statements made in this Report and to consult filings we have made and will make with the SEC for additional discussion concerning risks and uncertainties that may apply to our business and the ownership of our securities.

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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 1. Business