# EDGAR Filing Document

**Accession Number:** 0001793895
**File Stem:** 0001731122-25-001714
**Filing Date:** 2025-12
**Character Count:** 36920
**Document Hash:** d9341d71c11c0897c93b8b1446e74014
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001731122-25-001714.hdr.sgml**: 20251223

**ACCESSION NUMBER**: 0001731122-25-001714

**CONFORMED SUBMISSION TYPE**: 6-K

**PUBLIC DOCUMENT COUNT**: 6

**CONFORMED PERIOD OF REPORT**: 20251223

**FILED AS OF DATE**: 20251223

**DATE AS OF CHANGE**: 20251223

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** CDT Environmental Technology Investment Holdings Ltd
- **CENTRAL INDEX KEY:** 0001793895
- **STANDARD INDUSTRIAL CLASSIFICATION:** SANITARY SERVICES [4950]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 000000000
- **STATE OF INCORPORATION:** E9
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 6-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-42007
- **FILM NUMBER:** 251595452

**BUSINESS ADDRESS:**
- **STREET 1:** C1, 4TH FLOOR, BUILDING 1,
- **STREET 2:** FINANCIAL BASE, NO.8 KEFA ROAD
- **CITY:** NANSHAN DISTRICT
- **STATE:** F4
- **ZIP:** 518057
- **BUSINESS PHONE:** 86-0755-86667922

**MAIL ADDRESS:**
- **STREET 1:** C1, 4TH FLOOR, BUILDING 1,
- **STREET 2:** FINANCIAL BASE, NO.8 KEFA ROAD
- **CITY:** NANSHAN DISTRICT
- **STATE:** F4
- **ZIP:** 518057

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** CDT Enviromental Technology Investment Holdings Ltd
- **DATE OF NAME CHANGE:** 20191113

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**FORM 6-K**

**REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16** 

**UNDER THE SECURITIES EXCHANGE ACT OF 1934**

**For the month of December, 2025**

**Commission File Number 001-42007**

**CDT Environmental Technology Investment Holdings Limited**

(Translation of registrant's name into English)

**C1, 4th Floor, Building 1, Financial Base, No. 8 Kefa Road**

**Nanshan District, Shenzhen, China 518057**

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F. Form 20-F ☒ Form 40-F ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): ☐

**Note:** Regulation S-T Rule 101(b)(1) only permits the submission in paper of a Form 6-K if submitted solely to provide an attached annual report to security holders.

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): ☐

**Note:** Regulation S-T Rule 101(b)(7) only permits the submission in paper of a Form 6-K if submitted to furnish a report or other document that the registrant foreign private issuer must furnish and make public under the laws of the jurisdiction in which the registrant is incorporated, domiciled or legally organized (the registrant's "home country"), or under the rules of the home country exchange on which the registrant's securities are traded, as long as the report or other document is not a press release, is not required to be and has not been distributed to the registrant's security holders, and, if discussing a material event, has already been the subject of a Form 6-K submission or other Commission filing on EDGAR

On June 20, 2025 and November 20, 2025, the Company issued press releases, copies of which are attached hereto as Exhibits 99.1 and 99.2, respectively, and are incorporated herein by reference.

On December 23, 2025, the Company issued a press release announcing its unaudited interim financial results for the first half of 2025, a copy of which is attached hereto as Exhibit 99.3 and is incorporated herein by reference.

---

| | |
|:---|:---|
| **Exhibit No.** | **Description of Exhibit** |
| 99.1 | [Press Release, dated June 20, 2025](e7154_ex99-1.htm) |
| 99.2 | [Press Release, dated November 20, 2025](e7154_ex99-2.htm) |
| 99.3 | [Press Release, dated December 23, 2025](e7154_ex99-3.htm) |

---

 **SIGNATURES**

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: December 23, 2025

---

| | |
|:---|:---|
| **CDT Environmental Technology Investment Holdings Limited** | **CDT Environmental Technology Investment Holdings Limited** |
| By: | /s/ Yunwu Li |
|  | Name: Yunwu Li |
|  | Title: Chief Executive Officer and <br> Chairman of the Board of Directors |

---

## Exhibit 99.1

**EXHIBIT 99.1**

**CDT Environmental Technology Announces Receipt of Notification Letter from Nasdaq**

SHENZHEN, China – June 20, 2025 – CDT Environmental Technology Investment Holdings Limited (NASDAQ:CDTG) ("CDT" or the "Company"), a leading provider of waste treatment systems and services throughout China, today announced that it received a notification letter, dated June 18, 2025 (the "Notification Letter"), from the Listing Qualifications Department of The Nasdaq Stock Market Inc. ("Nasdaq") indicating that the Company is no longer in compliance with the minimum bid price requirement set forth in Nasdaq Listing Rule 5550(a)(2) as the Company's closing bid price per ordinary share, par value US$0.0025 per share, was below US$1.00 for a period of 30 consecutive business days. The Notification Letter does not result in the immediate delisting of the Company's securities.

The Company would like to clarify that the Notification Letter has no current effect on the listing or trading of the Company's securities on Nasdaq. Pursuant to Nasdaq Listing Rule 5810(c)(3)(A), the Company has an initial compliance period of 180 calendar days, or until December 15, 2025 (the "Compliance Period"), to regain compliance with the minimum bid price requirement. If at any time during the Compliance Period the closing bid price per ordinary share is at least US$1.00 for a minimum of 10 consecutive business days, Nasdaq will provide the Company a written confirmation of compliance and the matter will be closed.

In the event that the Company does not regain compliance by December 15, 2025, subject to the determination by the staff of Nasdaq, it may be eligible for an additional 180 calendar days compliance period if it meets the continued listing requirement for market value of publicly held shares and all other initial listing standards, with the exception of the bid price requirement, and provides written notice to Nasdaq of its intention to cure for the minimum bid price requirement.

The Company intends to monitor the closing bid price of its ordinary shares between now and December 15, 2025, and is considering its options to regain compliance with the minimum bid price requirement under the Nasdaq Listing Rules. The Company is currently in compliance with all other applicable Nasdaq continued listing standards. The Notification Letter does not affect the Company's business operations, its U.S. Securities and Exchange Commission reporting requirements or contractual obligations.

**Safe Harbor Statements**

This press release includes "forward-looking statements" within the meaning of the "safe harbor" provisions of the United States Private Securities Litigation Reform Act of 1995. Forward-looking statements may be identified by the use of words such as "estimate," "plan," "project," "forecast," "intend," "will," "expect," "anticipate," "believe," "seek," "target" or other similar expressions that predict or indicate future events or trends or that are not statements of historical matters. These forward-looking statements also include, but are not limited to, statements regarding existing and new partnerships and customer relationships, projections, estimation, and forecasts of revenue and other financial and performance metrics, projections of market opportunity and expectations, the Company's ability to scale and grow its business, the Company's advantages and expected growth, and its ability to source and retain talent, as applicable. These statements are based on various assumptions, whether or not identified in this press release, and on the current expectations of the Company's management and are not predictions of actual performance. These statements involve risks, uncertainties, and other factors that may cause the Company's actual results, levels of activity, performance, or achievements to materially differ from those expressed or implied by these forward-looking statements. Further information regarding these and other risks, uncertainties, or factors is included in the Company's filings with the U.S. Securities and Exchange Commission. Although the Company believes that it has a reasonable basis for each forward-looking statement contained in this press release, the Company cautions you that these statements are based on a combination of facts and factors currently known and projections of the future, which are inherently uncertain. The forward-looking statements in this press release represent the views of the Company as of the date of this press release. Subsequent events and developments may cause those views to change. Except as may be required by law, the Company does not undertake any duty to update these forward-looking statements.

**About CDT Environmental Technology Investment Holdings Limited**

CDT, headquartered in Shenzhen, China, is a leading national player in China's waste treatment sector that designs, develops, manufactures, sells, installs, operates and maintains sewage treatment systems and provides sewage treatment services in China, and is dedicated to promoting sustainable development through innovative solutions. Founded by pioneers in waste treatment, CDT aims to advance next-generation technologies that directly address environmental challenges and promote sustainable solutions. CDT is a recognized brand in China and is committed to innovation and customer satisfaction.

CDT's mission is to help its customers achieve their critical infrastructure objectives while enabling positive changes in technological environmental protection. It collaborates with industry leaders, environmental experts, and stakeholders to develop and implement advanced waste treatment solutions. Recently listed on the Nasdaq Capital Market, CDT is a prominent player in the waste treatment market, capable of providing comprehensive solutions to diverse customer needs, and has completed more than 150 plants across China.

For more information, visit CDT's website at https://www.cdthb.cn

**Investor and Media Contact<br> United States**

TraDigital IR

Kevin McGrath

+1-646-418-7002

kevin@tradigitalir.com

## Exhibit 99.2

**EXHIBIT 99.2**

![A close-up of a blue circle with a globe and text Description automatically generated](image_002.jpg)

**CDT Environmental Technology Announces New Strategic Growth Initiatives, Enters Clean Energy Market with Waste-to-Hydrogen Technology**

 

*Company leverages collaboration with Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, to convert urban and rural organic waste into green hydrogen*

**Shenzhen, China, November 20, 2025** -- CDT Environmental Technology Investment Holding Co., Ltd. (NASDAQ: CDTG, the "Company" or "CDT"), an environmental company focused on urban and rural organic waste treatment, today announced a new strategic growth initiative with its official entry into the green hydrogen sector. The Company, building upon its initial R&D investments and collaborations with leading scientific organizations and government regulatory bodies, is positioning itself to become a "provider of urban and rural organic waste resource utilization solutions and clean energy."

CDT's strategic plan is anchored in four core ambitions: to strengthen the Company's relationship with strong academic and industry partners, along with the relevant regulatory agencies, to enhance its opportunity for success in the rapidly growing industry of hydrogen energy; to commercialize operations of organic solid waste-to-hydrogen production facilities in China; to maintain the Company's leadership in safety, sustainability and innovation; and, to drive long-term value creation.

**Strategic Growth Initiative and Background**

CDT's new strategic growth initiative aims to address the enormous demand for resource utilization of urban and rural organic waste in China. According to a January 2025 report from the Ministry of Agriculture and Rural Affairs, China generates over 3.9 billion tons of crop straw and livestock manure annually. The National Development and Reform Commission projects that municipal sludge production will exceed 100 million tons in 2025. Meanwhile, China's hydrogen energy industry is developing rapidly, with industry analysis indicating the sector reached several hundred billion RMB (USD 40+ billion) in scale in 2024. The Company's strategic upgrade seeks to establish commercial connections between the rigid demand for waste treatment and opportunities in the green hydrogen market.

"This strategic upgrade is a natural extension of our years of accumulated expertise in the environmental sector," said Mr. Li Yunwu, Chief Executive Officer of the Company. "We see an opportunity to combine environmental governance with clean energy. Through technological innovation, we hope to provide our clients with solutions that deliver both environmental and economic value."

**Technology Collaboration and R&D Foundation**

To support the development of its new business, the Company has begun establishing core technical capabilities. In May 2025, the Company appointed a senior expert from the Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, as Chief Scientist, establishing a technical collaboration relationship. The Company employs high-temperature gasification technology that can convert organic waste into syngas—primarily composed of hydrogen and carbon monoxide—in an oxygen-deficient environment at temperatures of 700-900°C.

Additionally, a subsidiary of the Company participated in drafting the group standard "Technical Requirements for Waste-to-Hydrogen Based on High-Temperature Pyrolysis and Gasification," led by the Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences. This standard was published and implemented by the China Association for Testing and Inspection in January 2025. The Company believes these collaborations will contribute to the continuous optimization of its technical approach.

**Drive Diversified Revenue Sources Through New Business Model** 

The Company plans to adopt an "EPC engineering + long-term operation" business model. In project operations, the core focus is on resource utilization of syngas to create diversified revenue sources:

&nbsp;&nbsp;&nbsp;&nbsp;1. **Hydrogen Production Pathway**: After purification through Pressure Swing Adsorption (PSA), syngas
can produce high-purity hydrogen meeting requirements for industrial or fuel cell applications.

&nbsp;&nbsp;&nbsp;&nbsp;2. **Heat Supply Pathway**: Syngas can also be directly combusted to supply clean industrial steam to
surrounding industrial parks.

&nbsp;&nbsp;&nbsp;&nbsp;3. **Synergistic Benefits**: Residual syngas after hydrogen extraction can be used for grid-connected
power generation, achieving cascading energy utilization.

Throughout this process, the Company also collects waste treatment service fees from waste generators. The Company believes this model has the potential to transform traditional environmental expenditure into a composite revenue structure of "treatment fees + energy product sales."

Mr. Li added: "The distinctive feature of our technical solution is that it provides multiple potential commercialization pathways for the same syngas stream—whether purified into green hydrogen or converted into steam or electricity. This flexibility enables us to optimize project configurations based on different regional market conditions and customer needs. We are currently conducting project evaluation and filing work and look forward to reporting progress to the market at the appropriate time."

**About CDT Environmental Technology Investment Holdings Limited**

CDT, headquartered in Shenzhen, China, is a leading national player in China's waste treatment sector that designs, develops, manufactures, sells, installs, operates and maintains sewage treatment systems and provides sewage treatment services in China, and is dedicated to promoting sustainable development through innovative solutions. Founded by pioneers in waste treatment, CDT aims to advance next-generation technologies that directly address environmental challenges and promote sustainable solutions. CDT is a recognized brand in China and is committed to innovation and customer satisfaction.

CDT's mission is to help its customers achieve their critical infrastructure objectives while enabling positive changes in technological environmental protection. It collaborates with industry leaders, environmental experts, and stakeholders to develop and implement advanced waste treatment solutions. Recently listed on the Nasdaq Capital Market, CDT is a prominent player in the waste treatment market, capable of providing comprehensive solutions to diverse customer needs, and has completed more than 150 plants across China.

For more information, please visit CDT's website at https://www.cdthb.cn.

**Forward-looking Statements**

This press release contains forward-looking statements that are based on the beliefs and assumptions of the management of CDT and on information currently available to such management. These forward-looking statements are subject to numerous risks and uncertainties, many of which are beyond CDT's control. When the Company uses words such as "may," "should," "will," "future," "expect," "anticipate," "project," "estimate," "believe," and "intend," or similar expressions that do not relate solely to historical matters, it is intended to identify forward-looking statements. All statements, other than statements of historical fact, contained in this press release, including statements regarding future events, future financial performance, business strategy and plans, and objectives of CDT for future operations, are forward-looking statements. Although CDT does not make forward-looking statements unless it believes it has a reasonable basis for doing so, CDT cannot guarantee their accuracy. These statements are only predictions and involve known and unknown risks, uncertainties and other factors, which may cause the actual results, levels of activity, performance or achievements of CDT and its markets to be materially different from any future results, levels of activity, performance or achievements expressed or implied by these forward-looking statements. For these reasons, among others, investors should not place undue reliance on any forward-looking statement. CDT undertakes no obligation to publicly update or revise any forward-looking statements to reflect events or circumstances that arise after the date hereof, whether as a result of new information, future events or otherwise, except as may be required by applicable law.

For more information, please contact:

**Investor and Media Contact<br> United States**

PCG Advisory<br> Kevin McGrath<br> Tel: +1-646-418-7002<br> Email: kevin@pcgadvisory.com

## Exhibit 99.3

**EXHIBIT 99.3**

![A close-up of a blue circle with a globe and text Description automatically generated](image_001.jpg)

**CDT Environmental Technology Reports 2025 Unaudited Interim Financial Results and Provides Business Updates**

Revenue of $7.3 million and loss per share of $0.11 impacted by reduced project activity due to a slowdown in the PRC economy

SHENZHEN, China, December 23, 2025 (GLOBE NEWSWIRE) -- CDT Environmental Technology Investment Holdings Limited (Nasdaq: CDTG) ("CDT", the "Company", or "we"), a leading provider of waste treatment systems and services throughout China, today reports its unaudited interim financial results for the six months ended June 30, 2025, and provides updates on key business developments.

All amounts are expressed in US dollars unless otherwise stated.

**2025 Unaudited Interim Financial Results and Business Update**

● Revenues decreased by approximately $5.4 million, or 42.3%, to approximately $7.3 million for the six months ended June 30, 2025, from approximately $12.7 million for the same period in 2024. The decline was driven by three factors:

<br> (i) reduced external demand for the Company's traditional environmental engineering services amid the PRC economic slowdown; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii) the Company's deliberate strategic shift to scale back on legacy projects with excessively long receivable cycles, reallocating resources toward its new green hydrogen and organic waste-to-energy initiatives.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iii) decrease in the number and timing of project revenue recognitions, as six project contracts contributed revenue during the comparable prior-year period, whereas only four projects contributed revenue during the current period, with certain remaining projects not yet meeting revenue recognition criteria. Among the four projects recognized in the current period, except for the Guankou project phase 6, the other three projects had reached over 95% completion and were in their final stages, resulting in limited incremental revenue recognized during the period.

● Gross profit decreased by approximately $1.6 million, or 35.1%, to approximately $2.9 million for the six months ended June 30, 2025 from approximately $4.5 million for the six months ended June 30, 2024. The decrease in gross profit is primarily due to a decrease in sewage treatment systems revenue. For the six months ended June 30, 2025 and 2024, our overall gross profit percentage was 39.9% and 35.5%, respectively. The increase in gross profit percentage of 4.4% was primarily due to the following:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i) The approximately 4.8% increase in the gross profit margin of sewage treatment systems was primarily attributable to the Company's
engagement in a new project that generated approximately $3.1 million in revenue with a relatively higher gross profit margin of 40.3%.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii) This increase was partially offset by a 4.7% decrease in the gross profit margin of sewage treatment services and other revenue, primarily
due to higher labor and material costs.

● Total operating expenses increased by approximately $1.4 million, or 51.9%, to approximately $4.1 million for the six months ended June 30, 2025, from approximately $2.7 million for the same period in 2024.

● The Company reported a net loss of approximately $1.3 million, or $0.11 per share, for the six months ended June 30, 2025, compared to net income of $1.4 million, or $0.14 per share, for the same period in 2024. The swing from profit to loss was primarily due to:<br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i) lower revenue from reduced project activity amid weakened market demand; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii) the recognition of $2.1 million in non-cash stock-based compensation expense related to the Company's 2025 Equity Incentive Plan, under which shares were granted to key employees and advisors and accounted for as compensation in accordance with ASC 718.

**Business Update** 

As of June 30, 2025, the Company had three projects in backlog:

● the Sichuan Anya Project,

● the Xinjiang Project, and

● Phase VI of the Guankou Project.

Both the Sichuan Anya and Xinjiang Projects were signed and commenced in August 2024. Phase VI of the Guankou Project is a supplemental agreement to the existing Guankou Project, which was signed and commenced in April 2024, and represents an incremental scope under the original contract—it does not constitute a new, standalone project. The combined tentative contract value of these three projects is approximately $19.6 million.

**Green Hydrogen Initiative**

● **Strategic move into green hydrogen:** As announced on November 20, 2025, the Company initiated a new growth opportunity with its shift to become a provider of urban and rural organic waste resource utilization solutions and clean energy.

● **Technology and partnerships:** The Company's plan is to utilize high-temperature gasification technology to convert organic waste into syngas, which can then be purified to produce hydrogen. In May 2025, the Company appointed a senior expert from the Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, as Chief Scientist for the Company's new energy initiative, establishing a technical collaboration with the Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences.

● **Addressing market demand:** The initiative aims to capitalize on the significant demand for organic waste treatment in China and the rapidly growing hydrogen energy market.

● **Diversified revenue streams:** The Company's new "EPC engineering + long-term operation" business model includes revenue from waste treatment fees as well as expected future sales of energy products like green hydrogen, clean industrial steam, and grid-connected electricity.

**Li Yunwu, CEO of CDT, said** "Our first half 2025 performance was challenging as we continued to experience economic headwinds in the PRC market that have impacted new infrastructure projects and delayed some that are in the pipeline. Despite these challenges and the resulting volume pressure, we achieved 250 basis points of gross profit margin expansion compared to the same period last year through the restructuring initiatives we undertook in 2024 and other cost-saving measures. As economic conditions in China stabilize, we believe we remain well positioned to capitalize on opportunities associated with favorable, long-term secular trends including water conservation, safety and regulation.

Mr. Li added, "Even as we face an unpredictable operating environment in the near-term with soft end market demand, we are taking proactive and strategically targeted steps to leverage our core operational capabilities through technological innovation and partnerships. Our recently announced strategic initiative to support the growth of the hydrogen economy is an integral part of our planned transformation and broader strategy to participate in new energy by commercializing operations of organic solid waste-to-hydrogen production facilities in China. We believe our collaborations with leading scientific organizations and government regulatory bodies have created a foundation for the Company to accelerate the transition to a hydrogen economy. We expect to report several milestones related to our green hydrogen initiative including advancements in the Company's hydrogen enabling technologies, as well as progress in executing several customers' hydrogen projects and new partnerships in the sector.

We believe the actions we have taken to streamline our operations, along with our planned long-term investments in our new energy growth initiatives, are expected to deliver value to customers and improve returns for shareholders."

**About CDT Environmental Technology Investment Holdings Limited**

CDT, headquartered in Shenzhen, China, is a leading national player in China's waste treatment sector that designs, develops, manufactures, sells, installs, operates and maintains sewage treatment systems and provides sewage treatment services in China, and is dedicated to promoting sustainable development through innovative solutions. Founded by pioneers in waste treatment, CDT aims to advance next-generation technologies that directly address environmental challenges and promote sustainable solutions. CDT is a recognized brand in China and is committed to innovation and customer satisfaction.

CDT's mission is to help its customers achieve their critical infrastructure objectives while enabling positive changes in technological environmental protection. It collaborates with industry leaders, environmental experts, and stakeholders to develop and implement advanced waste treatment solutions. Recently listed on the Nasdaq Capital Market, CDT is a prominent player in the waste treatment market, capable of providing comprehensive solutions to diverse customer needs, and has completed more than 150 plants across China.

For more information, please visit CDT's website at https://www.cdthb.cn.

**Forward Looking Statements**

This press release contains forward-looking statements that are based on the beliefs and assumptions of the management of CDT and on information currently available to such management. These forward-looking statements are subject to numerous risks and uncertainties, many of which are beyond CDT's control. When the Company uses words such as "may," "should," "will," "future," "expect," "anticipate," "project," "estimate," "believe," and "intend," or similar expressions that do not relate solely to historical matters, it is intended to identify forward-looking statements. All statements, other than statements of historical fact, contained in this press release, including statements regarding future events, future financial performance, business strategy and plans, and objectives of CDT for future operations, are forward-looking statements. Although CDT does not make forward-looking statements unless it believes it has a reasonable basis for doing so, CDT cannot guarantee their accuracy. These statements are only predictions and involve known and unknown risks, uncertainties and other factors, which may cause the actual results, levels of activity, performance or achievements of CDT and its markets to be materially different from any future results, levels of activity, performance or achievements expressed or implied by these forward-looking statements. Further information regarding these and other risks, uncertainties, or factors is included in the Company's filings with the U.S. Securities and Exchange Commission. For these reasons, among others, investors should not place undue reliance on any forward-looking statement. CDT undertakes no obligation to publicly update or revise any forward-looking statements to reflect events or circumstances that arise after the date hereof, whether as a result of new information, future events or otherwise, except as may be required by applicable law.

For more information, please contact:

**Investor and Media Contact<br> United States**

PCG Advisory<br> Kevin McGrath<br> Tel: +1-646-418-7002<br> Email: kevin@pcgadvisory.com

CDT ENVIRONMENTAL TECHNOLOGY INVESTMENT HOLDINGS LIMITED AND SUBSIDIARIES <br>UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS

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| | | |
|:---|:---|:---|
|  | June 30,<br>2025 | December 31,<br>2024 |
| &nbsp;&nbsp;&nbsp;ASSETS |  |  |
| CURRENT ASSETS |  |  |
| &nbsp;&nbsp;&nbsp;Cash | $175877 | $124379 |
| &nbsp;&nbsp;&nbsp;Accounts receivable, net | 65238735 | 45188231 |
| &nbsp;&nbsp;&nbsp;Other receivables, net | 239560 | 424313 |
| &nbsp;&nbsp;&nbsp;Other receivables - related parties | 135920 | 123532 |
| &nbsp;&nbsp;&nbsp;Contract assets | 31126553 | 31438860 |
| &nbsp;&nbsp;&nbsp;Prepayments and other current assets, net | 488969 | 405136 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total current assets | 97405614 | 77704451 |
| OTHER ASSETS |  |  |
| &nbsp;&nbsp;&nbsp;Property and equipment, net | 1182693 | 1291322 |
| &nbsp;&nbsp;&nbsp;Intangible assets, net | 715 | 5628 |
| &nbsp;&nbsp;&nbsp;Deferred tax assets, net | 1305492 | 1208689 |
| &nbsp;&nbsp;&nbsp;Contract assets, noncurrent | 8525057 | 8550498 |
| &nbsp;&nbsp;&nbsp;Escrow | 600000 | 600000 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total other assets | 11613957 | 11656137 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total assets | $109019571 | $89360588 |
| &nbsp;&nbsp;&nbsp;LIABILITIES AND SHAREHOLDERS' EQUITY |  |  |
| CURRENT LIABILITIES |  |  |
| &nbsp;&nbsp;&nbsp;Accounts payable | $40192963 | $36347893 |
| &nbsp;&nbsp;&nbsp;Short-term loans - banks | 1321665 | 1814551 |
| &nbsp;&nbsp;&nbsp;Short-term loans - third parties | 840388 | 836765 |
| &nbsp;&nbsp;&nbsp;Short-term loans - related parties | 3183506 | 2794894 |
| &nbsp;&nbsp;&nbsp;Other payables and accrued liabilities | 2948482 | 2220896 |
| &nbsp;&nbsp;&nbsp;Other payables - related party | 254173 | 256863 |
| &nbsp;&nbsp;&nbsp;Contract liabilities | 13691295 | 28026 |
| &nbsp;&nbsp;&nbsp;Taxes payable | 7878159 | 7408674 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total current liabilities | 70310631 | 51708562 |
| OTHER LIABILITIES |  |  |
| &nbsp;&nbsp;&nbsp;Long-term loan - bank | 279384 | 213969 |
| &nbsp;&nbsp;&nbsp;Total other liabilities | 279384 | 213969 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total liabilities | 70590015 | 51922531 |
| COMMITMENTS AND CONTINGENCIES |  |  |
| SHAREHOLDERS' EQUITY |  |  |
| Ordinary shares, $0.0025 par value, 20,000,000 shares authorized, 10,825,000 and 9,200,000 shares |  |  |
| &nbsp;&nbsp;&nbsp;issued and outstanding as of December 31, 2024 and 2023, respectively | 30813 | 27063 |
| &nbsp;&nbsp;&nbsp;Additional paid-in capital | 13719883 | 11578633 |
| &nbsp;&nbsp;&nbsp;Statutory reserves | 3667369 | 3433589 |
| &nbsp;&nbsp;&nbsp;Retained earnings | 22959457 | 24455403 |
| &nbsp;&nbsp;&nbsp;Accumulated other comprehensive loss | (2089346) | (2210909) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total CDT Environmental Technology Investment Holdings Limited shareholders' equity | 38288176 | 37283779 |
| &nbsp;&nbsp;&nbsp;Noncontrolling interests | 141380 | 154278 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total shareholders' equity | 38429556 | 37438057 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total liabilities and shareholders' equity | $109019571 | $89360588 |

---

&nbsp;&nbsp;The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

CDT ENVIRONMENTAL TECHNOLOGY INVESTMENT HOLDINGS LIMITED AND SUBSIDIARIES <br>UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME

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| | | |
|:---|:---|:---|
|  | For the Six Months Ended | For the Six Months Ended |
|  | June 30, | June 30, |
|  | 2025 | 2024 |
| REVENUES |  |  |
| &nbsp;&nbsp;&nbsp;Sewage treatment systems | $6762644 | $12066255 |
| &nbsp;&nbsp;&nbsp;Sewage treatment services and others | 556579 | 620453 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total revenues | 7319223 | 12686708 |
| COST OF REVENUES |  |  |
| &nbsp;&nbsp;&nbsp;Sewage treatment systems | 4088886 | 7869468 |
| &nbsp;&nbsp;&nbsp;Sewage treatment services and others | 308864 | 315405 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total cost of revenues | 4397750 | 8184873 |
| GROSS PROFIT | 2921473 | 4501835 |
| OPERATING EXPENSES: |  |  |
| &nbsp;&nbsp;&nbsp;Selling | 102096 | 25725 |
| &nbsp;&nbsp;&nbsp;General and administrative | 1191360 | 1361481 |
| &nbsp;&nbsp;&nbsp;Research and development | 31918 | 34706 |
| &nbsp;&nbsp;&nbsp;Stock-based compensation | 2145000 | 454250 |
| &nbsp;&nbsp;&nbsp;Provision for (Recovery from) credit loss, net | 588484 | 795757 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total operating expenses | 4058858 | 2671919 |
| INCOME FROM OPERATIONS | (1137385) | 1829916 |
| OTHER INCOME (EXPENSE) |  |  |
| &nbsp;&nbsp;&nbsp;Interest income | (6814) | 138 |
| &nbsp;&nbsp;&nbsp;Interest expense | (39200) | (69446) |
| &nbsp;&nbsp;&nbsp;Other (expense) income, net | 89556 | 58212 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total other (expense) income, net | 43542 | (11096) |
| INCOME BEFORE INCOME TAXES | (1093843) | 1818820 |
| INCOME TAXES EXPENSE | 214668 | 401401 |
| NET (LOSS) INCOME | (1308511) | 1417419 |
| Less: net loss attributable to noncontrolling interest | (46345) | (51609) |
| NET (LOSS) INCOME ATTRIBUTABLE TO |  |  |
| &nbsp;&nbsp;&nbsp;CDT ENVIRONMENTAL TECHNOLOGY INVESTMENT HOLDINGS LIMITED | $(1262166) | $1469028 |
| NET(LOSS) INCOME | (1308511) | 1417419 |
| FOREIGN CURRENCY TRANSLATION ADJUSTMENT | 122198 | (249654) |
| TOTAL COMPREHENSIVE (LOSS) INCOME | (1186313) | 1167765 |
| Less: Comprehensive loss attributable to noncontrolling interest | (45710) | (54451) |
| COMPREHENSIVE (LOSS) INCOME ATTRIBUTABLE TO |  |  |
| &nbsp;&nbsp;&nbsp;CDT ENVIRONMENTAL TECHNOLOGY INVESTMENT HOLDINGS LIMITED | $(1140603) | $1222216 |
| WEIGHTED AVERAGE NUMBER OF ORDINARY SHARES |  |  |
| &nbsp;&nbsp;&nbsp;Basic and diluted | 11910635 | 9810714 |
| EARNINGS PER SHARE |  |  |
| &nbsp;&nbsp;&nbsp;Basic and diluted | $(0.11) | $0.15 |

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&nbsp;&nbsp;The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.