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Credit facilities (Tables)

12 Months Ended

Dec. 31, 2024

Debt Disclosure [Abstract]

Schedule of short-term bank loans

Schedule of short-term bank loans
Bank Name		Maturities				Interest Rate				Collateral/ Guarantee		December 31, 2024				December 31, 2023
China Bank of Communication(1)			January 2025 (repaid in January 2025)				4.4	%		Guaranteed by Yunwu Li, Chief Executive Officer and Chairman of the Board of Directors of the Company, and the line of credit is collateralized by a real estate property owned by Yunwu Li.			417,339				—
China Bank of Communication(1)			August 2024				4.9-5	%		Guaranteed by Yunwu Li, Chief Executive Officer and Chairman of the Board of Directors of the Company, and the line of credit is collateralized by a real estate property owned by Yunwu Li.			—				423,567
China Bank of Communication(1)			January 2025 (extended to November 2026)				4.4	%		Guaranteed by Yunwu Li, Chief Executive Officer and Chairman of the Board of Directors of the Company, and the line of credit is collateralized by a real estate property owned by Yunwu Li.			695,565				—
China Bank of Communication(1)			January 2024 (extended to December 2024)				4.6	%		Guaranteed by Yunwu Li, Chief Executive Officer and Chairman of the Board of Directors of the Company, and the line of credit is collateralized by a real estate property owned by Yunwu Li.			—				705,945
Postal saving bank of China (2)			June 2024				5.7	%		Guaranteed by Yunwu Li, Chief Executive Officer and Chairman of the Board of Directors of the Company and Chairman of the Board of Directors and General Manager of Shenzhen CDT Environmental Technology Co., Ltd.			—				564,756
Zhejiang Hecheng Rural Commercial Bank Co.，Ltd (3)			August 2025				12.4	%		Guaranteed by Yunwu Li, Chief Executive Officer and Chairman of the Board of Directors of the Company and Chairman of the Board of Directors and General Manager of Shenzhen CDT Environmental Technology Co., Ltd.			166,936				—
China resource bank			March 2024				5.8	%		Guaranteed by Yunwu Li, Chief Executive Officer and Chairman of the Board of Directors of the Company and Chairman of the Board of Directors and General Manager of Shenzhen CDT Environmental Technology Co., Ltd.			—				412,272
Bank of China (4)			November 2025				3.6-.3.9	%		Guaranteed by Yunwu Li, Chief Executive Officer and Chairman of the Board of Directors of the Company and Chairman of the Board of Directors and General Manager of Shenzhen CDT Environmental Technology Co., Ltd			317,178				—
Bank of China (4)			November 2024				3.9	%		Guaranteed by Yunwu Li, Chief Executive Officer and Chairman of the Board of Directors of the Company and Chairman of the Board of Directors and General Manager of Shenzhen CDT Environmental Technology Co., Ltd			—				415,096
China Construction Bank			December 2024				4.0	%		Guaranteed by Chun’E Zhao, the legal representative of Guangxi CWT Environmental Technology Co., Ltd.			—				52,240
Weizhong Bank			August 2025				5.9	%		Guaranteed by Yunwu Li, Chief Executive Officer and Chairman of the Board of Directors of the Company and Chairman of the Board of Directors and General Manager of Shenzhen CDT Environmental Technology Co., Ltd.			132,489				—
Weizhong Bank			February 2025				6.1-9.7	%		Guaranteed by Yunwu Li, Chief Executive Officer and Chairman of the Board of Directors of the Company and Chairman of the Board of Directors and General Manager of Shenzhen CDT Environmental Technology Co., Ltd.			—				154,509
Weizhong Bank			November 2025				6.1	%		Guaranteed by Yunwu Li, Chief Executive Officer and Chairman of the Board of Directors of the Company and Chairman of the Board of Directors and General Manager of Shenzhen CDT Environmental Technology Co., Ltd.			68,011				—
Weizhong			February 2025 (repaid in February 2025)				6.1	%		Guaranteed by Yunwu Li, Chief Executive Officer and Chairman of the Board of Directors of the Company and Chairman of the Board of Directors and General   Manager of Shenzhen CDT Environmental Technology Co., Ltd.			3,784				—
Weizhong			February 2025 (repaid in February 2025)				6.1	%		Guaranteed by Yunwu Li, Chief Executive Officer and Chairman of the Board of Directors of the Company and Chairman of the Board of Directors and General   Manager of Shenzhen CDT Environmental Technology Co., Ltd.			13,249				—
Total												$	1,814,551			$	2,728,385

(1) In August 2022, the Company secured a renewable line of credit (“Line of Credit 1”) worth approximately $1.1 million from China Bank of Communication for a two-year period. This line of credit is backed by the guarantee of Yunwu Li, the Chief Executive Officer and Chairman of the Board of Directors of the Company, and it is secured by a real estate property owned by Yunwu Li. On January 2, 2024, the Line of Credit 1 was extended to July 14, 2024 and further extended to November 18, 2026.

(2) In June 2023, the Company secured a renewable line of credit (“Line of Credit 2”) worth approximately $0.6 million from Postal Savings Bank of China for a two-year term. This line of credit is guaranteed by Yunwu Li, the Chief Executive Officer and Chairman of the Board of Directors of the Company. Simultaneously, on the same date, the Company withdrew approximately $0.6 million from Line of Credit 2, which carries an interest rate of 5.7%. In June 2024, the Company has fully repaid the loan under Line of Credit 2.

(3) On August 30, 2024, the Company entered into a loan agreement with Zhejiang Hecheng Rural Commercial Bank Co Ltd, for approximately $0.2 million. The loan is guaranteed by Yunwu Li, the Chief Executive Officer and Chairman of the Board of Directors of the Company to be due in August 2025 with 4.25% interest rate per annum.

Schedule of long-term loans- bank

Schedule of long-term loans- bank
Bank Name		Maturities				Interest Rate				Collateral/Guarantee		December 31, 2024				December 31, 2023
Weizhong Bank			July 2023 (renewal to February 2025)				6.1-9.7	%		Guaranteed by Yunwu Li, Chief Executive Officer and Chairman of the Board of Directors of the Company and Chairman of the Board of Directors and General Manager of Shenzhen CDT Environmental Technology Co., Ltd.		$	—			$	79,463
Sichuan Xinwang Bank Co., Ltd			May 2026				6.1	%		Guaranteed by Yunwu Li, Chief Executive Officer and Chairman of the Board of Directors of the Company and Chairman of the Board of Directors and General Manager of Shenzhen CDT Environmental Technology Co., Ltd.			115,927				—
Weizhong Bank			January 2026				6.1	%		Guaranteed by Yunwu Li, Chief Executive Officer and Chairman of the Board of Directors of the Company and Chairman of the Board of Directors and General Manager of Shenzhen CDT Environmental Technology Co., Ltd.			8,612				—
Weizhong Bank			March 2026				6.1	%		Guaranteed by Yunwu Li, Chief Executive Officer and Chairman of the Board of Directors of the Company and Chairman of the Board of Directors and General Manager of Shenzhen CDT Environmental Technology Co., Ltd.			19,873				—
Zhejiang Hecheng Rural Commercial Bank Co.,Ltd			March 2026				5	%		Guaranteed by Yunwu Li, Chief Executive Officer and Chairman of the Board of Directors of the Company and Chairman of the Board of Directors and General Manager of Shenzhen CDT Environmental Technology Co., Ltd.			69,557				—
Total												$	213,969			$	79,463

Schedule of short-term loans- third parties

Schedule of short-term loans- third parties
Lender Name		Maturities		Interest Rate				Collateral/ Guarantee		December 31, 2024				December 31, 2023
Lou Hong		September 30, 2025			0	%		None		$	626,009			$	—
Lingyu Ye		December 2019 (renewed in December 2020, extended to December 2024)			0	%		None			—				28,237
Runze Li		December 31, 2025			0	%		None			2,086				43,769
Shanghai Xinjing Construction Labor Service Center		November 30, 2025			0	%		None			208,670				211,784
Xiamen Haosheng Investing Co., Ltd.		April 2020 (extended to April 2024)			0	%		None			—				28,238
Total										$	836,765			$	312,028

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- Definition

Tabular disclosure of short-term debt arrangements (having initial terms of repayment within one year or the normal operating cycle, if longer) including: (1) description of the short-term debt arrangement; (2) identification of the lender or type of lender; (3) repayment terms; (4) weighted average interest rate; (5) carrying amount of funds borrowed under the specified short-term debt arrangement as of the balance sheet date; (6) description of the refinancing of a short-term obligation when that obligation is excluded from current liabilities in the balance sheet; and (7) amount of a short-term obligation that has been excluded from current liabilities in the balance sheet because of a refinancing of the obligation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(19))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

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