Related party transactions (Details) - USD ($)		Jun. 30, 2024	Dec. 31, 2023
Related Party Transaction [Line Items]
Related parties receivables		$ 3,878,473	$ 1,110,135
Shenzhen Junfeng Wood Chain Network Technology Co Ltd [Member]
Related Party Transaction [Line Items]
Related parties receivables	[1]	415,138	1,110,135
Gongfa Guangdong New Material Technology Co Ltd [Member]
Related Party Transaction [Line Items]
Related parties receivables	[2]	3,458,555
Mrang Qing Jian [Member]
Related Party Transaction [Line Items]
Related parties receivables	[3]	$ 4,780

[1] Amounts receivable from Shenzhen Junfeng Wood Chain Network Technology Co., Ltd., where Mr. Li JiYong serves as the legal representative, comprise of loans receivables.

[2] Amounts receivable from Gongfa (Guangdong) New Material Technology Co., Ltd., where Mr. Li JiYong is a significant shareholder of the entity and serves as the director of the entity, comprise of amounts advanced for the purpose of acquiring 61% equity interest in the said entity for which the transaction has not been finalized.  

[3] Amounts receivable from Mr. Wang QingJian, COO of the Company, comprise of amounts advanced for formaldehyde removal services.