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v3.22.4

Property, plant and equipment, net | 6 Months Ended
--- | ---
Jun. 30, 2022
Property, plant and equipment, net |
Property, plant and equipment, net | Note 8 – Property, Plant and Equipment, net Property, plant and equipment stated at cost less accumulated depreciation consisted of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | June 30, |  | December 31,
​ | ​ | 2022 | ​ | 2021
Building | ​ | $ | 4,987,014 | ​ | $ | 5,228,347
Machinery and Production equipment | ​ |  | 1,250,731 | ​ |  | 1,307,356
Electronic equipment | ​ |  | 196,006 | ​ |  | 203,305
Office equipment | ​ |  | 46,094 | ​ |  | 48,440
Automobiles | ​ |  | 518,606 | ​ |  | 545,006
Construction in progress | ​ |  | 326,767 | ​ |  | 343,401
Subtotal | ​ |  | 7,325,218 | ​ |  | 7,675,855
Less: Accumulated depreciation | ​ |  | (5,495,957) | ​ |  | (5,571,908)
Property, plant and equipment, net | ​ | $ | 1,829,261 | ​ | $ | 2,103,947
​ Depreciation expense was $200,439 and $234,756 for the six months ended June 30, 2022 and 2021, respectively. As of June 30, 2022 and December 31, 2021, building with net book value of $507,586 and $588,063 respectively, were pledged as collateral for bank loans (Note 11).

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- Definition The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 6 -URI https://asc.fasb.org/extlink&oid=126982197&loc=d3e99893-112916 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI https://asc.fasb.org/topic&trid=2155823 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 7 -URI https://asc.fasb.org/extlink&oid=126982197&loc=SL120174063-112916 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 1 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=126982197&loc=d3e99779-112916 + Details
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