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Property, plant and equipment (Tables)
12 Months Ended
Dec. 31, 2023
Property, plant and equipment  
Schedule of changes in property, plant and equipment

    

    

Furniture &

    

Chemical

    

Year ended December 31, 2022

Equipment

fixtures

library

Total

Opening net book amount

 

72,111

72,111

Additions

 

581

581

Depreciation charge

 

(31,571)

(31,571)

Closing net book amount

 

41,121

41,121

    

    

Furniture &

    

Chemical

    

As of December 31, 2022

Equipment

fixtures

library

Total

Cost

 

1,714,409

7,564

1,207,165

2,929,138

Accumulated depreciation

 

(1,673,288)

(7,564)

(1,207,165)

(2,888,017)

Net book value

 

41,121

41,121

    

    

Furniture &

    

Chemical

    

Year ended December 31, 2023

Equipment

fixtures

library

Total

Opening net book amount

 

41,121

41,121

Additions

 

6,842

6,842

Depreciation charge

 

(25,359)

(25,359)

Closing net book amount

 

22,604

22,604

    

    

Furniture &

    

Chemical

    

As of December 31, 2023

Equipment

fixtures

library

Total

Cost

 

1,721,251

7,564

1,207,165

2,935,980

Accumulated depreciation

 

(1,698,647)

(7,564)

(1,207,165)

(2,913,376)

Net book value

 

22,604

22,604