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Employee share scheme reserve (Tables)
12 Months Ended
Dec. 31, 2025
Employee share scheme reserve  
Summary of number and weighted average exercise prices of share options

2025

2024

2023

Average

Average

Average

exercise

exercise

exercise

price per

Number of

price per

  ​ ​ ​

Number of

  ​ ​ ​

price per

Number of

  ​ ​ ​

share option

  ​ ​ ​

options

  ​ ​ ​

share option

options

share option

options

 

USD

 

USD

USD

As of 1 January

18.77

246,304

 

40.330

106,304

 

3.554

 

10,866,324

Reverse stock split effect (1 to 25) (i)

88.86

434,203

Granted during the year

0.01

50,000

 

0.01

140,000

 

162.500

 

2,728

Exercised during the year

 

 

0.001

 

(116,629)

Forfeited during the year

 

 

162.300

 

(213,998)

As of 31 December

15.60

296,304

 

18.77

246,304

 

40.330

 

106,304

As of 31 December reflecting reverse share split

40.33

106,304

Vested and exercisable

18.23

168,179

 

36.61

126,304

 

38.790

 

105,529

12Employee share scheme reserve (continued)

(i)Reverse share split: on 25 January 2023, the Company restructured its outstanding and authorized shares through reverse share split with a ratio of 1 to 25, accordingly all the share awards and strike prices were adjusted using the same ratio.

Summary of expiry date and exercise prices

  ​ ​ ​

As of 31 December

  ​ ​ ​

2025

  ​ ​ ​

2024

  ​ ​ ​

2023

Number of options outstanding

296,304

 

246,303

 

106,304

Range of exercise price

$0-$250

$0-$250

$0-$250

Range of expiry dates

April 2027 – August 2035

April 2027 – June 2036

April 2027– June 2036

Weighted average remaining contractual life (in years)

7.22

7.72

6.05

Summary of strike price

  ​ ​ ​

As of 31 December

Strike price

  ​ ​ ​

2025

  ​ ​ ​

2024

$0-20

230,611

 

180,610

$20-47.5

17,646

 

17,646

$47.5-61.5

6,565

 

6,565

$61.5-85

36,894

 

36,894

$250

4,588

 

4,588