Over the past 5 years, revenue shrank in the first and last years, with growth in the middle 3 years, with an average growth rate of only 2.6%. Operating profit turned around in 2020 due to gross margin improvement, reaching a peak of 0.133 billion in 2022. It shrank by 19.1% in 2023. In 2022, net income reached 0.44 billion due to non-operating income and income tax subsidies, dropping to 0.092 billion in 2023. There was no interest expense in 2023. The gross margin rate increased from 44.2% to 60.2% in the past 5 years, dropping back to 59.5%. The return on net assets in 2023 was 10.2%.