SoluM said on Thursday that its operating income in 2020 increased 59.6% from 2019.
The company posted sales of 745.7 billion won and operating income of 20 billion won. Net income was 10.2 billion won.
Sales increased 18.2% year-on-year and net income 43.4%.
SoluM said the sales growth was led by its 3 in 1 modules and electronic shelf labels (ESL).
Improvements in its supply chain and cost control increased profitability, the company added.
The company will report its full 2020 earnings, which will include subsidiaries and affiliates, before the shareholders' meeting.