• United Microelectronics average return on investment for 2023 was 19.17, a 13.96% decline from 2022.
• United Microelectronics average return on investment for 2022 was 22.28, a 49.63% decline from 2021.
• United Microelectronics average return on investment for 2021 was 14.89, a 125.95% increase from 2020.

Roi - return on investment can be defined as an indicator of how profitable a company is relative to its assets invested by shareholders and long-term bond holders. Calculated by dividing a company's operating earnings by its long-term debt and shareholders equity.