Water Resources Management

Water used at the Company's facilities is sourced from municipal water supplies and groundwater. According to the World Resources Institute (WRI) Aqueduct Water Risk Atlas, all of Viking's operating locations are situated in areas classified as Low–Medium (1–2) for water risk and are not located in water-stressed regions. Nevertheless, the Company continues to promote water conservation measures and strengthen employees' awareness of water conservation. Hsinchu Headquarters relies entirely on municipal water, primarily for cooling towers and domestic use. Hsinchu Factory II sources 49% of its water from municipal water and 51% from groundwater, mainly for cooling towers, manufacturing processes, and domestic use. Kaohsiung Branch uses 100% municipal water for manufacturing processes and domestic use, while Wuxi Factory relies entirely on municipal water for domestic use.

Total Water Withdrawal Over the Past Three Years

Unit: million liters

Total Water Discharge and Water Consumption Over the Past Three Years

Unit: million liters

Waste Management

Viking has established a Waste Management Procedure under which each facility engages qualified and licensed contractors to handle waste in compliance with applicable regulations. The Company also continues to implement waste reduction initiatives and promote waste management awareness among employees, encouraging environmentally responsible practices in the workplace and daily life. In response to the introduction of new regulatory standards for tin emissions in 2022, the Hsinchu facilities completed the installation of the required treatment equipment.

Changes in waste generation over the past two years were primarily attributable to process optimization and equipment upgrades. In 2025, wastewater sludge generation at the Hsinchu facilities decreased due to improved water conservation and production process optimization. At the Kaohsiung Branch, changes to the municipal waste collection contract resulted in a higher guaranteed collection volume, leading to an increase in reported general waste. At the Wuxi Factory, waste generated in 2025 primarily consisted of recycled waste paper.

Regarding hazardous waste management, the Hsinchu facilities generated 127.9 metric tons of hazardous waste in 2025, achieving a recycling rate of 56.0%. The Kaohsiung Branch generated 149.4 metric tons, with a recycling rate of 98.5%. The combined recycling rate for both facilities reached 78.9%. Viking will continue to improve its waste recycling performance in 2026 as part of its commitment to environmental protection and resource efficiency.

Total waste and resource recycling volume in the past three years