The main uses of water resources at each of WT Taiwan’s operating bases are recycled water for air-conditioning in office areas and water for employees’ daily use. The water discharged is mainly employees’ domestic sewage, which is discharged into the building’s pipeline and then enters the sewer system. The evaporation of water for air-conditioning is the main reason for consumption. As there is no valid statistical method for water discharge and water consumption, only the amount of water withdrawn is disclosed. Water withdrawal in 2021 is 11.14 million liters (ML), a decrease of 5.87 ML compared to 2020. This is mainly due to a 34.52% reduction in office attendance due to the implementation of work from home measures for COVID-19 and a 42.38% reduction in water withdrawal intensity compared to 2020.
 
In 2021, WT has continued to use various means to promote information on water conservation, prioritizing the procurement of water-using equipment with water-saving labels, and regularly deploying staff to inspect whether there are any water leaks, in the hope of implementing water conservation practices in people’s daily life, so as to maximize the effectiveness of water resources.
 




1: The inventory boundary covers WT Microelectronics, Morrihan International Corp., Techmosa International Inc., Maxtek Technology Co., Hongtech Electronics Co., Nuvision Technology, Inc., Brillnics (Taiwan) lnc., WT Joint Staff Welfare Committee, and other operating bases in Taiwan, in which 12 offices are added in Zhonghe and Hsinchu in 2021.


2: In order to implement water resources management, the amount of water consumption is recorded in the water company’s bills from 2021 onward, and water charges and unit prices are used for estimation in the years before 2020. The water charges for the Taichung office are apportioned according to the proportion of the management fee charged by the building management committee where the office is located, so the actual water consumption cannot be accurately determined, and the proportion of the total water intake is extremely low, so it is not included.


3: The denominator used for the water intensity is the floor area; please refer to Note 7 of the greenhouse gas emission intensity.