According to the Aqueduct Water Risk Atlas of the World Resources Institute, all areas in Taiwan belong to Low – Medium (1-2). All the TSC operating bases are not set up in national or international protection areas, and the water intake is from the legal water resources authorized by the government, having no significant influence on water resources. In 2024, the amount of water intake was 7,915.25million liters, a 24.12% decrease compared with 2023(10.43154 billion liters), and the water intensity decrease 28.57% compared with the previous year, primarily due to an increase in rainfall of 5,647.5mm in the Yunlin-Chiayi-Tainan and Kaohsiung-Pingtung regions this year, resulting in reduced agricultural irrigation water usage.
TSC is dedicated to the improvement of water management and wastewater recovery, proper use of water resources, reduction of wastewater discharge and enhanced water conservation effectiveness. The consumption of water of 2024 was 5,919.30 million liters. Overall wastewater recovery rate (R2) is over 79%.
Wastewater Discharge
TSC's business units that generate waste water all have relevant wastewater treatment procedures and obtain the water pollution prevention and control permits. Qualified testing agencies are entrusted to take samples for analysis on a regular basis, and the declaration of the inspection is also conducted on the website designated by the MOENV. The effluents are discharged to the sewage system or approved water bodies legally, and the quality of discharged water is in compliance with the discharge water standards stipulated in laws and regulations for the industry. Wastewater is finally discharged into the sea and does not have major impacts on the water sources. The amount of discharged wastewater in 2024 was 1,995.95 million litters, a decrease of 9.13% compared with 2023, which is mainly because of the increase in the number of heads raised in Wanxing, Douliu, and Nanshalun pig farms of the Livestock Business Division.
Air Pollution Monitoring
In order to comply with the environmental protection laws and regulations, TSC has formulated Key Points for Environmental Management for the Operations of Air Pollution Prevention, and also included the ISO 14001 Environmental Management Standards to establish operations, inspections and emergency response measures to ensure compliance with laws and regulations related to air pollution. Prevention of air pollution begins with the rational reduction of pollutants in the process before being emitted into the exhaust gas, and air pollution control equipment handles pollutants in the exhaust gas. Currently, the large scale (granular pollutants of pollutants reaching 10 metric tonnes/ year, or sulfur oxide reaching 5 metric tonnes/ year, or volatile organic compounds reaching 5 metric tonnes/ year) stationary pollution sources are the three sugar factories under the Sugar Business Division. The rest relatively small-scale stationary pollution sources include 2 locations of the Biotechnology Business Division, 73 locations of the Petroleum Business Division, 19 locations of Livestock Business Division, 1 location of the TSRI, and 1 location each of the Tainan and Yunchia Operation Branches. The air pollutant emissions of all units are in accordance with the emission standards and are reported regularly. TSC’s Department of Environmental Protection also makes on-site inspection from time to time.
Based on the actual test results over the years, the concentration of air pollutants emissions also met the emission standards set by the Ministry of Environment. In 2024, the NOx and SOx emission intensities decreased by 14.71% and 25.00% respectively compared to 2023. This is mainly due to the gradual replacement of boiler tubes by the Huwei and Shanhua Sugar Factories of the Sugar Business Division to improve heat transfer efficiency, increase boiler efficiency, and indirectly reduce SOx and NOx emissions. The air pollution control situation is shown as follows, and the emission concentrations are in compliance with regulatory standards.