Water Stewardship

Water Risk Management

1. HIWIN is dedicated to water efficiency and sustainable water use and management.
2. Comply with government laws and regulations and pay close attention to sustainable water management trends around the world.
3. Formulate water management programs and set targets, track progress, and evaluate outcomes.
4. Enhance our ability to respond to risks from extreme climate events and climate change and continue to roll out climate change response measures.
5. Integrate internal and external resources and actively evaluate water risk management across the supply chain and value chain.
6. Continue to invest in and roll out water management technologies and knowledge and develop diverse water resources.
7. Compile data from water life cycle management to increase transparency of water management at HIWIN.
8. Support the use of water-saving products, services, and designs to increase water efficiency and continue improving.

Water is an invaluable natural resource to HIWIN. On the subject of water resources, HIWIN has been actively conserving water to reduce the risks of water shortages and employed various measures such as increasing water recovery rates to achieve water balance and ensure sustainable production. In 2020, we received verification for ISO 14046:2014 water footprint, in which we reviewed the reasonable water usage from manufacturing processes and uncovered opportunities for water recycling to reduce the amount of tap water needed. We estimate that in 2022, we will obtain certification for ISO 46001 water efficiency management systems. In the future, we will deploy the ISO 46001 to roll out more effective and comprehensive water conservation and management measures.

All HIWIN factories have filed, in compliance with regulations, Water Pollution Control Measure Plans and Permit Applications. Water withdrawal is largely from tap water and mainly used in cooling towers and for domestic uses. Water meters are installed at the user end to manage water usage and make plans for water recycling equipment.

In 2021, Taiwan experienced a drought that put a serious strain on local water supplies. HIWIN supported the government’s water conservation policies and rolled out various measures to such ends. Between March and May of 2021, we implemented various water conservation measures, including reducing tap water pressure, controlling A.C. Settings, and installing water storage containers, which helped us conserve 2,540 metric tons of water.

To increase water efficiency, we increased water recovery rate at Yunlin Factory II and installed a water recovery system at Yunlin Factory III in 2021 for watering plants in the factory and flushing toilets. In 2021, recycled water accounted for 8.4% of total water withdrawal from factories with water recovery systems and 5.9% of HIWIN’s total water withdrawal.

In 2022, we plan to use recycled water from HQ for cooling towers and complete installations of the water recovery system at Dapumei Factory III. Our target for the coming year is for recycled water to account for 7% of total water withdrawal.

Water Recycling & Reuse

2017-2021 Water Recovery Rate

HIWIN has implemented water management measures internally to actively save water and also enhance our water recovery systems with help from industrial parks and in support of the government. In 2021, we made plans to install 147 smart water meters and have already installed 54 meters. The remainder will be installed by the end of 2022. The smart water meters can be integrated with our energy monitoring systems to monitor the water flow and detect equipment anomalies or malfunctions. It can also monitor daily water withdrawal and make immediate changes when anomalies occur. We have also enhanced the quality of recycled waters from our wastewater recovery system by installing a new RO system. The recycled water can now be used in A.C. units, effectively reducing our water withdrawal.

Smart Water Flow Monitoring System Water Flow

Wastewater Discharge Management

Water sources for HIWIN locations in the Taichung City Precision Machinery Innovation Technology Park (HQ & Jingke Factory II) and Taichung Industrial Park (Gong Factory I & II) largely originates from the Dajia River Shigang Dam. Our factories in Taichung uses less than 5% of the water reserves in the Shigang Dam (effective capacity is 1,430,000 cubic meters).

In 2021, HIWIN used a total of 833 million liters of water. All water sourced from third parties are tap water supplied by local water companies. We used the World Resources Institute’s (WRI) Aqueduct tools and Taiwan’s water distribution to idenitfy the water risk levels of areas with a HIWIN presence. All HIWIN factories are located in areas with low risks of water stress.

Wastewater Discharge & Final Destination

Note: All HIWIN factories are located in industrial parks have no significant impact on local communities.

Water Flow

Tap Water Use in All Factories between 2017~2021

Factory \ Year	2017	2018	2019	2020	2021
HQ	122.985	136.217	116.343	126.865	143.399
Factory I	46.862	21.309	19.539	20.048	20.629
Factory II	49.392	41.158	33.440	39.407	37.764
Factory VII	8.052	7.321	7.549	9.932	11.972
Yunlin Factory	294.774	345.757	360.801	359.572	402.415
Jingke Factory II	-	40.234	42.836	44.748	49.946
Dapumei Factory	-	122.774	204.325	217.775	166.779
Total	541	731	799	818	833

2021 Water Stewardship at HIWIN

Water Stewardship		Water volume (1 million liters)
Water withdrawal(by source)	Surface water + Groundwater + Seawater	0
	Total water output	0
	Third-party water (total)(Note 1)	833
	Total water withdrawal	833
Wastewater discharge(by final destination)	Surface water + Groundwater + Seawater	0
	Third-party water provided to other organizations	0
	Third-party water (total)	279
	Total wastewater discharge	279
Water consumption	Total water consumption(Note 2)	554
	Water storage	16
	Changes in water storage(Note 3)	0

Water Pollution Prevention and Control

Wastewater discharges at all HIWIN locations are treated first by the industrial park or service center’s wastewater treatment center before being discharged. Impact level <4%.

HIWIN has established internal laboratories to monitor and regularly test water qualities in real time to ensure that HIWIN’s wastewater discharge complies with the discharge standards set forth by the industrial parks. We’ve also commissioned an EPA-authorized testing agency to inspect our wastewater discharge on site as well as another dedicated vendor to handle wastewater produced from manufacturing processes.

2019-2021 Wastewater Discharge & Impact Level

Factory	Discharge (1,000 metric tons/ day)			Vendor	Water Treated (1,000 metric tons/ day)	Final Destination	Impact level(%)
	2019	2020	2021				2019	2020	2021
HQ, Jinke Factory II, Factory VII	0.22	0.17	0.17	Precision Machinery Innovation Technology Park Wastewater Treatment Center	4.83	Fazi Creek	5%	4%	4%
Factory I, Factory II	0.08	0.10	0.10	Taichung Industrial Park Service Center Wastewater Treatment Plant	20.36	Nanbian Creek & Fazi Creek	0%	0%	0%
Yunlin Factory I	0.15	0.11	0.23	Yunlin Industrial Park (Dabeishi District) Wastewater Treatment Plant	11.71	Huwei Creek (South)	1%	1%	2%
Yunlin Factory II	0.07	0.08	0.08	Yunlin Industrial Park (Dabeishi District) Wastewater Treatment Plant	11.71	Huwei Creek (South)	1%	1%	1%
Yunlin Factory III	0.19	0.21	0.19	Yunlin Industrial Park (Zhuweizi District) Wastewater Treatment Plant	17.00	Huwei Creek (South)	1%	1%	1%
Dapumei Factory I & Dapumei Factory III	0.13	0.09	0.12	Dapumei Precision Machinery Park Wastewater Treatment Plant	3.40	Dapumei Creek	4%	3%	3%