Topics | Waste Management |
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Policy |
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Commitment |
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Division |
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Resources Invested |
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Grievance Mechanism |
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2022 Targets |
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Actions |
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2022 Achievements |
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Unimicron's main businesses are the manufacturing, processing and sales of printed circuit boards, high-density interconnect printed circuit boards, flexible printed circuit boards, rigid-flex PCBs, carrier boards, and IC test and pre-burning systems. In order to grasp its impact on the environment in the value chain, the Company evaluates the process from raw material procurement, product design, manufacturing process to waste generation, searches for environmentally friendly materials, reduces waste in its own manufacturing process, and implements waste sorting and recycling, reducing the impact of operations on the environment.
The manufacturing process of printed circuit boards generates solid waste and highly concentrated waste liquids, which can be harmful to the environment if not properly handled. Therefore, we attach great importance to the operation of waste management system, and storage, transportation and disposal of waste inside and outside the factory to prevent pollution and hazards from occurring. In particular, in waste management, qualified firms are screened and commissioned to handle waste, and a strict firm review and audit mechanism is in place. In 2022, a total of 62 waste firms were audited, and the treatment was in full compliance with relevant laws and regulations, and no waste leakage occurred. Since Unimicron is not the manufacturer of end products, it is not easy to track the final disposal methods or the recycling status of the products used, so we cannot quantify the relevant data.
The waste generated in the plant is divided into two major categories, General Industrial Waste and Hazardous Industrial Waste, and the quantities are recorded by weighing. In 2022, the total output of various types of waste was 121,000 tons, and the volume of General Industrial Waste was 39,000 tons, of which 35,000 tons (90.0%) was the weight of waste diverted from disposal and 4,000 tons was the weight of waste directed to disposal; the volume of Hazardous Industrial Waste was 82,000 tons, of which 75,000 tons (91.9%) was the weight of waste diverted from disposal and 7,000 tons was the weight of waste directed to disposal, with an overall reuse rate of 91.3%.
In order to promote the sustainable cycle of resources, we adopt the thinking of circular economy to effectively recycle resources and reuse waste plastics, reduce the waste of raw materials in the manufacturing process, and reduce the consumption of raw materials. Due to the increase in production capacity in some plants in Taiwan, the amount of Hazardous Industrial Waste produced has increased. In terms of total waste generation intensity per unit of revenue, it was 0.86 metric tons per million of revenue in 2022, a 29% decrease from 2021.
Item | Region | Unit | 2021 | 2022 |
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Waste Generation | Taiwan and Mainland China | Metric Ton/Million in Revenue | 1.21 | 0.86 |
Waste Recycling | % | 91.6 | 91.3 |
Region | Category | Directed to Disposal | Diverted From Disposal | Total Waste | |||
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2021 | 2022 | 2021 | 2022 | 2021 | 2022 | ||
Taiwan | General Industrial Waste | 1,458 | 1,205 | 27,578 | 26,736 | 29,036 | 27,941 |
Hazardous Industrial Waste | 3,921 | 4,580 | 23,532 | 30,938 | 27,453 | 35,518 | |
Subtotal | 5,379 | 5,785 | 51,110 | 57,674 | 56,489 | 63,459 | |
Mainland China | General Industrial Waste | 2,654 | 2,699 | 10,474 | 8,431 | 13,128 | 11,130 |
Hazardous Industrial Waste | 2,539 | 2,063 | 54,338 | 44,473 | 56,877 | 46,536 | |
Subtotal | 5,193 | 4,762 | 64,812 | 52,904 | 70,005 | 57,666 | |
Total | 10,572 | 10,547 | 115,922 | 110,578 | 126,494 | 121,125 |
Region | Category | Sub-category | Onsite | Offsite | Total | |||
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2021 | 2022 | 2021 | 2022 | 2021 | 2022 | |||
Taiwan | General Industrial Waste | Reuse | 0 | 0 | 0 | 0 | 0 | 0 |
Recycling | 0 | 0 | 0 | 0 | 0 | 0 | ||
Others | 0 | 0 | 27,578 | 26,736 | 27,578 | 26,736 | ||
Subtotal | 0 | 0 | 27,578 | 26,736 | 27,578 | 26,736 | ||
Hazardous Industrial Waste | Reuse | 0 | 0 | 0 | 0 | 0 | 0 | |
Recycling | 0 | 0 | 0 | 0 | 0 | 0 | ||
Others | 0 | 0 | 23,532 | 30,938 | 23,532 | 30,938 | ||
Subtotal | 0 | 0 | 23,532 | 30,938 | 23,532 | 30,938 | ||
Total | 0 | 0 | 51,110 | 57,674 | 51,110 | 57,674 | ||
Mainland China | General Industrial Waste | Reuse | 0 | 0 | 0 | 0 | 0 | 0 |
Recycling | 2 | 0 | 5,189 | 6,890 | 5,191 | 6,890 | ||
Others | 3,348 | 0 | 1,935 | 1,541 | 5,283 | 1,541 | ||
Subtotal | 3,350 | 0 | 7,124 | 8,431 | 10,474 | 8,431 | ||
Hazardous Industrial Waste | Reuse | 0 | 0 | 390 | 326 | 390 | 326 | |
Recycling | 6,901 | 5,586 | 37,004 | 37,098 | 43,905 | 42,684 | ||
Others | 9,316 | 676 | 727 | 788 | 10,043 | 1,464 | ||
Subtotal | 16,217 | 6,262 | 38,121 | 38,211 | 54,338 | 44,473 | ||
Total | 19,567 | 6,262 | 45,245 | 46,642 | 64,812 | 52,904 |
Region | Category | Sub-category | Total | |
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2021 | 2022 | |||
Taiwan | General Industrial Waste | Incineration(with energy recovery) | 1,196 | 1,097 |
Incineration(without energy recovery) | 0.22 | 15 | ||
Landfilling | 261 | 93 | ||
Other Disposal Operations | 0 | 0 | ||
Subtotal | 1,458 | 1,205 | ||
Hazardous Industrial Waste | Incineration(with energy recovery) | 2,077 | 2,653 | |
Incineration(without energy recovery) | 0 | 0 | ||
Landfilling | 1,656 | 1,790 | ||
Other Disposal Operations | 188 | 137 | ||
Subtotal | 3,921 | 4,580 | ||
Total | 5,379 | 5,785 | ||
Mainland China | General Industrial Waste | Incineration(with energy recovery) | 0 | 0 |
Incineration(without energy recovery) | 2,024 | 2,268 | ||
Landfilling | 0 | 0 | ||
Other Disposal Operations | 630 | 431 | ||
Subtotal | 2,654 | 2,699 | ||
Hazardous Industrial Waste | Incineration(with energy recovery) | 0 | 0 | |
Incineration(without energy recovery) | 2,539 | 2,063 | ||
Landfilling | 0 | 0 | ||
Other Disposal Operations | 0 | 0 | ||
Subtotal | 2,539 | 2,063 | ||
Total | 5,193 | 4,762 |
Site | Strategies | Contents | Outcomes | Unit |
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Unimicron | Introduction of SRF treatment method: Reduce the amount of waste incineration | Reduce the amount of incineration | 849 | Metric Ton/Month |
Precious metal recycling improvement: Introduce palladium plate-containing precious metal recycling treatment. | Increase the amount of palladium recovered | 7.7 | Kg/Month | |
Unimicron (Shenzhen) | ENIG adjustment of nitrate tank: Reduce outsourcing disposal cost of nitrate waste liquid. | Reduce outsourcing | 9 | Metric Ton/Month |
Unimicron (Suzhou) | Acid waste reuse: Evaluate and introduce acidic palladium recovery equipment. | Increase the amount of palladium recovered | 1,635 | G/Month |
Filter waste reduction: Introduce the filter-drying machine, with a weight reduction rate of 47.5%. | Reduce the weight of filter waste | 87 | Metric Ton/Month | |
Nickel waste reduction: Introduce the nickel concentration system, with a weight reduction rate of 90.4%. | Reduce the weight of nickel waste liquid | 19 | Metric Ton/Month | |
Film residue reduction: Introduce the steam film residue dryer, with a weight reduction rate of 63.0%. | Reduce the weight of film residue | 58 | Metric Ton/Month | |
Waste liquid reduction: Introduce a three-effect evaporation system, with a weight reduction rate of 90.4%. | Reduce the weight of high organic waste liquid | 8,207 | Metric Ton/Month | |
Unimicron (Kunshan) | Concentration system for nickel-containing waste liquid: Reduce the outsourcing disposal cost of nickel waste liquid. | Reduce outsourcing | 128 | Metric Ton/Year |
Drying equipment for waste film residue: Reduce the outsourcing disposal cost of waste film residue. | Reduce outsourcing | 215 | Metric Ton/Year | |
Unimicron (Huangshi) | Add a filter spin dryer. | Reduce outsourcing | 12 | Metric Ton/Month |
QunHong Technology | Introduce palladium resin recovery in the palladium washing sink body of the production line. | Increase the amount of precious metals recovered | 344 | Kg/Month |
Increase the recycling benefits of gold tailings. | Increase the amount of precious metals recovered | 100 | Kg/Month |
Site | Strategies | Expected Outcomes |
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Unimicron | Continue to introduce SRF treatment to reduce the amount of waste incineration. | Reduce incineration |
Introduce film slag acidification and dehydration facilities to reduce the water content of film residue outsourced for treatment. | Reduce outsourcing | |
Unimicron-FPC (Kunshan) | Introduce nickel reduction facilities to reduce outsourcing disposal costs for nickel waste liquid. | Reduce outsourcing |
QunHong Technology | Sorting and recycling of bakelite boards | Increase the weight of recycled bakelite boards |
Newly added paper container recycling items | Reduce the weight of general garbage disposal |
Reduce the amount of general waste incineration.
In order to reduce the dependence on incineration of company-wide general waste, review and improve the treatment of incineration waste.
Reduced waste incineration and landfill by 1,216.8 tons/year.