A Practitioner of Green Power
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TSMC Commits to Being a Circular Economy Practitioner

TSMC invests in in-house recycling facility to regenerate waste into resources, and continues to promote replacement of electronic raw materials with recycled materials

TSMC shares relevant experience and processing technology to other companies in the industry
TSMC hosts a reception for junior high school students to visit the TSMC resource regeneration system and let the students understand the concepts of circular economy
On-site operation of the regenerated copper sulfate system

TSMC continues expanding its research and development investment and driving the development of advanced semiconductor processes, spearheading changes in the IC design, manufacturing, and packaging industries. Everyday life has become more and more convenient with the advent of smarter and more diverse devices. Since the semiconductor manufacturing process requires a large number of chemicals, reducing the consumption of chemicals and turning waste into valuable resources is a long-term concern for TSMC.

In 2010, TSMC started introducing in-house waste regeneration facilities to convert the waste from its production processes into various types of products. Taking a step further, TSMC started selling these recycled products to other companies in 2017 as an expansion of its five-year "Action Plans to Turn Waste into High Value Products" program, hoping to achieve our vision of upcycling semiconductor's waste back to their original industry and move towards the goal of the sustainable development of the overall supply chain.

TSMC Amends Articles of Incorporation to Improve Opportunities to Reuse Material Resources

TSMC has enabled the circular economy with practical actions. We hope that people will be able to reduce the earth's burden through resource regeneration while enjoying the convenience provided technology.

Milestones of TSMC's Circular Economy

Promoting its "Action Plans to Turn Waste into High Value Products"

In addition to selling our in-house recycled products, the implementation of the "Action Plans to Turn Waste into High Value Products" aims to reduce natural exploitation through material recycling, transforming manufacturers from waste producers to executors in the circular economy. Moreover, TSMC actively shares relevant experience and processing technology with the industry, in hopes of improving the recycling capabilities of Taiwan's manufacturing sector.

Innovative Circular Economy Model - Material Recycling Reduces Natural Extraction

TSMC's "Action Plans to Turn Waste into High Value Products"

Waste CategoryAction Plans to turn Waste into High Value Products
Waste Ammonium Sulfate
Turning ammonium sulfate waste into industrial-grade recycled products
The liquid ammonium sulfate produced by ammonia nitrogen wastewater will be treated by low temperature evaporation crystallization process, forming industrial-grade ammonium sulfate.
Electronic-grade ammonia
Waste ammonium sulfate will be converted into electronic-grade ammonia water by raw material supplier and returned to TSMC.
Waste Sulfuric Acid
Zero purchasing - Waste sulfuric acid recovery for internal reuse Waste sulfuric acid is removed from hydrogen peroxide then combined with ammonia nitrogen wastewater to convert wastewater into usable ammonium sulfate.
Electronic-grade sulfuric acid
Waste sulfuric acid will be converted into electronic-grade ammonia water by raw material supplier and returned to TSMC.
Waste IPA
Low-concentration isopropyl alcohol will be concentrated to industrial-grade products
15% concentration IPA will be evaporated to 85% concentration.
Waste Copper Sulfate
Turning copper sulfate waste into industrial-grade recycled products
Copper-containing waste will be electrolyzed to copper tubes.
Waste Cobalt Sulfate
Turning cobalt sulfate waste into industrial-grade recycled products
Cobalt-containing waste will be electrolyzed to cobalt tubes.
Waste Chemical Drum
Turning waste chemical drums into industrial-grade recycled products
Chemical drums will be washed and crushed to plastic sheets, which are used as raw materials for recycled plastic pellets.

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