About Us

What SUMCO?

Silicon United Manufacturing COrporation sumco is a group creating value with diverse technologies and culture. sumco is a company creatide by merging the silicon wafer operations of Sumitomo and Mitsubishi. sumco is a dedicated silicon wafer manufacturer with a global market share of approximately 30%,and an overseas sales ratio of about 80%.Silicon United Manufacturing COrporation sumco is a group creating value with diverse technologies and culture. sumco is a company creatide by merging the silicon wafer operations of Sumitomo and Mitsubishi. sumco is a dedicated silicon wafer manufacturer with a global market share of approximately 30%,and an overseas sales ratio of about 80%.

Major awards in 2017

Three Major Awards for Four Consecutive Years.

Awarded for the 16th straight year and
17th time overall

Intel2017 Supplier Continuous Quality Improvement(SCQL) Award

Awarded for the 16th straight year and
17th time overall

Intel2017 Supplier Continuous Quality Improvement(SCQL) Award

The SCQL Award id granted by Intel to its suppliers who make ongoing efforts to improve quality.
To qualify for this award, a supplier must score at least 95 percent on a report card that assesses performance and ability to meet cost, quality, availability, environmental, technology, and governance goals. Suppliers must also successfully carry out a challenging improvement plan and demonstrate solid quality and business systems. SUMCO has won this award for 16 consecutive years and 17 times overall.

Award winner for five straight years

Samsung2017 Best In Value Award

Award winner for five straight years

Samsung2017 Best In Value Award

SUMCO won a Best In Value Award from Samsung, the world's leading semiconductor memory manufacturer, at the 2017 Samsung Japan Appreciation Day.

Excellent supplier award for the fourth
straight year

TSMC2017 Excellent Performance Award

Excellent supplier award for the fourth
straight year

TSMC2017 Excellent Performance Award

At the 17th Supply Chain Management Forum of TSMC, SUMCO was one of only 12 companies to receive the Excellent Performance Award from among over 600 major TSMC suppliers. This was the fourth straight year and sixth time since 2010 to receive the award.