| Division | Area | Office | |
|---|---|---|---|
| IT Business | SMPS Sales | +82-31-350-7462 | jjpark@yuyang.co.kr |
| Equipment Sales | +82-31-350-7468 | choss@yuyang.co.kr | |
| Chemical Business | Chemical Sales | +82-31-8084-3909 | ngw3281@yuyang.co.kr |
| Planning Division | IR(Investment Relation) | +82-31-8084-3986 | wonjunha@yuyang.co.kr |
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