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![Head of GS Caltex's R&D Center Kwon Young-woon, left, and Summit Cosmetics President and CEO Koh Akiyama pose for a photo after signing a memorandum of understanding to cooperate on 2,3-Butanediol sales at the Japanese firm's headquarters in Tokyo on Wednesday. [GS CALTEX]](https://image.koreajoongangdaily.com/11222608.jpg?imageId=11222608&width=240&height=184&format=webp&format=jpg)