Samyang equipment is available for purchase in following stores:

Foto-tip.eu
Foto-klik
UK Digital

Please, find below contact details, if you intend to contact regarding:
Service/technical question: qa@syopt.co.kr, phone: +82-55-250-5672
Other inquiries:
jay.kwon@syopt.com
hwangje@syopt.co.kr
marketing@syopt.com
david@syopt.co.kr