The Cusan Message from the Managing Partner

CEO Greeting

The rapid expansion of global trade, the proliferation of FTAs, the emergence of new product categories, and the growing intensity of customs audits have collectively transformed what it means to manage cross-border operations. Compliance is no longer a back-office function — it is a strategic imperative.

CUSAN was built in direct response to this reality. We have assembled a team of specialists across every critical discipline — Customs Audits, FTA consulting, ACVA, AEO certification, and Tariff Classification — each bringing deep field experience and the kind of practical judgment that only comes from years of hands-on engagement.

Our approach goes beyond transactional clearance. Every client engagement is informed by consulting expertise: we analyze your exposure, anticipate regulatory developments, and build the operational frameworks that keep your business compliant, competitive, and protected.

We measure our success by yours. That commitment — to accuracy, to stability, and to your long-term interests — is the standard against which we hold ourselves every day.

Yunsig Choi Certified Customs Broker
Yunsig Choi
Certified Customs Broker

Education & Qualifications

  • Certified Customs Broker
  • B.A. in Customs Administration, National Tax College

Professional Experience

  • Managing Director, KPMG Customs Corporation
  • Korea Customs Service

Case Studies

  • Customs Audits Defense

    Successfully led over 100 major audits for global enterprises including Jaguar Land Rover, Continental Automotive Electronics, KOMSCO, LG International, and Hyundai Oilbank.

  • Rectification & Duty Drawback

    Provided expert advisory for major tech and energy firms including Denso Korea, Samsung Electronics, Toshiba Electronics, S-OIL, etc.

  • ACVA

    Renault Samsung Motors, Amway Korea, TaylorMade, Keyence Korea, etc.

  • AEO Consulting

    Samsung Electronics, Samsung Display, KOMIPO, DSME, etc.

Juhyung Park Certified Customs Broker
Juhyung Park
Certified Customs Broker

Education & Qualifications

  • Certified Customs Broker
  • B.A. in Business Administration, Chung-Ang University

Professional Experience

  • Indirect Tax Team, Ernst & Young (EY)
  • Customs Team, APEX Law LLC

Case Studies

  • Customs Audits & Advisory

    Successfully managed customs audits and provided expert advisory for major global and domestic enterprises including Microsoft, Coupang, Canon Medical Systems Korea, Servier Korea, SFA Semicon, Hanwha Corporation, LG CNS, etc.

  • ACVA

    Microsoft, HOYA Korea, Momentive Performance Materials Korea, etc.

  • AEO Consulting

    Hotel Shilla Duty Free, Coupang, KOMIPO, LG Innotek, etc.