About Think System

Origin

Think System began in Yeongdeungpo-gu, Seoul, when a group of financial controllers and internal auditors noticed the same gap: budget policies were documented, yet the application of those controls — who could commit funds, when ceilings were breached, how overrides were recorded — rarely received dedicated audit attention.

We formed a practice around that gap. Our work stays close to appropriation lines, commitment registers, and the people who authorise spend.

What we stand for

Independence from the ledger close. We do not prepare the books we examine. Findings belong to the evidence, not to a preferred narrative for management.

Specificity over slogans. Every observation names a control point and a fiscal effect. Vague “strengthen controls” language does not leave our reports.

Respect for local fiscal practice. South Korean public and private budget cycles have distinct rhythms. Our sampling calendars respect fiscal-year cutoffs, board calendars, and the practical limits of finance team capacity during close.

People

Soo-yeon Han — Engagement Partner

Former group controller with experience spanning manufacturing and public-adjacent entities. Leads scoping, committee presentations, and final report sign-off.

Jae-ho Kim — Control Specialist

Focuses on commitment control testing and virement analysis. Conducts most cost-centre walkthroughs during fieldwork.

Eun-ji Ryu — Reporting Lead

Owns working-paper structure and audit committee packs. Ensures each finding is traceable from sample to conclusion.

How we work with clients

We start with a scoping call, issue an access letter, and agree sample depth before fieldwork begins. During the engagement, budget holders receive clear sample lists rather than open-ended document hunts. At close, we walk findings with management before the committee sees the final pack.

If you want to discuss whether an engagement fits your current fiscal year, request scoping.