Kospi issuers should publish concise English summaries of material event disclosures before Tokyo-linked retail inflows accelerate—not optional PDF attachments translated overnight by vendors who never read the underlying Korean footnotes. Our markets desk reported Samsung Electronics and SK hynix leading a chip rally during Trump–Xi week; overseas buyers trading those moves on headline scanners deserve the same factual spine domestic analysts extract from DART, not guesswork from machine output.

Why English summaries matter now

Bank of Korea capital-flow tables already show rising portfolio investment from Japan and Hong Kong hubs into Korea large caps. Many flows are discretionary retail and semi-professional accounts using English-language terminals that ingest DART filings with delay and without nuance on Korean accounting phrases. When a company posts a earnings revision or related-party loan in Korean only, price discovery splits: domestic brokers react in minutes, offshore chat rooms react to mistranslated keywords hours later.

FSS has encouraged voluntary English reporting for years; compliance often means attaching templated statements that omit the load-bearing numbers—conversion ratios, treasury share cancellations, regulatory fines. That is not disclosure; it is checkbox tourism.

What good summaries look like

We want issuer-written English of one to two pages within the same filing window as Korean material events: what changed, numeric impact, effective dates, and what management is not updating. Not marketing adjectives. Not automated “for reference only” disclaimers without content. Summaries should name the Korean form number they translate, so auditors can trace lines.

KRX Global’s investor outreach is helpful but cannot substitute for issuer accountability. Exchange guides do not create liability; filings do.

The objection—and its limit

CFO offices will cite cost and litigation risk—every English word becomes evidence in foreign courts. Fair—which is why summaries should stick to filed numbers and avoid forward-looking spin not already cleared in Korean. Lawyers can standardize safe harbor language; they cannot continue to argue English is impossible while issuers hire IR firms for roadshows in flawless slides.

Smaller Kosdaq names will say they lack staff. Phase the rule: top 200 by float first, then issuers above a foreign ownership threshold. Exemptions for micro caps, not for chipmakers moving the index.

What regulators should do

FSS should amend disclosure guidance to require English event summaries on the same DART submission screen, validated for numeric parity by checksum fields. Penalties for missing or stale English should mirror Korean late filing fines—not symbolic warnings. KRX should flag issuers without English summaries in foreign investor dashboards, the same way it flags trading halts.

Yesterday’s opinion on highway toll tables argued for live public infrastructure data; today’s argument is parallel: capital markets infrastructure is also language infrastructure. Retail inflows from Tokyo are not a novelty trade—they are structural while yen hedging costs shift.

What we are not saying

We do not demand full annual report translation—prohibitively expensive for mid caps. We demand event summaries where price moves actually start: guidance cuts, governance scandals, capital increases, split decisions. We do not ask issuers to cheerlead in English; we ask them to stop hiding behind Korean-only PDFs while happily collecting foreign orders.

If Korea wants to host more cross-border retail liquidity, it must treat English summaries as part of the filing, not an investor-relations favor. Domestic retail protected by Korean prose is not an excuse to leave overseas buyers parsing garbage translations while the won and Kospi move on headlines they never fully read.