Now in private development

Korea's public data, turned into sales signals.

Yetty reads Korean government filings, permits and regulatory notices every day and turns them into timely, verified signals for B2B teams. You'll know which companies need you, and why now.

Dailyrefresh from public sources
Source-linkedevery signal is traceable
Company-levelno personal data
Today's signals SAMPLE
Gyeonggi SouthManufacturing
  • New emission facility permit approved

    Metal parts manufacturer · Hwaseong

    PermitAir emissions
    Amatch
  • Factory expansion registered (+3,200 m²)

    Electronic components · Pyeongtaek

    ExpansionConstruction
    Amatch
  • Municipal inspection plan published

    Industrial complex · Siheung

    NoticeCompliance
    —area
  • Wastewater facility change reported

    Chemical processing · Ansan

    Change filingWater
    Bmatch
Illustrative example. Not real company data.
The problem

The data is public. Turning it into intelligence is the hard part.

Every day, Korean agencies publish records showing which companies are building, expanding, changing facilities or facing new compliance requirements. For a B2B seller, each record is a buying signal. Almost nobody can use them.

243

Local governments

Each one publishes notices on its own website, in its own format, on its own schedule.

HWP · PDF · HTML

Unstructured formats

Key facts sit inside Korean-language documents written for compliance, not for analysis.

No common ID

Hard to match

The same company shows up under different names and addresses across sources.

How it works

From a government notice to a signal you can act on.

Yetty collects records daily, uses AI to read and structure them, matches each one to the right company and delivers it with the source attached.

01Collect
notice.hwp
○○시 공고 제2026-○○○호

「대기환경보전법」 제23조에 따라 아래와 같이 배출시설 설치허가를 하였음을 공고합니다.

• 사업장: ○○정밀(주)
• 소재지: ○○시 ○○읍 ○○리 123
• 시설: 도장시설 2기

02Understand · Claude
// structured extraction { "event": "emission_permit", "law": "Clean Air Conservation Act §23", "company": "○○정밀(주)", "parcel": "PNU 41590…", "facility": "painting", "units": 2, "match_conf": "A" }
03Deliver
PermitAir emissions

New painting facility permitted at a precision-parts maker

Why now: new emission facilities typically need prevention equipment, regular emissions measurement and waste handling.
Linked to the original public notice

Simplified illustration. Names and identifiers are placeholders.

Who it's for

For teams whose next customer just showed up in a public record.

Environmental services

Pollution control, emissions measurement and waste management providers.

Facility contractors

Fire safety, electrical and telecom contractors who serve new and expanding sites.

Industrial suppliers

Equipment and materials vendors selling to manufacturers in Korea.

Advisors & investors

Firms that want early, data-driven views of company activity.

Technology

AI-native, built on Claude.

Yetty's pipeline is designed around Anthropic's Claude, from engineering to production. Claude does the part that used to need a person: reading messy Korean documents and deciding what they mean.

  • Reliable on long, dense Korean documents
  • Structured output we can validate and trust
  • Built to scale with prompt caching and batch processing
01

Document understanding

Turns HWP, PDF and HTML notices into clean, structured event records.

02

Entity resolution

Standardizes Korean company names and addresses and matches records across sources, with a confidence grade.

03

Signal briefs

Writes short, factual summaries of what changed and why it matters now.

04

Engineering with Claude Code

Our collectors, data validation and research tooling are built with Claude Code.

Principles

Responsible by design.

Trustworthy data is the product, so we hold ourselves to clear rules.

Public sources only

Official government data and open registries, used within each source's terms.

No personal data

Company-level signals only. We never collect or sell personal contact details.

Traceable facts

Every signal links to its public source and shows how confident each match is.

Compliant by default

Designed around Korean privacy and anti-spam law, including the Network Act.

Find your next customer before your competitors do.

We're opening early access to a small group of B2B teams in Korea. Tell us what you sell and who you sell to.