Wallets/kb-kookmin-bank
KB Kookmin Bank
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Overview
KB Kookmin Bank is Korea's largest bank by retail customers + KB Financial Group's flagship banking subsidiary [1, 2, kr-cro]. 2025 baseline: Korea's first traditional bank to exceed 30M retail customers.
Distinctive KB Star Banking positioning [3]:
- Korea's largest bank by retail customers (30M+ retail customers; first Korean bank in banking sector to exceed this)
- KB Star Banking 2025 redesign: Focused on improving speed and convenience; provides comprehensive financial services with core services of six affiliates of KB Financial Group
- June 2025 — "Wallet" service launch on KB Star Banking: Distinctive payment + identification integration in one place (QR payment + ZeroPay + KB Pay + Health Insurance QR)
- One of the largest banks in the world historically: 60th largest globally as of 2017
History
1963 — Kookmin Bank founded by Korean government — distinctive Korean state-bank heritage origin.
2001 — Kookmin Bank + Housing & Commercial Bank merger to form modern Kookmin Bank.
2008 — KB Financial Group holding company established (KRX: 105560).
2011 — KB Star Banking app launches as KB Kookmin Bank's flagship mobile banking app.
2010s-2025 — Mass Korean digital banking expansion [2]: KB Kookmin Bank exceeds 30M retail customers (first Korean bank in banking sector).
June 2025 — KB Star Banking "Wallet" service launch [3] — distinctive payment + identification integration (QR payment + ZeroPay + KB Pay + Health Insurance QR).
Ownership & operator
Operating entity: KB Kookmin Bank (KB Financial Group subsidiary; KB Financial Group: KRX: 105560).
Major shareholders (KB Financial Group): National Pension Service (Korean state pension fund; major shareholder) + BlackRock + Vanguard + various Korean institutional + KRX public float (widely held; significant Korean institutional ownership).
Regulators: FSC (Financial Services Commission of Korea) + FSS (Financial Supervisory Service).
Technical integration
| Layer | Description |
|---|---|
| Channels | KB Star Banking app (iOS + Android; primary KR retail-banking mobile channel; Wallet service since Jun 2025) + KB Global Banking (for overseas Korean residents) + KB Pay (KB Financial Group payment arm) + KB Kookmin Bank cards (KB Card) + KB Kookmin Bank extensive Korean branch network |
| Identifiers | Phone + email + card number + Korean resident registration number |
| KR rail | zero-pay (Korea Financial Telecommunications & Clearings Institute KFTC instant payments + ZeroPay national QR; KB Star Banking Wallet QR payment + ZeroPay + KB Pay + Health Insurance QR integration) |
| License | Bank (KB Kookmin Bank full Korean banking license; Korea's largest bank by retail customers) |
| Sub-products | KB Kookmin Bank Account + KB Cards (Kookmin Card / KB Card) + KB Loans + KB Mortgage + KB Investments + KB Insurance (KB Insurance + KB Life Insurance) + KB Securities + KB Pay + KB Star Banking Wallet (Jun 2025; QR payment + ZeroPay + KB Pay + Health Insurance QR) + KB Asset Management |
| 6 KB Financial Group affiliates integrated in KB Star Banking | |
| Distinctive Wallet (Jun 2025): Payment + identification integration in one place (QR payment + ZeroPay + KB Pay + Health Insurance QR) |
Users & growth
- Korea's largest bank by retail customers (30M+ retail customers; first Korean bank in banking sector to exceed)
- KB Star Banking 2025 redesign: Improved speed + convenience; 6 KB Financial Group affiliates integrated
- June 2025 KB Star Banking Wallet service launch: QR payment + ZeroPay + KB Pay + Health Insurance QR
- 60th largest bank in world (as of 2017; historical context)
- Multi-country presence: 12 countries
Use cases
Korean + multi-country retail + corporate + investment + insurance banking via KB Star Banking + KB Global Banking + KB Pay + cards + branches; ZeroPay national QR + KFTC instant payments; distinctive Jun 2025 Wallet service (payment + identification integration: QR payment + ZeroPay + KB Pay + Health Insurance QR); 6 KB Financial Group affiliates (banking + cards + securities + insurance + asset management + life insurance) integrated in KB Star Banking.
Implementations & partners
Operator: KB Kookmin Bank (KB Financial Group subsidiary; KRX: 105560).
Major shareholders: National Pension Service (Korean state pension fund; major shareholder) + BlackRock + Vanguard + Korean institutional + KRX public float.
Major Korean banking + payment competitors:
- [[kakaobank]] (KakaoBank; Korea's largest internet-only bank; 26.7M customers end 2025; KakaoTalk integration)
- [[k-bank-korea]] (K bank Korea; 1st Korean internet-only bank; 15.5M users end 2025)
- [[toss-bank]] (Batch 33 covered; Toss Bank; 3rd Korean internet-only bank; 12M+ users end 2025)
- [[naver-financial]] (Batch 32 covered; Naver Financial / Naver Pay)
- [[kakao-pay]] (Kakao Pay; Kakao Corp's payment arm)
- Shinhan Bank + Hana Bank + Woori Bank + NongHyup Bank (NH Bank) + IBK Industrial Bank of Korea (Korean traditional banks)
- [[toss-payments]] + [[payco]] (Batch 31 covered) + [[samsung-pay]] (KR payments)
KB Financial Group sister entities: KB Kookmin Bank + KB Securities + KB Insurance + KB Life Insurance + KB Asset Management + KB Capital + KB Pay + Kookmin Card (KB Card).
Regulators: FSC + FSS + per-country (e.g., HKMA HK + OCC US + others).
Fun facts
- Korea's largest bank by retail customers — 30M+ retail customers (first Korean bank in banking sector to exceed).
- 1963 founding as Kookmin Bank by Korean government.
- 2001 Kookmin Bank + Housing & Commercial Bank merger formed modern Kookmin Bank.
- 2008 KB Financial Group holding company established (KRX: 105560).
- 2011 KB Star Banking app launch.
- June 2025 KB Star Banking "Wallet" service launch — distinctive payment + identification integration in one place (QR payment + ZeroPay + KB Pay + Health Insurance QR).
- 6 KB Financial Group affiliates integrated in KB Star Banking.
- 60th largest bank in world (as of 2017; historical context).
- Multi-country presence: 12 countries (KR + CN + HK + JP + IN + ID + VN + KH + MM + KZ + US + GB).
Comparison
| Feature | KB Star Banking | [[kakaobank]] (Korea's largest internet-only bank rival; 26.7M customers) | [[k-bank-korea]] (Korea 1st internet-only bank rival; 15.5M users) | [[toss-bank]] (Batch 33; Korea 3rd internet-only bank rival; 12M+ users) | [[hsbc-uk]] (UK Big-4 + global UK-anchored international bank comparable) |
|---|---|---|---|---|---|
| Operator | KB Kookmin Bank (KB Financial Group; KRX: 105560; National Pension Service + BlackRock + Vanguard + Korean institutional + KRX float) | KakaoBank Corp. (KRX: 323410; Kakao Corp founding parent + Korea Investment Holdings + Korean institutional + KRX float) | K Bank (BC Card KT subsidiary 34% controlling + KT + Woori Bank + NH Investment & Securities + 16 others) | Toss Bank (Viva Republica) | HSBC Holdings (LSE: HSBA + HKEX: 5 + NYSE: HSBC; widely held) |
| Type | Korea's largest bank by retail customers + KB Star Banking + 6 KB Financial Group affiliates integrated + Jun 2025 Wallet service (QR payment + ZeroPay + KB Pay + Health Insurance QR) + 12 countries | Korea's largest internet-only bank + KakaoTalk integration + ~50% Korean population reached | Korea's 1st internet-only bank + BC Card 34% controlling stake | Korea's 3rd internet-only bank | UK Big-4 + global UK-anchored international bank + First Direct subsidiary |
| Country | KR + 11 other countries | Korea | Korea | Korea | UK + 60+ countries |
| Users | 30M+ retail customers (first Korean bank in banking sector to exceed) | 26.7M customers (end 2025) + 20M MAU | 15.5M users (end 2025) | 12M+ users (end 2025) | 15M UK customers + 7M+ registered mobile banking customers + 1.7B+ logins past year |
| Distinctive | 1963 founding as Kookmin Bank by Korean government; 2001 Kookmin Bank + Housing & Commercial Bank merger; 2008 KB Financial Group holding established; 2011 KB Star Banking launch; Jun 2025 Wallet service distinctive payment + identification integration (QR payment + ZeroPay + KB Pay + Health Insurance QR); 6 KB Financial Group affiliates integrated; 60th largest bank in world (2017); 30M+ first Korean bank to exceed retail customers | 2016 KakaoBank founded by Korea Investment Holdings + Kakao Corp; Jul 2017 launch as 2nd KR internet-only bank; deep KakaoTalk integration; 2025 record results | Korea's 1st internet-only bank (Apr 2017); BC Card 34% controlling stake; KT telecom muscle; 2025 challenges (net profit -12% + NIM collapse) | Korea's 3rd internet-only bank | UK's most significant app transformation since 2012; 18-month redesign; First Direct subsidiary; Ping An Insurance historically major shareholder (reduced 2023-2024) |
Status
Active, Korea's largest bank by retail customers [2, 3]:
- KB Kookmin Bank (KB Financial Group; KRX: 105560) since 1963 (Korean government founding) / 2001 (Kookmin Bank + Housing & Commercial Bank merger) / 2008 (KB Financial Group holding established).
- 30M+ retail customers — first Korean bank in banking sector to exceed.
- KB Star Banking 2025 redesign + Jun 2025 Wallet service launch (QR payment + ZeroPay + KB Pay + Health Insurance QR).
- 6 KB Financial Group affiliates integrated in KB Star Banking.
- Multi-country presence: 12 countries.
- National Pension Service (Korean state pension fund) major shareholder.
- FSC + FSS + per-country regulated.
Sources
- 1 KB Kookmin Bank — NamuWiki
- 2 Kookmin Bank — Wikipedia
- 3 KB Kookmin Bank Revamps KB Star Banking Wallet Service Jun 2025 — 아시아경제
- 4 KB Financial Group Our History — official
- kr-cro In-corpus:
reports/countries/KR-south-korea.md
Source
Biography extracted from kb-kookmin-bank.md. See matrix.md for standards-support matrix if present.