LG U+ — vendor dossier

LG U+

NetworkingQKDEnabling supply chain
L

South Korea's third mobile carrier and a subsidiary of LG Corporation (KOSPI:032640). LG U+'s quantum-safe networking has centred on post-quantum cryptography (PQC) more than QKD: in April 2022 the company launched what it described as the world's first commercial PQC-protected dedicated-line service for enterprise customers, building on a 2020 PQC pilot connecting LG Innotek's Pyeongtaek plant to a Busan data centre and Eulji Medical Center. QKD activity exists alongside the PQC line but is smaller-scale than SK Telecom's or KT's; LG U+'s broader quantum work also includes D-Wave quantum-annealing trials for 6G non-terrestrial network planning.

HQ
Seoul, South Korea
Founded
1996
Status
public
Last verified
Wed May 20 2026 08:00:00 GMT+0800 (Singapore Standard Time)

Timeline

2020202120222023202420252026202720282029today
2020-12
LG U+ pilot applies PQC to a 640 km dedicated line connecting LG Innotek's Pyeongtaek plant to a Busan data centre, plus a dedicated line to Eulji Medical Center
2022-04
LG U+ launches commercial PQC-protected dedicated-line service — described as the world's first commercial PQC line; built with Seoul National University's CryptoLab
2023
LG U+ partners with KAIST and Qunova Computing on a D-Wave-powered 6G low-earth-orbit satellite network study
Founded 1996 shipped milestone public roadmap

Current flagship

PQC-protected dedicated-line service — Commercial PQC line for enterprise customers; 300G private-line equipment with embedded PQC and Q-ROADM optical transmission

Milestones

  1. 2023
    LG U+ partners with KAIST and Qunova Computing on a D-Wave-powered 6G low-earth-orbit satellite network study
    Networking press source ↗
  2. 2022-04
    LG U+ launches commercial PQC-protected dedicated-line service — described as the world's first commercial PQC line; built with Seoul National University's CryptoLab
    Enabling supply chain press source ↗
  3. 2020-12
    LG U+ pilot applies PQC to a 640 km dedicated line connecting LG Innotek's Pyeongtaek plant to a Busan data centre, plus a dedicated line to Eulji Medical Center
    Enabling supply chain press source ↗

Roadmap

No public roadmap recorded.

Capability details

QKD

Protocols
BB84
Rate vs distance
—

Networking

Role
operator
Products
PQC-protected dedicated-line service (commercial, since April 2022), 300G-capacity private-line equipment with embedded PQC; integrated with LG U+'s Q-ROADM optical transmission for end-to-end multi-layered quantum-safe service
6 unverified fields
  • modalities.qkd.deployed_demos — LG U+'s public quantum-safe footprint is dominated by PQC rather than QKD; QKD trials with IDQ devices are referenced in Korean trade press but specific link distances and key rates are not consistently disclosed in English-language sources.
  • modalities.qkd.rate_distance
  • shareholders — Per-holder percentages not pulled from LG U+'s latest annual report for this dossier; LG Corp.'s controlling stake is the only structurally significant block.
  • revenue
  • headcount
  • business_units."LG U+ Quantum Computing TF".lead — Lead of LG U+'s quantum task force is not separately named on the company's public English-language pages.

People

  • Hong Bum-shik — President & CEO (since 2025) ↗

References