Share this article
South Korean Telecoms Giant KT Has Built Its Own Blockchain
The second largest mobile carrier in South Korea has launched its own blockchain network and aims to apply the tech across several sectors.
By Wolfie Zhao
Updated Sep 13, 2021, 8:12 a.m. Published Jul 24, 2018, 12:00 p.m.
Make us preferred on Google
KT Corporation, one of the two largest telecoms companies in South Korea, has launched a proprietary blockchain network, aiming to apply the technology across areas including ID verification, data roaming and energy trading.
According to a report from CoinDesk Korea, the firm revealed its KT Network Blockchain on Tuesday, boasting a throughput of 2,500 transactions per second (TPS) thanks to an integration with its existing high-speed commercial network.
STORY CONTINUES BELOW
Don't miss another story.Subscribe to the Crypto Daybook Americas Newsletter today. See all newsletters
The company further claims it can scale up that figure to 10,000 TPS by the end of the year and even as high as 100,000 TPS by 2019.
With the launch, KT said it is now looking to employ the technology to authenticate users' identities in order to streamline international roaming services. The feature would allow users' information to be securely shared among global partners over a distributed network.
For the first stage of the plan, the telco said it will work with China Mobile and Japanese mobile operator NTT DoCoMo to start exploring the tech in international data roaming within the year.
KT Network Blockchain is also expected to play a role in energy trading in the second half of the year, with corporations participating as nodes to exchange unused energy quotas across the distributed network.
Today's announcement follows a plan – announced by KT in April – to use a new telecommunications system integrated with blockchain security solutions as part of a digital infrastructure project dubbed "Future Internet."
Network cables image via Shutterstock
More For You
KuCoin captured a record share of centralised exchange volume in 2025, with more than $1.25tn traded as its volumes grew faster than the wider crypto market.
What to know:
- KuCoin recorded over $1.25 trillion in total trading volume in 2025, equivalent to an average of roughly $114 billion per month, marking its strongest year on record.
- This performance translated into an all-time high share of centralised exchange volume, as KuCoin’s activity expanded faster than aggregate CEX volumes, which slowed during periods of lower market volatility.
- Spot and derivatives volumes were evenly split, each exceeding $500 billion for the year, signalling broad-based usage rather than reliance on a single product line.
- Altcoins accounted for the majority of trading activity, reinforcing KuCoin’s role as a primary liquidity venue beyond BTC and ETH at a time when majors saw more muted turnover.
- Even as overall crypto volumes softened mid-year, KuCoin maintained elevated baseline activity, indicating structurally higher user engagement rather than short-lived volume spikes.
More For You
XRP drops 4% as traders watch whether $1.88 support holds
Price stabilizes near recent lows after a volatile pullback from above $2.
What to know:
- XRP slipped nearly 4% as bitcoin fell below $88,000, with price action driven more by market structure and positioning than by changes to Ripple’s fundamentals.
- Spot XRP ETFs saw about $40.6 million in weekly outflows, suggesting institutional profit-taking and rotation rather than a loss of confidence in the asset.
- XRP remains range-bound in a tight consolidation between support around $1.88 and resistance near $1.93–$1.95, with fading volume pointing to a larger move once the current stalemate resolves.
Top Stories
