KT Japan SIM Business
SIM Business
We provide high-quality communication with official SIM cards from KT, Korea's No.1 carrier. Our Korean information platform 'tt shop' offers great deals for Korea travel.
Market Leader
Korea's No.1 Carrier eSIM/USIM Cards
Since 2019, we have been selling KT SIM cards for Korean local data communication. We sell KT eSIM/USIM through various channels.
Instant Delivery
Within 1 Hour
Short-Term Travel SIM
We sell eSIMs with unlimited calls, SMS, data, and a Korean 010 number on 1 to 15-day plans, perfect for Korea travel and business trips. Issued online immediately after purchase for instant use.
Worry-Free Korea Travel
Stay connected with high-speed 4G/LTE data from the moment you arrive in Korea.
- check_circle Unlimited Calls, SMS & Data
- check_circle Korean 010 Number Included
- check_circle eSIM
- warning SIM unlock required
Price Plans
22% OFF
1 Day
¥700
¥900
30% OFF
2 Days
¥1,050
¥1,500
15% OFF
3 Days
¥1,450
¥1,700
20% OFF
4 Days
¥1,750
¥2,200
24% OFF
5 Days
¥2,050
¥2,700
18% OFF
6 Days
¥2,450
¥3,000
24% OFF
7 Days
¥2,600
¥3,400
29% OFF
10 Days
¥2,700
¥3,800
12% OFF
15 Days
¥3,950
¥4,500
eSIM Information
QR code delivered instantly via email. No physical card needed. Shipped within 1 hour after payment.
USIM Card
Physical SIM Card (3-5 Days)
Use your USIM card as soon as you arrive in Korea. Unlimited calls, SMS, and data included.
For Long-Term Stays
Long-Term Stay SIM
20 to 90-Day Long-Term Plans
Plans designed for study abroad, business trips, and extended travel. Unlimited calls, SMS, and data with a Korean 010 number included.
12% OFF
20 Days
¥4,500
¥5,100
13% OFF
30 Days
¥5,200
¥6,000
11% OFF
60 Days
¥8,900
¥10,000
12% OFF
90 Days
¥11,500
¥13,000
Welcome 5G Korea Study Plan
Korea's No.1 carrier KT's 5G network at rates recommended for students. No contract commitment, use freely, and stay connected with unlimited data (1Mbps~5Mbps) even after the base data allowance is used.
Pricing Plans
Welcome 1
1GB + Unlimited at 1Mbps after
200 min calls / 200 SMS
₩39,000
Welcome 3
3GB + Unlimited at 3Mbps after
200 min calls / 200 SMS
₩49,000
Welcome 5
5GB + Unlimited at 5Mbps after
200 min calls / 200 SMS
₩59,000
※ Monthly rate (tax included)
Key Features
No Contract
Cancel freely when returning home, no penalties.
Unlimited Data
Unlimited use at 1Mbps~5Mbps even after base data is consumed.
Free Calls to Japan
Free international calls to Japan (worth ₩5,500).
Korean Identity Verification
Register for KakaoPay/NaverPay, shop on Korean EC sites, unlock full app features.
Ready for Your Trip?
Purchase a SIM now on tt shop, or consult our experts about custom business solutions.