HD TELECOM

HD TELECOM SIM Service Agreement and Application Consent

Effective date:

Vietnam Bussan Co., Ltd.

Date established: September 29, 2026

Date revised: October 5, 2026

This document sets out the main conditions for applying for the SIM card, eSIM, pocket WiFi and other telecommunications services that Vietnam Bussan Co., Ltd. ("we", "us" or "our") provides under the name HD TELECOM. Applicants must agree to this document, the HD TELECOM Terms of Service for Telecommunications Services, the Explanation of Important Matters, the Privacy Policy and the individual conditions for each plan before applying.

Article 1 (Eligibility to Apply)

  1. Only individuals aged 18 or over at the time of application may apply for our services.
  2. We do not accept applications from anyone under 18.
  3. Applicants must complete the identity verification we specify and provide true and accurate information.

Article 2 (Identity Verification)

  1. We carry out identity verification to prevent fraudulent use and to take the measures required by law.
  2. We may ask applicants to submit images of the front and back of their identity document, an image showing both the applicant and their identity document, their address in Japan, their email address, their phone number and any other necessary information.
  3. Where SIMs or similar products that support voice calls or SMS require additional identity verification, we provide them once the verification we specify has been completed.

Article 3 (Administration Fee)

  1. When a new contract is made, an administration fee of ¥3,300 (tax included; ¥3,000 excl. tax) is charged once only for each SIM or eSIM line and each pocket WiFi device. The administration fee is not charged for the 12-month prepaid SIM.
  2. This fee covers the cost of the administrative work involved in a new contract, such as accepting the application, registering the contract, verifying identity and activating the service.
  3. If you cancel your application before shipping (for eSIM, before the QR code is issued), we refund the full amount, including the administration fee. In all other cases, once the contract procedures have been completed, the administration fee is not refunded, except where we state otherwise or where the law requires a refund.

Article 4 (First Bill)

  1. The first bill is the total of the first monthly charge for the plan the applicant has chosen and the administration fee (¥3,300, tax included; ¥3,000 excl. tax, per line or device). The billing start date is the order date (Japan time), and the first monthly charge is the monthly charge from the order date to the last day of that month, calculated pro rata on a daily basis (monthly charge × the number of days left in the month, including the order date ÷ the number of days in the month; amounts under ¥1 are rounded down; calculated per line or device, then multiplied by the number of lines or devices). If the order date is on or after the 25th, the full monthly charge for the following month is added. The first monthly charge covers the period from the order date to the last day of that month (or to the last day of the following month if the order date is on or after the 25th). For the 12-month prepaid SIM, there is no pro rata calculation and the first bill is the plan charge only. If the order date (Japan time) is on or after September 30, 2026, the monthly charge and plan price are tax-excluded amounts, and the first monthly charge is the pro rata amount (or, if the order date is on or after the 25th, the pro rata amount plus the full monthly charge for the following month) plus consumption tax (10%; calculated per line or device, with amounts under ¥1 rounded down). Consumption tax (10%) is likewise added to the plan price of the 12-month prepaid SIM.
  2. Example: if you apply for one line on a plan with a monthly charge of ¥3,000 (tax excluded), an order on November 10 has a first monthly charge of ¥2,310 (tax included: ¥3,000 × 21 days ÷ 30 days = ¥2,100, plus ¥210 consumption tax), so with the ¥3,300 administration fee your first bill is ¥5,610 (tax included); an order on November 25 has a first monthly charge of ¥3,960 (tax included: ¥600 for 6 days + ¥3,000 for December = ¥3,600, plus ¥360 consumption tax), so with the ¥3,300 administration fee your first bill is ¥7,260 (tax included).
  3. If SIM issuance fees, shipping fees, option charges or any other costs arise separately, we show the amounts before your application is finalized. The purchase price of a pocket WiFi device, ¥9,900 (tax included), or the rental deposit of ¥5,000 (a refundable deposit, so no consumption tax applies) is also shown before your application is finalized and is included in the first bill.
  4. From the month after the period covered by the first monthly charge ("from the second month onwards"), we will, in principle, bill the monthly charge for the chosen plan (one month's charge) and any paid options or similar services you are using. Discounts from discount codes apply to the first bill only. For contracts whose order date is on or after September 30, 2026, the monthly charge from the second month onwards is the tax-excluded monthly charge plus consumption tax (10%; calculated per line or device, with amounts under ¥1 rounded down).

Article 5 (Plans)

The monthly charge, data allowance, usage period, speed, what happens once the data allowance is used up, renewal conditions and other details are shown on our website and the application screen. Applicants must check the plan they have chosen and the amount to be billed before the contract is finalized.

Article 6 (Payment Methods)

You can pay by bank transfer or cash on delivery (paid when your SIM card or pocket WiFi device is delivered). Orders consisting only of eSIMs must be paid by bank transfer. If you pay by bank transfer, please pay within 3 days of the order date. For monthly charges from the second month onwards, please follow the payment notice we email you on or after the 25th of each month, and pay the following month's charge by bank transfer by the last day of the current month. If a payment notice is sent late, the due date is 10 days after the day it is sent. A notice is sent late if fewer than 4 days, counting the day it is sent, remain until the normal due date (the last day of the month before the month being billed), or if it is sent after the normal due date has passed. When you make the transfer, please enter your order number before your name in the sender name field. If we still cannot confirm your payment 3 days after the due date, we will email you again. If we cannot confirm your payment, we may suspend the service.

Article 7 (Use of SIMs)

The subscriber must look after and use SIM cards, eSIMs and the services properly. Communication is provided on a best-effort basis, and speed and quality vary depending on location, time of day, device, signal conditions, congestion and other factors.

Article 8 (No Resale, Transfer or Similar Acts)

Without our prior consent, the subscriber must not resell, commercially resell, transfer or sublet the services, SIM cards, eSIMs or any other product or service we provide to a third party, let a third party use them in the subscriber's name, or provide them again to a third party for profit.

Article 9 (Changes and Cancellation)

Plan changes, cancellation, the minimum term, the cancellation fee, whether charges are calculated pro rata on a daily basis and other conditions are governed by the individual conditions for each plan and the HD TELECOM Terms of Service for Telecommunications Services.

Article 10 (Relationship with Other Terms)

Matters not covered by this document are governed by the HD TELECOM Terms of Service for Telecommunications Services, the Explanation of Important Matters, the Privacy Policy and the individual conditions for each plan.

Confirmation of Application Details

Before you finalize your application, the application screen shows the following details.

  • Subscriber's name: as entered on the application form
  • Date of birth: as entered on the application form
  • Plan applied for: the name of the plan you chose
  • Monthly charge (tax excluded): the tax-excluded monthly charge of the chosen plan (shown together with the tax-included amount, i.e. plus 10% consumption tax; for contracts ordered before September 30, 2026, the previous tax-included monthly charge)
  • Administration fee (new contracts only): ¥3,300 (tax included; ¥3,000 excl. tax) per line or device (not charged for the 12-month prepaid SIM)
  • First bill (tax included): first monthly charge (the pro rata period, number of days and amount; for orders placed on or after the 25th, including the following month's charge) + administration fee (¥3,300 × number of lines or devices) + any other costs stated at the time of application (such as the device purchase price or rental deposit) (the first monthly charge is the amount with consumption tax added)
  • From the second month onwards: monthly charge + paid options or similar (if applicable)

Confirmations for Online Applications

When you apply online, you will be asked to read each of the following statements and tick the box next to it.

  1. I am aged 18 or over at the time of applying.
  2. I agree to submit the identity documents specified by HD TELECOM and the necessary information for identity verification.
  3. I acknowledge that an administration fee of ¥3,300 (tax included; ¥3,000 excl. tax) is charged once only, per line or device, when a new contract is made (except for the 12-month prepaid SIM).
  4. I acknowledge that the first bill will be "the first monthly charge for the chosen plan (the pro rata amount from the order date to the last day of that month, which, depending on the order date, also includes the following month's charge; excluding tax) + consumption tax on it (10%) + the administration fee + any other costs shown at the time of application".
  5. I have read and agree to this document, the HD TELECOM Terms of Service for Telecommunications Services, the Explanation of Important Matters and the Privacy Policy.

Vietnam Bussan Co., Ltd. / HD TELECOM

Website: https://www.hdtelecom.jp

This translation is for reference only; the Japanese version is the legally binding text.