Privacy Policy.

TECH KNOWLEDGE SOLUTION VIETNAM CO., LTD. (“TKS”, “we”) treats the protection of personal information as a matter of business responsibility. This policy covers personal information we collect and use on our own account.

TKS is established in Vietnam. In providing services to customers in Japan, we handle personal information in accordance with Japan’s Act on the Protection of Personal Information (the “APPI”) and Vietnam’s Law on Personal Data Protection (Law No. 91/2025/QH15, with Decree No. 356/2025/ND-CP).

Personal data we process on a customer’s behalf is not covered here. It is covered by Personal information in work we carry out for customers.

1. What we collect, and what for

We use it for nothing else, and we do not add you to a mailing list or send unsolicited marketing.

2. Our website and the enquiry form

Our website is a static site presenting our company. Browsing it does not give us information that identifies you. Our website issues no cookies. We use no third-party analytics tools. We do not pass information to advertising networks, serve behavioural advertising, or track individuals across visits or sites.

To prevent automated bulk submissions, the form uses a bot-verification service. In the course of that check, your IP address and technical information about your browser are sent to that service’s provider. To limit repeated submissions in a short period, we also record information identifying the sender temporarily.

Alongside the enquiry itself we record the IP address, country or region, browser type and display language, to guard against fraudulent submissions and to confirm delivery.

Enquiries are stored and transmitted using external cloud services. Each is engaged only to the extent needed to deliver our own service, and none uses your information for purposes of its own. Where a provider is located outside Japan, section 6(1) applies. We will tell you which providers we use, where they operate, and what measures are in place, on request to the contact point in section 9.

3. How long we keep it

Enquiries are kept for three years after the enquiry has been dealt with, and then deleted. Other personal information is deleted or anonymised once the period needed for its purpose has passed. Where a record must be kept longer by law, that period applies.

4. Disclosure to third parties

We do not disclose your information without your consent, except where required by law, or where it is necessary to protect a person’s life, body or property and obtaining consent is difficult. We do not sell customer lists or personal information.

5. Security measures

To guard against loss, alteration or unauthorised disclosure of personal data, we take the following measures.

(1) Organisational. Defined roles and scopes of authority for staff who handle personal data, with records kept of that handling.

(2) Personnel. Confidentiality undertakings with employees, and training.

(3) Physical. Controlled entry to working areas, and restrictions on removing equipment and media.

(4) Technical. Access control by privilege, encryption in transit, collection and retention of operational logs, and separation of development, verification and production environments.

(5) Awareness of the external environment. We take account of the legal regime of the country where personal data is held when deciding on our measures.

These measures reduce risk; they do not remove all of it. Should an incident occur involving information under our control, we will investigate promptly and, where appropriate, notify those affected and report to the relevant authorities.

6. Cross-border transfer of personal data

TKS is established in Vietnam, and personal data we handle is handled by our staff in Vietnam.

(1) Where we use external cloud services

As stated in section 2, enquiries are stored and transmitted using external cloud services, some of which are located outside Japan. We engage them having confirmed that measures for the protection of personal information are maintained on a continuing basis. We will tell you which providers we use, where they operate, and what measures are in place, on request to the contact point in section 9.

(2) Where a customer entrusts personal data to us

Where a customer in Japan entrusts the handling of personal data to us, that is a provision to a third party in a foreign country under the APPI. This holds even though the arrangement is an entrustment, which is where it differs from entrusting the work to a processor inside Japan. The basis for the transfer and the measures accompanying it are set for each engagement. We provide the information a customer needs for that: the regime of the country where we are established, and the security measures we have in place. See Personal information in work we carry out for customers.

7. Requests and complaints

You may ask us to disclose, correct, add to, delete, stop using, or stop providing to third parties the personal data we hold about you. Write to the contact point in section 9. We will consider the request and respond as the law requires, and we may need to verify your identity first. Complaints may be sent to the same contact point.

For personal data we process on a customer’s behalf, please approach that customer first. See Personal information in work we carry out for customers.

8. Changes to this policy

Any change will be published on our website.

9. Company details and contact point

Effective from 20 September 2026　/　Last revised 20 September 2026

TECH KNOWLEDGE SOLUTION VIETNAM CO., LTD.