Effective Date: October 21, 2026

Welcome to www.electronicasteren.com (hereinafter referred to as the “Website”), operated by ELECTRONICA STEREN SA DE CV. We are deeply committed to protecting the privacy and personal data of every user who visits our platform, browses our products, and uses our e-commerce shopping services rooted in Mexico. This Privacy Policy is formulated in full compliance with Mexico’s Ley Federal de Protección de Datos Personales en Posesión de los Particulares (LFPDPPP), as well as applicable international data protection standards, to clearly explain how we collect, process, store, share, and protect your personal information, along with all the rights you hold over your personal data. When you access and use our Website to shop for our locally quality-tested phone protection, stable Type-C gear, and other daily tech products designed to fit the busy Mexican lifestyle, you confirm that you have read, understood, and agreed to all the terms outlined in this Privacy Policy.

1. Scope of Application of This Privacy Policy

This Privacy Policy applies to all personal data processing activities carried out by ELECTRONICA STEREN SA DE CV when you access, browse, register an account, place orders, contact our customer service, participate in promotional activities, or use any other functions and services provided on www.electronicasteren.com. This policy does not apply to services provided by third parties that are linked or integrated into our Website. When you click on external hyperlinks on our Website to access third-party platforms, or use third-party payment tools, social media sharing functions, or other third-party services embedded in our site, the data processing rules of those third parties will apply. We strongly recommend that you carefully review the privacy policies of those third parties before using their services, as we do not assume any responsibility for the personal data protection practices of such external entities.

Our service is designed specifically for users in Mexico, but if you access our Website from other regions, please note that your personal data may be transferred to or processed in Mexico, where data protection laws may differ from the regulations in your local jurisdiction. By using our services from outside Mexico, you explicitly consent to the processing and transfer of your data in accordance with this Privacy Policy and applicable Mexican data protection laws.

2. Collection, Processing and Usage of Your Personal Data

We only collect the minimum necessary personal data that is directly required to deliver our e-commerce services, optimize your shopping experience, and fulfill our legal obligations, strictly adhering to the principle of minimization. The categories of personal data we collect and the corresponding usage scenarios are as follows:

2.1 Information You Voluntarily Provide to Us

• ‌Account Registration Information‌: When you create a user account on our Website, we will collect your full name, valid email address, mobile phone number, and a secure password you set. This information is used to verify your identity, manage your account, provide order tracking services, and send important service notifications related to your account.
• ‌Order and Fulfilment Information‌: When you place an order to purchase phone cases, Type-C cables, adapters or other products from our store, we will collect your shipping address, consignee name, contact phone number, and preferred delivery method. This data is exclusively used to process your order, arrange local delivery across Mexico, and ensure that your purchased products can be accurately delivered to you. We also collect necessary payment information such as transaction records, but we do not store complete bank card details on our local servers — all payment processing is completed through certified third-party payment service providers that meet Mexican payment security standards.
• ‌Customer Service and Communication Information‌: When you contact our support team via email at zeroco@electronicasteren.com, submit a consultation form on our Website, or send us feedback about our products and services, we will collect the content of your messages, your contact information, and relevant order details. This information is used to resolve your inquiries, address after-sales issues, and continuously improve the quality of our customer service.
• ‌Event and Promotion Participation Information‌: If you choose to participate in our promotional campaigns, loyalty programs, in-store pick-up events or product experience activities we hold across Mexico, we may collect additional information such as your attendance status, product preferences, and feedback on our activity arrangements, to tailor more suitable preferential offers and activity plans for you.

2.2 Information Automatically Collected When You Use Our Services

When you browse our Website, our systems will automatically collect non-sensitive technical information to ensure the stable operation of our platform and optimize your shopping experience, including your device model, operating system version, unique device identifier, IP address, browser type, browsing time stamps, pages you viewed, search keywords you entered on our site, click operation logs, and other anonymous service usage data. This information helps us analyze platform operation trends, prevent fraud and unauthorized access, and adjust our product display logic to better fit the daily usage habits of local Mexican users.

2.3 Sensitive Personal Data Processing Rules

In accordance with the provisions of Mexico’s updated LFPDPPP, sensitive personal data including health information, biometric data (such as facial recognition data, fingerprints), religious beliefs, political affiliations, and other information that may lead to discriminatory risks will only be processed under strict conditions. We will never actively collect any sensitive personal data from you without your explicit written, signed consent. If for any exceptional service scenario we need to process your sensitive personal data, we will first obtain your separate written explicit consent, strictly limit the processing scope to the specific purpose you agreed to, and ensure the processing fully complies with the necessity and minimum duration requirements stipulated by law.

We will never use your personal data for purposes that are not explicitly stated in this Privacy Policy, without obtaining your separate additional consent in advance. If you wish to submit a request to delete any of your personal data we hold, you can contact us through the channels specified in Section 6 of this policy at any time, and we will process your request in accordance with applicable legal requirements.

3. Protection, Storage and Deletion of Your Personal Data

We have implemented comprehensive technical and organizational security measures to protect all your personal data we hold, to prevent unauthorized access, theft, tampering, damage, loss or leakage of your information:

• All personal data stored on our servers is encrypted using industry-standard AES-256 encryption technology during both transmission and storage processes. Our Website uses HTTPS secure transmission protocols for all data interactions, to ensure that your information cannot be intercepted by unauthorized third parties during transmission over the public network.
• We have established strict internal data access permission control mechanisms: only a limited number of authorized employees who need to process your data to fulfil their work responsibilities (such as order processing staff, customer service team, and data security administrators) have access to your personal data, and all access operations are fully logged and audited regularly. All our relevant employees have signed strict data confidentiality agreements, and any unauthorized processing of your personal data will trigger strict disciplinary and legal liability procedures.
• We conduct regular security vulnerability scans, system updates, and data backup operations for our servers located in Mexico, to ensure that our systems can resist common cyber security threats. In the event of an unexpected personal data security incident that may pose a high risk to your rights and interests, we will notify you and the Mexican data protection authority INAI within 72 hours after we discover the incident, in full compliance with legal reporting requirements.

We will only retain your personal data for the period necessary to achieve the specific purposes stated in this Privacy Policy, including the period required to complete the order fulfillment, resolve after-sales disputes, fulfil our legal tax and commercial record retention obligations under Mexican laws, and respond to any legal claims. Once the required retention period expires, we will securely anonymize or permanently delete your personal data in accordance with applicable data disposal specifications.

4. Rules for Sharing Your Personal Data with Third Parties

We will never sell, rent, or trade your personal data to any unrelated third parties for marketing purposes without your explicit separate consent. We may only share your personal data with trusted third parties under the following limited circumstances:

• ‌Necessary Sharing with Service Providers‌: We may share the minimum necessary information (such as your shipping address and contact phone number) with our partnered local logistics and courier companies across Mexico, solely for the purpose of delivering your ordered products to you. We may also share necessary payment transaction information with our certified third-party payment service providers, to complete the payment processing for your orders. All the third parties we cooperate with have signed strict data processing agreements with us, requiring them to comply with the same level of data protection standards as required by Mexican LFPDPPP, and they are not allowed to process your personal data for any purposes other than the services they provide for us.
• ‌Legal Mandatory Disclosure‌: We may disclose your personal data if we are required to do so by a valid legal order, judicial subpoena, or mandatory request from a Mexican government regulatory authority with competent jurisdiction, to protect our legitimate legal rights, property safety, or the personal safety of our users and the public.
• ‌Business Transfer Scenarios‌: In the event of a merger, acquisition, asset restructuring, or sale of all or part of our business assets, your personal data held by us may be transferred to the successor entity of the business. We will require the new entity that holds your personal data to continue to abide by the terms of this Privacy Policy, and we will notify you in advance before the transfer of your personal data takes place.

5. Usage of Cookies

Our Website uses Cookies and similar tracking technologies to enhance your browsing experience on our platform. Cookies are small text files that are stored on your local device when you visit our Website, which do not carry any personal information that can directly identify your specific identity. We use Cookies for the following purposes: to remember your login status, so that you do not need to re-enter your account password when you revisit our Website; to remember your product preference settings, such as your preferred currency and shipping region, to avoid repeated configuration during your next visit; to analyze the traffic access situation of our Website, to help us optimize the page layout and product display logic to better fit the usage habits of local users in Mexico.

You can manage or disable Cookies through the setting options of your own browser at any time. However, please note that if you choose to disable Cookies, some functional modules of our Website may not operate normally, which may affect your normal shopping experience on our platform.

6. Your Rights Over Your Personal Data

Under the Mexican LFPDPPP and applicable data protection regulations, you enjoy the complete set of rights over your personal data we hold:

• ‌Access Right‌: You can submit a request to us to obtain a copy of all your personal data we hold, as well as a detailed list explaining how we process your information.
• ‌Correction Right‌: If you find that any personal data we hold about you is inaccurate or incomplete, you can request us to correct and update your information free of charge.
• ‌Deletion Right‌: You can request us to permanently delete all or part of your personal data we hold, under the conditions stipulated by applicable law. We will process your request as soon as possible, subject to the legal retention requirements that we must comply with for tax, commercial records or ongoing legal dispute resolution scenarios.
• ‌Objection Right‌: You can object to our processing of your personal data for direct marketing purposes such as personalized recommendation of products and promotional activities at any time, and we will immediately stop processing your information for such purposes after receiving your request.
• ‌Restriction of Processing Right‌: You have the right to request us to restrict the processing of your personal data, under the conditions specified by applicable data protection laws.

You can submit any of the above requests at any time by sending an email to our designated data protection contact address: zeroco@electronicasteren.com, or sending a written request to our physical mailing address: Biólogo Maximino Martínez No. 3408, Col. San Salvador Xochimanca, Azcapotzalco, Ciudad de México, C.P. 02870, Mexico. We will verify your identity after receiving your request, and respond to your application within the time period stipulated by Mexican law, without charging any additional fees for processing your legitimate request. If you are not satisfied with our response to your request, you also have the right to submit a complaint to the Mexican National Institute of Transparency for Access to Information and Personal Data Protection (INAI).

7. Cross-Border Data Transmission

All personal data we collect through our Website is primarily stored on servers located within the territory of Mexico. In principle, we will not transmit your personal data to any third countries or regions outside of Mexico without complying with the cross-border data transmission provisions of LFPDPPP. If in the future we need to carry out cross-border transmission of your personal data for necessary service operation requirements, we will ensure that the destination country or region can provide an adequate level of personal data protection that meets Mexican legal standards, or we will obtain your separate explicit written consent for such cross-border transmission in advance. We will never arbitrarily transfer your personal data outside of Mexico without fulfilling the required legal compliance procedures.

8. Updates to This Privacy Policy

We may update and adjust the terms of this Privacy Policy from time to time, to adapt to the changes of our service functions, comply with the latest revisions of Mexican data protection laws and regulatory requirements, or respond to the feedback of our users. When we make updates to this Privacy Policy, we will post the revised version on this page of our Website, clearly mark the new effective date, and take appropriate measures such as posting prominent notifications on our Website homepage, or sending you a notification via email, to inform you of the changes of the policy. The updated Privacy Policy will take effect on the date marked in the revised version. Your continued access and use of our Website services after the effective date of the revised Privacy Policy will be deemed as your confirmation and agreement to the revised terms of the policy. We recommend that you check this page regularly to stay informed about the latest terms of our privacy protection rules.

9. Contact Information

If you have any questions, comments, or concerns about this Privacy Policy, or any issues related to our personal data processing practices, please feel free to contact us through any of the following channels:

• Company Name: ELECTRONICA STEREN SA DE CV
• Website: www.electronicasteren.com
• Contact Email: zeroco@electronicasteren.com
• Physical Address: Biólogo Maximino Martínez No. 3408, Col. San Salvador Xochimanca, Azcapotzalco, Ciudad de México, C.P. 02870, Mexico
• Contact Phone Number: +52 55 5234 3764

Our dedicated data protection team will respond to your inquiries as soon as possible within a maximum period of 15 working days after receiving your message.

At ELECTRONICA STEREN SA DE CV, we always regard the protection of your personal privacy as our top priority. All our product designs and service operations rooted in Mexico are built on the foundation of trust with our local users, and we will continue to take strict security measures to safeguard the safety of your personal data, so that you can shop for our durable daily tech products with complete peace of mind.