Privacy Policy
Last updated: October 8, 2026
- Effective date
- September 21, 2026
- Last updated
- October 8, 2026
- Controller
- ZHENG HE CROSS-BORDER LIMITED (Hong Kong)
- Privacy requests
- service@ezpcba.com
Table of Contents
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This Privacy Policy explains how ZHENG HE CROSS-BORDER LIMITED (“EZPCBA,” “we,” “us,” or “our”) collects, uses, shares, and stores personal information when you use https://www.ezpcba.com, related subdomains, and our quoting, ordering, RFQ, and support services (the “Services”).
We do not sell your personal information.
The controller of personal information processed under this Policy is ZHENG HE CROSS-BORDER LIMITED, Room Q, Unit 608, 6/F., Metro Loft, 38 Kwai Hei Street, Kwai Chung, N.T., Hong Kong. Privacy requests: service@ezpcba.com.
The Services are intended for businesses and adults. If you are under 16 (or the minimum age of digital consent where you live), please do not use the Services or provide personal information.
1. Information we collect
We try to collect only what we need to run the Services. If you decline required information, some features will not work.
1.1 Information you give us
| Category | Examples | When |
|---|---|---|
| Account | Email address, password (stored hashed), account type (personal / company), optional company name and profile fields | Registration, profile |
| Google sign-in | Email and basic profile Google is authorized to share. We do not receive your Google password | “Sign in with Google” |
| Delivery address | First name, last name, company, street, suite, city, U.S. state, ZIP, phone, email | Address book and checkout. We currently ship to the 50 U.S. states and the District of Columbia. |
| Orders and quotes | Board parameters, saved-quote numbers, order numbers, selected shipping option, amounts in USD, production files (Gerber, BOM, CPL, drawings) | Instant quote, save quote, checkout, RFQ |
| Payment | The fact that you paid, Stripe payment identifiers, latest payment status. We do not store full card numbers or CVV. Stripe processes the card | Checkout |
| RFQ / NDA | Company name, signer's name, title, IP, user agent, NDA version, technical questionnaire | Optional NDA and PCBA quote request |
| Support | Ticket messages, Contact Us name / email / company / phone / message, attachments you upload to a ticket | Support |
| Marketing choices | Whether you asked for product emails | When you opt in |
We do not ask for special-category data (health, race, religion, political opinions, sexual orientation). Please do not put that information in Gerber notes, tickets, or forms.
1.2 Information collected automatically
- IP address, approximate location derived from IP, browser type and version, device type, operating system, language, referring URL, pages viewed, timestamps, and diagnostic logs.
- Cookies and similar storage, as described in our Cookie Notice.
- Security and rate-limit data (for example, too many login or quote requests from an IP).
1.3 Information from third parties
- Google: if you sign in with Google.
- Stripe: payment success, failure, dispute, and refund events.
- Carriers and production suppliers: tracking numbers, production status, and shipping events needed to show order progress.
- Analytics providers: if enabled on the site (see the Cookie Notice).
2. How we use personal information
| Purpose | Typical data | Legal basis |
|---|---|---|
| Create and secure your account, including Google sign-in | Account, IP, device | Contract; legitimate interests (security) |
| Calculate quotes, save quotes, claim a guest quote after login | Parameters, files, identifiers | Contract |
| Take payment and issue refunds | Stripe identifiers, amounts, email | Contract; legal obligation (tax, accounting) |
| Engineering review, manufacture, quality, and shipping (including sharing files with production suppliers and carriers) | Files, address, order content | Contract |
| Customer support (tickets and Contact Us) | Messages, contact details | Contract; legitimate interests |
| Prevent fraud, abuse, and export-control violations | Account, order, IP, files | Legitimate interests; legal obligation |
| Improve the website and diagnose errors | Logs, usage | Legitimate interests |
| Send transactional email (order, review, quote, password, tickets) | Email, order and quote IDs | Contract |
| Send marketing email, only if you opt in | Consent (you can unsubscribe) | |
| Comply with legal requirements and handle disputes and audits | Relevant records | Legal obligation; legitimate interests |
We do not use automated decision-making that produces legal or similarly significant effects without human involvement. Engineering review of orders is performed by people.
3. How we share personal information
We share personal information only as needed:
- Manufacturing facilities and production suppliers (currently located in mainland China). They receive only what is needed to build your order, such as Gerber and related files, process parameters, quantities, and the shipping details needed to dispatch it. They do not receive your payment card data.
- Logistics partners and carriers, for DDP delivery into the United States (name, address, phone, parcel contents as required for customs).
- Stripe, to charge and refund.
- Google, if you choose Google sign-in.
- Cloud infrastructure, including object storage for production files (we use S3-compatible storage) and email delivery.
- Professional advisors (lawyers, accountants) under confidentiality.
- Authorities, when we believe disclosure is required by law, a valid legal demand, or to protect rights, safety, or the integrity of the Services.
- A buyer of our business, in a merger or asset sale, under a duty to protect the information at least as well as this Policy.
We do not share your account information with affiliated companies for their own marketing, and we do not sell personal information or share it for cross-context behavioral advertising, as those terms are defined in the CCPA/CPRA.
We may share aggregated or de-identified statistics that cannot reasonably identify you.
4. International transfers
The contracting entity is incorporated in Hong Kong, and production takes place in mainland China. Production files, order data, and account data may therefore be transferred to and processed in Hong Kong, mainland China, and other countries where our infrastructure vendors have servers (including the United States).
Data protection laws in these locations may differ from those where you live. We use contractual and technical safeguards (TLS in transit, access control, hashed passwords, signed URLs for private files) and share only what each recipient needs.
If you would prefer that your design files not be processed in Hong Kong or mainland China, please do not upload files or place an order. Instant quoting still sends parameters to our systems.
5. Retention
| Record | Typical retention |
|---|---|
| Account profile | Until you ask us to close the account, then for as long as required for the records listed below |
| Instant (unsaved) quotes | About 2 hours |
| Saved quotes | Validity window plus a short claim period (approximately 30 days after expiry) |
| Orders, invoices, refunds | Generally 7 years, or longer where required by law (tax and accounting) |
| Production files tied to an order | For as long as the related order record is kept |
| Support tickets and Contact Us | For the account relationship and a reasonable period after, unless you ask us to delete and we have no legal need to keep them |
| Security logs | A short rolling window unless needed for an investigation |
| NDA signature | For as long as we may need to show that a version was signed |
When we no longer need personal information, we delete or anonymize it. Deletion from backups follows our backup retention schedule.
6. Security
We use TLS for traffic to the Services, hashed passwords, least-privilege access for staff, encrypted storage for payment-channel credentials, and private object storage with time-limited download links for production files. Stripe is PCI-DSS compliant; card data is entered on Stripe’s pages, not on ours.
No method of transmission or storage is completely secure. Protect your password and log out on shared computers.
If a breach that requires notice under applicable law occurs, we will notify you and regulators as required.
7. Your choices and rights
Depending on where you live (for example, California, or the EEA or UK to the extent the GDPR or UK GDPR applies to our processing), you may have the right to:
- access or receive a copy of the personal information we hold;
- correct inaccurate information;
- delete information, subject to records we must keep;
- restrict or object to certain processing;
- receive the information you provided to us in a portable format;
- opt out of marketing emails (unsubscribe link in each message);
- appeal a denial of a privacy request;
- not be discriminated against for exercising a privacy right.
You can correct most profile and address data in your account. For other requests, email service@ezpcba.com. We will need to verify it is you (for example, from the account email). We respond within the time required by applicable law (generally 45 days in California and one month under the GDPR) and will let you know if an extension is needed.
You may complain to your local data-protection authority if you believe we have mishandled your information.
“Do not sell or share.” We do not sell personal information. If our use of cookies or similar technologies is ever considered “sharing” under California law, you can opt out at any time through the Do Not Sell or Share My Personal Information link in the site footer.
8. Children
The Services are not directed at children. We do not knowingly collect personal information from children under 16. If you believe we have, contact us and we will delete it.
9. Third-party sites and ads
The site may link to carriers, Stripe, Google, or documentation hosted elsewhere. Their privacy policies apply to those sites. We do not currently use third-party advertising networks on the site. If that changes, the technologies involved will be listed in the Cookie Notice.
10. Additional notice for California residents (CCPA/CPRA)
In the preceding 12 months, we may have collected the categories of personal information described in Section 1: identifiers (name, email, IP, account ID); commercial information (quotes and orders); internet activity (logs and cookies); geolocation at city/state level from IP or the address you type; professional information (company, job title if you give it); and customer files you upload (which may contain personal information if you put it there).
We collect them for the purposes in Section 2, from you, from your device, and from the third parties in Section 1.3. We disclose them to the service providers and partners in Section 3. We do not sell them. We do not use sensitive personal information for purposes other than those permitted by the CPRA (for example, we use an address to ship, not to infer characteristics).
To exercise California rights, email service@ezpcba.com. You may use an authorized agent with proof of authority. We will not retaliate against you for making a request.
11. Changes
We may update this Policy by posting a new version with a new “Last updated” date. Material changes will be highlighted on the site or emailed to the account address when the law requires notice.
12. Contact
ZHENG HE CROSS-BORDER LIMITED
Room Q, Unit 608, 6/F., Metro Loft, 38 Kwai Hei Street, Kwai Chung, N.T., Hong Kong
Email: service@ezpcba.com
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