Privacy Policy

Last updated: [5/13/2026 ]

This Privacy Policy explains how HONG KONG ZHANGHUII TECHNOLOGY LIMITED (“Company,” “we,” “us,” or “our”) collects, uses, discloses, and protects personal information when you visit our website, use our platforms, or receive our advertising technology, digital marketing, programmatic advertising, analytics, messaging, and related technical services.

By using our services, you acknowledge that you have read and understood this Privacy Policy.

1. Information We Collect

We may collect information that you provide directly to us, including your name, company name, business email address, phone number, billing information, account information, support requests, advertising materials, campaign information, and other information you choose to provide.

When we provide advertising, analytics, programmatic advertising, or platform integration services, we may process information related to campaigns, audiences, websites, apps, ads, landing pages, conversion events, performance reports, customer lists, hashed identifiers, device or browser information, IP addresses, cookie identifiers, pixel events, API events, and other technical or usage data.

If our services include Meta, WhatsApp Business Platform, Google, TikTok, Amazon, or other third-party platform integrations, we may process information required to configure, operate, support, measure, or optimize those integrations. This may include business account information, ad account information, WhatsApp Business Account information, phone number information, message template information, webhook events, delivery logs, access tokens, API request logs, and related technical data.

2. How We Use Information

We use information to provide, operate, maintain, improve, and support our services; create and manage advertising campaigns; configure third-party platform integrations; deliver and measure ads or messages; provide analytics and reporting; communicate with customers; process payments; prevent fraud, abuse, and security incidents; comply with legal obligations; and enforce our agreements and policies.

3. Customer Data and End User Data

Our customers are responsible for ensuring that they have the necessary rights, notices, permissions, and consents to provide data to us or allow us to collect or process data on their behalf. This includes data used for advertising, retargeting, custom audiences, customer lists, conversion tracking, pixels, APIs, messaging, analytics, and similar technologies.

Customers must not provide us with sensitive personal information, data from children, or any information that they are not legally permitted to collect, use, share, or process.

4. Cookies, Pixels, APIs, and Similar Technologies

We and our partners may use cookies, pixels, tags, server-to-server APIs, software development kits, local storage, and similar technologies to operate our services, measure campaign performance, understand website or app activity, create or manage audiences, prevent fraud, and improve advertising relevance.

Where required by law, customers must provide appropriate notices and obtain appropriate consent before using these technologies on their websites, apps, or digital properties.

5. How We Share Information

We may share information with service providers, advertising platforms, analytics providers, cloud hosting providers, payment processors, support tools, security vendors, professional advisers, and other partners that help us provide our services.

We may share information with third-party platforms such as Meta, WhatsApp Business Platform, Google, TikTok, Amazon, and other advertising or messaging platforms when necessary to provide services requested by our customers, including campaign management, audience creation, conversion tracking, messaging, reporting, optimization, and technical support.

We may also disclose information if required by law, legal process, government request, or to protect the rights, safety, and security of our company, customers, users, or others.

6. Data Retention

We retain personal information only for as long as reasonably necessary to provide our services, comply with legal, tax, accounting, security, and contractual obligations, resolve disputes, and enforce our agreements. Retention periods may vary depending on the type of data, service, customer agreement, and legal requirements.

7. Data Security

We use reasonable administrative, technical, and organizational safeguards designed to protect information from unauthorized access, loss, misuse, alteration, or disclosure. However, no method of transmission or storage is completely secure, and we cannot guarantee absolute security.

8. International Data Transfers

We may process and store information in countries other than the country where you are located. Where required, we use appropriate safeguards for international data transfers.

9. Your Rights and Choices

Depending on your location, you may have rights to access, correct, delete, restrict, object to, or receive a copy of your personal information. You may also have the right to withdraw consent where processing is based on consent.

To make a privacy request, please contact us using the information below. We may need to verify your identity before responding to your request.

10. Third-Party Links and Platforms

Our services may link to or integrate with third-party websites, platforms, APIs, and services. Their privacy practices are governed by their own privacy policies, and we are not responsible for their practices.