Kunshan Lewei Microelectronics Co., Ltd.
Effective Date: July 21, 2026
1. Introduction
Kunshan Lewei Microelectronics Co., Ltd. (“we”, “us”, “our”) is a technology enterprise specializing in semiconductor materials, silicon wafers, power semiconductor chips and related technical services. This Privacy Policy sets out how we collect, use, store, disclose and protect personal information of all website visitors, customers, suppliers, partners and business contacts (collectively “you”).
We comply with applicable personal data protection laws in China, cross-border trade data compliance rules and international privacy standards. By accessing our official website, submitting inquiries, cooperating with us or purchasing our products, you fully agree to the terms of this Privacy Policy. If you do not accept these terms, please stop using our services.
2. Personal Information We Collect
We only collect necessary information related to business communication, order performance and after-sales service, including the following categories:
2.1 Information you actively provide
Basic identity information: Name, job title, company name, business address, contact phone number, email address, WhatsApp/LinkedIn account;
Business & transaction information: Purchase demand, product specification requirements, quotation records, order information, delivery address, payment records, invoice information;
Communication records: Email content, online consultation chat logs, meeting minutes, technical demand documents, sample application forms.
2.2 Information automatically collected when visiting our website
Device data: Browser type, device model, operating system, IP address, access time, page browsing records;
Cookie data: We use necessary cookies to optimize website loading speed and display product catalogs; no tracking cookies for unauthorized user profiling.
2.3 Information we will NOT collect
We will not actively collect sensitive personal data without your explicit written consent, including ID numbers, bank card details, personal medical records, private location information, etc. Payment information is processed through third-party formal payment channels, and we do not store complete payment credentials.
3. Purposes of Using Your Personal Information
We use collected personal information only for legitimate business purposes and will not use your data for irrelevant commercial marketing without separate authorization:
Respond to your product consultation, technical support, sample application and quotation requests;
Process purchase orders, arrange production, delivery, inspection reports and after-sales technical service;
Perform contractual obligations with customers, suppliers and cooperative packaging & testing manufacturers (Changdian, Jiemin, Jiequn, etc.);
Send business updates, new product catalogs, exhibition notifications and industry technical newsletters (you may unsubscribe at any time);
Conduct internal business statistics, quality tracking and supply chain management optimization;
Comply with national tax, customs, industry supervision and legal investigation requirements;
Prevent fraud, resolve business disputes and protect our legitimate corporate rights and interests.
4. Storage & Security of Personal Information
4.1 Storage Period
We retain your personal information only for the necessary business cycle:
Transaction data: Reserved for 10 years in accordance with tax and commercial record retention laws;
General contact information: Reserved within 3 years after the last communication;
If you request data deletion, we will erase your non-mandatory retention information within 15 working days upon verification of your identity.
4.2 Security Protection Measures
Internal access control: Only authorized sales, technical and administrative staff can access personal data with graded account permissions;
Data encryption: Business customer data is stored in encrypted internal servers, and cross-border email transmission adopts secure encryption protocols;
Physical & digital isolation: Customer documents, order records and inspection reports are stored in confidential office areas and cloud storage with multi-layer login verification;
Regular risk inspection: We conduct quarterly data security audits to avoid unauthorized access, leakage or loss of personal information.
5. Sharing & Disclosure of Personal Information
We will never sell, rent or trade your personal information to irrelevant third parties for commercial profit. We may share your data only in the following limited scenarios:
Authorized third-party service providers: Logistics carriers, customs agents, testing laboratories, exhibition service providers, who only process your data to complete entrusted services and are bound by confidentiality agreements;
Cooperative industrial partners: Wafer packaging & testing factories only receive necessary technical contact information under your confirmed business cooperation;
Legal mandatory disclosure: When requested by courts, tax bureaus, customs or other official regulatory authorities in accordance with legal procedures;
Enterprise asset transfer: In case of merger, acquisition or business split, the successor entity will continue to be bound by this Privacy Policy and notify you of the data transfer in advance.
For cross-border business with clients in the US, Japan, India, Russia, Hong Kong (China), Taiwan (China), we only transmit business contact data required for delivery and customs clearance, and strictly abide by cross-border data compliance regulations.
6. Your Rights Over Personal Information
You hold the following rights to your personal data at any time:
Access right: You may submit a request to obtain a copy of your personal information stored by us;
Correction right: Request us to modify incorrect contact information, company information or order data;
Deletion right: Request erasure of your contact records when our business cooperation terminates;
Opt-out right: Unsubscribe our marketing emails and product promotion messages with one-click rejection in each email;
Withdraw consent right: Revoke your previous authorization for us to use your data for marketing purposes.
To exercise the above rights, please send a written request with your company certification document to our official business email. We will reply and complete relevant processing within 10 working days.
7. Use of Cookies
Our official website uses essential functional cookies to record your browsing preferences of silicon wafers, MOSFET chips, SOI materials and other product pages, improving your next visit experience.
You can disable cookies through your browser settings at any time, but partial website functions such as online inquiry form may be affected after disabling. We do not use third-party tracking cookies to collect user data for advertising push.
8. Minors’ Information Protection
Our products and services are oriented to enterprise industrial customers, and we do not intentionally collect personal information of minors under 18 years old. If we accidentally obtain minor data without guardian consent, we will immediately delete such information after discovery.
9. Policy Updates
We reserve the right to revise this Privacy Policy according to updates of national data protection laws and business operation adjustments. All revised versions will be posted on the homepage of our official website with an updated effective date. Continued use of our website and services after the revision takes effect means you accept the updated policy.
10. Contact Us for Privacy Inquiries
If you have any questions, complaints or requests regarding this Privacy Policy and personal information processing, please contact our compliance administrator:
Company Name: Kunshan Lewei Microelectronics Co., Ltd.
Address: Yushan Town, Kunshan City, Suzhou, Jiangsu Province, China
Official Business Email: [email protected]
Contact Hotline: +8651255270797
