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Lemeng SiliconeCustom Silicone Manufacturing
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Protecting Customer Engineering Information

Confidential Project Information

This notice explains a project-specific approach to CAD files, drawings, specifications, samples, product concepts, and testing documents. It does not promise absolute confidentiality or replace an agreed NDA, data-processing term, or secure-transfer procedure.

Document control
Last Updated
August 10, 2026
Responsible Department
Engineering / Quality / IT / Legal
Scope
CAD, drawings, specifications, samples, concepts, and technical records
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Lemeng Silicone is the English B2B brand and website operated by Guangdong Huayang Industrial Co., Ltd. Guangdong Huayang Industrial Co., Ltd. is the legal entity responsible for manufacturing operations, business communications, and RFQ data processing.

Pending confirmation: The verified legal entity is published below. Project-file retention, approved secure-transfer channel, storage location, access roles, service providers, incident contact and deletion/return procedures remain pending confirmation. Do not send unusually sensitive files until a project-specific channel is agreed.

00 / Verified identity

Who Operates This Website?

Legal EntityGuangdong Huayang Industrial Co., Ltd.
BrandLemeng Silicone
Data ControllerGuangdong Huayang Industrial Co., Ltd.
Company AddressBuilding 1, No. 3, Wanfeng Industrial Road
Qishi Town
Dongguan City
Guangdong Province
China
Postal CodePending Confirmation
01 / Scope

What Does Project-Specific Confidentiality Mean?

Confidentiality controls should be selected according to the information, project stage, customer requirements, contract, legal obligations, technical systems, and identifiable risk. Not every inquiry needs the same controls, and not every channel is suitable for sensitive engineering information.

This notice applies to project information submitted through approved website forms, file-upload tools, email, collaboration systems, physical delivery, meetings, and other agreed channels. Personal data within project files is also governed by the Privacy Policy.

02 / Information

Which Project Materials May Need Protection?

Design FilesCAD models, drawings, dimensions, tolerances, assemblies, part geometry, and revision histories.
RequirementsSpecifications, applications, materials, performance targets, target markets, quality plans, and packaging.
Physical MaterialsSamples, prototypes, tooling, inserts, competitor references, failed parts, and approved comparison parts.
Project RecordsProduct concepts, DFM notes, quotations, test documents, inspection records, approvals, volumes, timelines, and communications.

Information may be confidential even if it is not marked. However, customers should clearly identify sensitive items, permitted uses, disclosure limits, and required controls.

03 / Before transmission

What Should Be Confirmed Before Uploading Files?

  1. Authority: confirm you own or are authorized to share the information.
  2. Minimum necessary scope: remove unrelated personal data, hidden layers, metadata, credentials, unrelated projects, and unnecessary commercial information.
  3. Classification: identify confidential, restricted, export-controlled, regulated, or third-party material.
  4. NDA status: agree whether an NDA or other confidentiality term is required before disclosure.
  5. Approved channel: obtain the secure upload or transfer route and file requirements from the project contact.
  6. Handling instructions: state access, geographic, provider, copying, sample, return, deletion, and retention restrictions.
Do not use a general website form for highly sensitive files until the project contact confirms the approved channel. A form confirmation does not prove that an NDA, restricted workspace, or special retention rule is active.
04 / Workflow

How Should Confidential Project Information Move Through the Project?

01 / IDENTIFY

Classify

Identify the information, owner, project, sensitivity, permission, and required agreement.

02 / AUTHORIZE

Approve Channel

Confirm the recipient, transfer route, file type, size, encryption, and access conditions.

03 / RECEIVE

Register

Associate the file or sample with the correct inquiry, project, revision, source, and status.

04 / REVIEW

Limit Use

Provide access only to approved commercial, engineering, tooling, quality, or production roles.

05 / CONTROL

Manage Changes

Track revisions, transfers, approvals, copies, external support, and project decisions where required.

06 / CLOSE

Retain or Dispose

Apply the approved retention, return, deletion, archival, backup, and evidence instructions.

05 / Purpose

How May Project Information Be Reviewed and Used?

Subject to applicable agreements, project information may be used only as reasonably needed to evaluate and perform the requested business purpose, such as feasibility review, quotation, DFM, material/process selection, tooling, sampling, testing, inspection, quality planning, production, packaging, documentation, and communication.

Project access does not grant a right to use the information for unrelated products, public case studies, marketing, disclosure to other customers, or intellectual-property filings. Any broader use requires an appropriate legal basis and written authorization.

06 / Systems

How Should Files Be Stored and Accessed?

Controls may include role-based access, named project folders, authentication, access logs, encrypted transfer or storage where supported, backups, device controls, malware scanning, version control, confidentiality obligations, and restricted administrative access.

Project information control matrix
InformationTypical AccessRequired Project Decision
RFQ and commercial briefAuthorized sales, project management, commercial and engineering reviewers.Project owner, access group, CRM/form record, confidentiality status.
CAD and drawingsAssigned engineering, tooling, quality, and approved production roles.Approved channel, revision control, download/copy limits, external conversion/tool access.
Testing and quality recordsAssigned engineering, quality, laboratory/provider, and customer-facing roles.Sample identity, report owner, release permission, retention, customer access.
Physical samples and toolingAuthorized receiving, engineering, tooling, quality, production, and storage roles.Label, custody, photography, destructive testing, return, disposal, and ownership.

The production workflow must document actual systems and providers. This notice does not claim that every listed technical control is active for every channel.

07 / Disclosure

How Is Confidential Communication and External Sharing Managed?

Project communication should use approved recipients, business accounts, controlled distribution, accurate subject/project references, and only the information needed for the decision. Forwarding, personal accounts, public links, uncontrolled messaging, or broad group access should be avoided for sensitive data.

Information may need to be shared with an affiliated manufacturing entity, toolmaker, material supplier, laboratory, logistics provider, software/file service, adviser, or other approved participant. Before sharing, the project owner should confirm the purpose, minimum scope, confidentiality obligation, security, location, retention, and whether customer consent is required.

No customer name, logo, drawing, product image, project detail, test result, or outcome should be published as a case study without permission and evidence review.

08 / Physical property

How Are Samples, Prototypes, and Tooling Handled?

Physical items should be identified with the correct project and status, stored in an appropriate location, and accessed only for the agreed purpose. The project should define ownership, permitted inspection, photography, measurement, disassembly, destructive testing, modification, shipment, subcontracting, return, retention, or disposal.

Do not send hazardous, contaminated, regulated, restricted, or unusually valuable items without prior acceptance and handling instructions.

09 / Lifecycle

When Are Project Materials Retained, Returned, or Deleted?

The project-specific rule should consider quotation status, active development, production and quality records, legal/contractual obligations, intellectual-property evidence, disputes, backup cycles, supplier records, and customer instructions. Deletion may not immediately remove encrypted backups or records that must be retained by law or contract.

The production workflow must define:

  • Retention period or decision criteria for unsuccessful inquiries, quoted projects, active projects, completed projects, and dormant accounts.
  • Who may approve return, deletion, anonymization, archival, or continued retention.
  • How physical samples, tooling, copies, derivatives, converted files, and external-provider records are handled.
  • How completion is documented and communicated when required.
10 / Rights

How Are Intellectual-Property Rights Treated?

Ownership, licenses, tooling rights, background intellectual property, project developments, improvements, drawings, CAD, molds, samples, test methods, and production know-how must be addressed by the applicable written agreement. Confidentiality and intellectual-property ownership are related but not identical.

Submitting information does not automatically transfer customer ownership to the Company. It also does not confirm that the information is non-infringing, that a design is patentable, that freedom to operate exists, or that project developments will be assigned. Obtain appropriate legal advice and use specific contract language.

11 / Security

How Are Security Concerns and Incidents Handled?

Reasonable measures can reduce risk but cannot guarantee absolute confidentiality, security, availability, or deletion. Email can be misaddressed; credentials can be compromised; providers can fail; devices can be lost; and authorized recipients may make mistakes.

If a file was sent to the wrong recipient, a link was exposed, credentials are suspected, or confidential information may have been accessed improperly, notify the approved project/security contact promptly. The response may include containment, access revocation, evidence preservation, investigation, customer communication, provider coordination, legal assessment, remediation, and required notifications.

12 / Limitations

What Are the Limits of This Confidentiality Notice?

This notice describes a management approach; it is not a confidentiality agreement and does not override a signed NDA, data-processing agreement, purchase order, quality agreement, supply contract, law, court order, regulatory duty, or third-party right. If documents conflict, the applicable written agreement and mandatory law control.

Absolute secrecy is not promised. Information may be retained or disclosed where authorized by the customer, necessary to perform the project, required by law, needed to protect legal rights, already lawfully known, independently developed, or lawfully obtained from another source, subject to the governing agreement and law.

Request a Confidential Project Channel

Before sending sensitive CAD, drawings, specifications, samples, or test documents, contact the approved project team and state the required NDA, access, transfer, storage, location, retention, and deletion conditions.

Project Contact
Pending Confirmation
Security / Confidentiality Contact
Pending Confirmation
Secure Upload Channel
Pending Confirmation
Legal Entity
Pending Confirmation

This prototype is an operational and legal-review framework, not a guarantee or legal advice. The final process must match the actual people, systems, providers, contracts, countries, and project risks.

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Lemeng Silicone is the English B2B brand and website operated by Guangdong Huayang Industrial Co., Ltd. Project information is handled according to the applicable privacy and confidentiality notices.

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