Terms Of Use

Last Updated: August 24, 2026

Welcome to Havllisan. These Terms of Use apply to your access to and use of our website, online store, content, features, and related services.

Havllisan is operated by Hong Kong Gastech Engineering Limited.

By visiting, browsing, accessing, or using our website, you agree to these Terms of Use, together with our Privacy Policy, Terms of Purchase, Shipping Policy, Return & Refund Policy, and any other policies displayed on our website.

If you do not agree with these terms, please stop using our website.

Eligibility

By using our website, you confirm that you are at least the age of legal majority in your location or that you are using the website with the permission and supervision of a parent or legal guardian.

You may not use our website or services for any illegal, fraudulent, abusive, or unauthorized purpose.

Data Accuracy

You agree that all information you provide to Havllisan is accurate, complete, and current.

This may include:

  • Account information

  • Contact information

  • Billing information

  • Shipping information

  • Payment information

  • Order details

  • Customer-service communications

You are responsible for correcting or updating your information when necessary.

Havllisan is not responsible for delays, failed deliveries, returned packages, or other problems caused by incorrect, incomplete, or outdated information provided by the customer.

Privacy Policy

Your personal information is collected, processed, stored, and disclosed according to our Privacy Policy.

By using our website or services, you acknowledge that your information may be processed by Havllisan, Shopify, payment providers, shipping providers, analytics services, customer-service platforms, and other service providers needed to operate our business.

Please review our Privacy Policy for more information.

Website Access and License

Havllisan grants you a limited, personal, non-exclusive, non-transferable, non-commercial, and revocable license to access and use this website for lawful shopping and informational purposes.

This license does not transfer ownership of any website content or intellectual property to you.

Havllisan may modify, suspend, restrict, or terminate access to any part of the website at any time.

Prohibited Uses

You may not:

  • Copy or use website content for unauthorized commercial purposes

  • Reproduce, modify, distribute, sell, license, or publish our content

  • Use scraping tools, robots, crawlers, data-mining tools, or automated systems

  • Attempt to gain unauthorized access to accounts, systems, or restricted areas

  • Interfere with website security, functionality, or performance

  • Upload viruses, malware, harmful code, or malicious files

  • Use the website to transmit spam or unsolicited communications

  • Impersonate another person or provide false information

  • Commit fraud or attempt an unauthorized transaction

  • Collect personal information about other users

  • Use the website in a way that creates an unreasonable system load

  • Bypass security, access controls, or usage restrictions

  • Use our content, products, or services for unlawful purposes

  • Violate intellectual-property, privacy, publicity, or other rights

  • Encourage another person to violate these Terms of Use

Havllisan may investigate suspected violations and may suspend or terminate access without notice.

Product Information

We make reasonable efforts to present product descriptions, dimensions, colors, features, images, and specifications accurately.

However:

  • Colors may appear differently depending on your screen or device

  • Measurements may have small manual variations

  • Product packaging may change

  • Product images may include display items that are not included

  • Minor design details may vary between production batches

  • Product availability may change without notice

Please review all product information carefully before placing an order.

Prices and Availability

All prices are displayed in the currency selected on the website or at checkout.

Prices, promotions, discounts, product availability, and shipping fees may change at any time without notice.

We reserve the right to:

  • Correct pricing errors

  • Update product information

  • Limit product quantities

  • Discontinue products

  • Cancel orders affected by obvious errors

  • Refuse suspicious or unauthorized transactions

Adding a product to your cart does not reserve the product or guarantee its price or availability.

User Accounts

Some website features may allow you to create a customer account.

You are responsible for:

  • Maintaining the confidentiality of your login information

  • Restricting access to your account

  • Keeping account information accurate

  • All activity conducted through your account

Please contact us immediately if you believe your account has been accessed without authorization.

Havllisan may suspend or terminate accounts associated with fraud, misuse, unauthorized activity, or violations of these terms.

User-Submitted Content

You may be able to submit reviews, ratings, comments, photos, videos, messages, feedback, or other content.

You are responsible for ensuring that submitted content:

  • Is accurate and original

  • Is not false or misleading

  • Does not violate any law

  • Does not infringe intellectual-property rights

  • Does not violate privacy or publicity rights

  • Is not abusive, threatening, discriminatory, defamatory, obscene, or fraudulent

  • Does not contain malware, spam, or unauthorized advertising

By submitting content, you grant Havllisan a worldwide, royalty-free, transferable, sublicensable, non-exclusive, perpetual license to use, reproduce, display, edit, adapt, translate, publish, distribute, and share that content in any media.

You confirm that you have all necessary rights and permissions to grant this license.

Havllisan may remove, reject, restrict, or edit submitted content at its discretion.

Reviews and Testimonials

Reviews and testimonials represent the opinions and experiences of individual customers.

Individual results and experiences may vary. Havllisan does not guarantee that every customer will have the same experience.

We may verify, moderate, organize, shorten, or remove reviews that violate these Terms of Use.

Third-Party Links

Our website may contain links to third-party websites, applications, platforms, or services.

These links are provided for convenience only.

Havllisan does not control and is not responsible for:

  • Third-party content

  • Products or services

  • Privacy practices

  • Security practices

  • Availability

  • Accuracy

  • Transactions completed outside our website

Accessing or using third-party websites is at your own risk.

Third-Party Tools and Services

We may provide access to tools or services operated by third parties, including Shopify, payment providers, shipping companies, analytics services, and marketing platforms.

These services may be governed by separate terms and privacy policies.

Havllisan is not responsible for the availability, accuracy, security, or performance of third-party tools and services.

Electronic Communications

By using our website, placing an order, creating an account, or contacting us electronically, you agree to receive communications through:

  • Email

  • Website notices

  • Account notifications

  • Order and shipping updates

  • Customer-service messages

  • Other electronic methods

Electronic notices are considered valid communications.

Promotional communications may be unsubscribed from using the instructions included in the message.

Intellectual Property

All website content is owned by Havllisan, Hong Kong Gastech Engineering Limited, or authorized content providers.

Protected content may include:

  • Brand names

  • Trademarks

  • Logos

  • Product names

  • Product photography

  • Videos

  • Graphics

  • Icons

  • Text

  • Product descriptions

  • Website design

  • Software

  • Code

  • Page layouts

  • Promotional materials

You may not reproduce, modify, distribute, publish, display, license, sell, or commercially exploit any protected content without prior written authorization.

You may not use Havllisan trademarks, logos, metadata, hidden text, framing, or branding in a way that creates confusion or suggests an unauthorized relationship.

Intellectual Property Claims

If you believe that content on our website infringes your copyright, trademark, or other intellectual-property rights, please contact us and provide:

  • Your full name and contact information

  • Your physical or electronic signature

  • A description of the protected work

  • The location of the allegedly infringing material

  • Evidence of your ownership or authorization

  • A statement explaining why you believe the use is unauthorized

  • A statement confirming that the information in your claim is accurate

Please send intellectual-property claims to:

[Enter your Havllisan support email]

Incomplete claims may delay our review.

Site Content and Monitoring

Havllisan is not required to monitor all website activity or user-submitted content.

However, we may review, remove, edit, restrict, or refuse content that we believe:

  • Violates these terms

  • Is unlawful or misleading

  • Creates security risks

  • Violates third-party rights

  • Is harmful to customers or our business

We may cooperate with authorities when investigating illegal activity.

Website Availability

We aim to keep our website available and functioning properly, but we do not guarantee uninterrupted access.

The website may be temporarily unavailable due to:

  • Maintenance

  • Technical problems

  • Security updates

  • Hosting interruptions

  • Third-party service failures

  • Events outside our control

Havllisan may modify, suspend, discontinue, or remove any feature without notice.

Disclaimers

The website and all content, products, services, and information are provided on an “as is” and “as available” basis.

Havllisan does not guarantee that:

  • The website will always be available

  • The website will be error-free

  • All product information will always be complete or current

  • The website will be free from viruses or harmful components

  • All third-party services will function without interruption

  • Website content will meet every customer’s expectations

You use the website at your own discretion and risk.

Limitation of Liability

To the fullest extent permitted, Havllisan, Hong Kong Gastech Engineering Limited, and their directors, employees, partners, suppliers, contractors, service providers, licensors, and affiliates will not be liable for direct, indirect, incidental, special, punitive, exemplary, or consequential damages arising from:

  • Your use or inability to use the website

  • Products or services purchased through the website

  • Website interruptions or technical errors

  • Incorrect or incomplete information

  • Third-party links or services

  • Unauthorized access to information

  • Loss of data, revenue, profits, or business opportunities

  • Delays caused by carriers or service providers

  • User-submitted content

Your primary remedy for dissatisfaction with the website is to stop using it.

Indemnification

You agree to defend, indemnify, and hold harmless Havllisan, Hong Kong Gastech Engineering Limited, and their directors, employees, partners, suppliers, contractors, service providers, licensors, and affiliates from claims, losses, damages, liabilities, penalties, and expenses arising from:

  • Your violation of these Terms of Use

  • Your violation of our related store policies

  • Your misuse of the website

  • Your submitted content

  • Fraud, negligence, or intentional misconduct

  • Your violation of third-party rights

  • Your violation of any applicable requirement

Force Majeure

Havllisan is not responsible for delay, interruption, or failure caused by events beyond our reasonable control.

These events may include:

  • Natural disasters

  • Severe weather

  • Fire or flooding

  • War or terrorism

  • Civil unrest

  • Labor disputes

  • Pandemics or quarantines

  • Embargoes

  • Customs disruptions

  • Carrier interruptions

  • Internet or utility failures

  • Government actions

  • Supplier or fulfillment disruptions

Our obligations will be suspended for the duration of the affected event.

Risk of Loss

Products purchased through Havllisan are delivered by independent third-party carriers.

Risk of loss or damage transfers to the customer once the order has been handed over to the shipping provider.

Delivery, damaged-item, missing-item, and lost-package concerns will be handled according to our Shipping Policy and Return & Refund Policy.

Suspension and Termination

Havllisan may suspend, restrict, or terminate your access to the website if we believe you have:

  • Violated these terms

  • Engaged in fraud or unauthorized activity

  • Misused the website

  • Created a security or operational risk

  • Violated the rights of another person

Termination does not affect obligations or liabilities created before termination.

Governing Law

These Terms of Use are governed by the laws of Hong Kong, without regard to conflict-of-law principles.

Any dispute connected to these terms, the website, or its services will be handled by the appropriate courts located in Hong Kong.

Dispute Resolution

Before beginning formal legal proceedings, both parties agree to make a reasonable attempt to resolve the dispute through direct communication.

Please contact our customer support team with a detailed description of the concern.

Disputes must be brought individually and not as part of a class, consolidated, representative, or collective proceeding.

Severability

If any provision of these Terms of Use is found invalid or unenforceable, that provision will be limited or removed only to the extent necessary.

The remaining provisions will continue in full force.

No Waiver

If Havllisan does not immediately enforce a provision of these terms, this does not waive our right to enforce it later.

A waiver is only effective when provided in writing by an authorized representative.

Assignment

You may not transfer or assign your rights or obligations under these Terms of Use without prior written permission from Havllisan.

Havllisan may transfer or assign these terms as part of a merger, acquisition, restructuring, sale, or transfer of business operations.

Survival

Sections intended to remain effective after termination will continue to apply.

These may include:

  • Intellectual-property rights

  • User-content licenses

  • Disclaimers

  • Limitations of liability

  • Indemnification

  • Dispute-resolution provisions

Entire Agreement

These Terms of Use, together with our Privacy Policy, Terms of Purchase, Shipping Policy, Return & Refund Policy, and other referenced policies, form the complete agreement regarding your use of the website.

Additional terms may apply to specific products, promotions, subscriptions, or services.

Updates to These Terms

Havllisan may update, revise, or replace these Terms of Use at any time.

Changes will be posted on this page with an updated revision date.

Your continued use of the website after changes are posted means you accept the revised Terms of Use.

Contact Us

For questions about these Terms of Use or our website, please contact us:

Brand: Havllisan
Operating Company: Hong Kong Gastech Engineering Limited
Email: support@Havllisan.com
Phone:+1 (213) 212-7179
Website: https://Havllisan.com/